AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 3, 2003
                       Registration Statement No. 333-______
                         SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C.  20549
         -----------------------------------------------------------------
                                      FORM S-3

                              REGISTRATION STATEMENT

                          UNDER THE SECURITIES ACT OF 1933
         -----------------------------------------------------------------
                                  BORGWARNER INC.
               (Exact name of registrant as specified in its charter)
                       --------------------------------------
                                      DELAWARE
           (State or other jurisdiction of incorporation or organization)
                       --------------------------------------
                                     13-3404508
                        (I.R.S. Employer Identification No.)
                       --------------------------------------
                             200 SOUTH MICHIGAN AVENUE
                              CHICAGO, ILLINOIS  60604
                                   (312) 322-8500
    (Address, including zip code, and telephone number, including area code, of
                     registrant's principal executive offices)
                 --------------------------------------------------
                             LAURENE H. HORISZNY, ESQ.
                   VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL
                                  BORGWARNER INC.
                             200 SOUTH MICHIGAN AVENUE
                              CHICAGO, ILLINOIS  60604
                                   (312) 322-8500
(Name, address, including zip code, and telephone number, including area code,
                               of agent for service)
                  ------------------------------------------------
                                      Copy to:
                              MICHAEL E. KERNAN, ESQ.
                                  MCGUIREWOODS LLP
                                77 WEST WACKER DRIVE
                              CHICAGO, ILLINOIS 60601
                                   (312) 849-8100
                  ------------------------------------------------
Approximate date of commencement of proposed sale to the public:  From time to
time after the effectiveness of this registration statement.

If the only securities being registered on this Form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box. / /

If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box.  /X/

If this Form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act registration statement number of the earlier effective
registration statement for the same offering. /  /

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  /  /

If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. /  /


TITLE OF EACH CLASS AMOUNT TO     PROPOSED   PROPOSED   AMOUNT OF
OF SECURITIES TO BE BE            MAXIMUM    MAXIMUM    REGISTRATION
REGISTERED          REGISTERED    OFFERING   AGGREGATE  FEE
                                  PRICE PER  OFFERING
                                  SHARE      PRICE
------------------- ------------- ---------- ----------- ----------------
Voting Common
Stock, par value
$0.01 per share(1) 160,000 shares $64.82(2) $10,371,200(2)$840.07(2)

(1) Each share of common stock includes one preferred share purchase right. No
separate consideration is payable for the preferred share purchase rights.

(2) Estimated solely for the purposes of calculating the registration fee, based
on the average of the high and low sales prices of the common stock as reported
by the New York Stock Exchange on June 30, 2003 in accordance with Rule 457(c)
of the Securities Act of 1933.

The registrant hereby amends this registration statement on such date or dates
as may be necessary to delay its effective date until the registrant shall file
a further amendment which specifically states that this registration statement
shall thereafter become effective in accordance with Section 8(a) of the
Securities Act of 1933 or until the registration statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.


     The information in this prospectus is not complete and may be changed. The
selling stockholder may not sell these securities until the registration
statement filed with the Securities and Exchange Commission is effective. This
prospectus is not an offer to sell these securities and it is not soliciting an
offer to buy these securities in any state where the offer or sale is not
permitted.

                     SUBJECT TO COMPLETION, DATED JULY 3, 2003
PRELIMINARY PROSPECTUS
                           160,000 SHARES OF COMMON STOCK
                                  BORGWARNER INC.

     This prospectus has been prepared for use in connection with the sale of up
to 160,000 shares of our common stock by the BorgWarner Inc. Benefit Plans
Investment Trust, as the selling stockholder. We will not receive any proceeds
from the sale of the shares by the selling stockholder.

     We will pay all expenses of registration incurred in connection with this
offering, and we have agreed to indemnify the selling stockholder against
certain liabilities, including liabilities under the Securities Act. The selling
stockholder will pay all selling commissions, brokerage fees and related
expenses.

     The selling stockholder has advised us that it will sell the shares from
time to time in the open market, on the New York Stock Exchange, in privately
negotiated transactions or a combination of these methods, at market prices
prevailing at the time of sale, at prices related to the prevailing market
prices, at negotiated prices, or otherwise as described under "Plan of
Distribution." The selling stockholder may sell the shares directly to
purchasers or to or through broker-dealers. The selling stockholder has not
entered into any underwriting arrangements.

     Our common stock is listed for trading on the New York Stock Exchange under
the symbol "BWA." On June 30, 2003, the last reported sale price of our common
stock on the New York Stock Exchange was $64.40.  Prospective purchasers are
urged to obtain current information as to the market prices of the common stock.

     Our executive offices are located at 200 South Michigan Avenue, Chicago,
Illinois 60604. Our telephone number is (312) 322-8500. Our website can be found
at www.bwauto.com.

     Investing in the common stock involves certain risks. See "Risk Factors"
beginning on page 3 of this prospectus for a discussion of risks applicable to
us and an investment in our securities.
                                  ----------------

     Neither the Securities and Exchange Commission nor any state securities
commission has approved of disapproved of these securities or passed upon the
adequacy or accuracy of this prospectus. Any representation to the contrary is a
criminal offense.

                The date of this prospectus is __________ ___, 2003.
                        TABLE OF CONTENTS
About This Prospectus........................     2
Forward Looking Statements...................     2
Risk Factors.................................     3
About BorgWarner Inc.........................     6
Use of Proceeds..............................     6
The Selling Stockholder......................     7
Plan of Distribution.........................     7
Legal Matters................................     10
Experts......................................     10
Where You Can Find More Information..........     10
Incorporation of Documents By Reference......     10

                               ABOUT THIS PROSPECTUS

     This prospectus is part of a registration statement that we filed with the
Securities and Exchange Commission ("SEC") using a "shelf" registration process.
The prospectus relates to the sale of up to 160,000 shares of our common stock,
which the selling stockholder may sell from time to time. This prospectus does
not contain all of the information included in the registration statement. For a
more complete understanding of the offering of the securities, you should refer
to the registration statement, including its exhibits. Prospectus supplements
may also add, update or change information contained in this prospectus. We urge
you to read both this prospectus and any prospectus supplement, together with
additional information described under the heading "Where You Can Find More
Information."

     You should rely only on the information contained or incorporated by
reference in this prospectus or provided in any amendments or supplements
hereto. We have not authorized anyone else to provide you with different
information. The information in this prospectus speaks only as of the date
indicated on the cover of this document unless the information specifically
indicates that another date applies.

     References in this prospectus to the terms "we" or "us" or other similar
terms mean BorgWarner Inc. unless we state otherwise or the context indicates
otherwise.

                             FORWARD-LOOKING STATEMENTS

     Certain statements contained or incorporated by reference in this
prospectus, including without limitation, statements containing the words
"believes,""anticipates," "hopes," "intends," "expects," "will," "plans," and
other similar words may constitute "forward-looking statements" within the
meaning of the Private Securities Litigation Reform Act of 1995. All statements,
other than statements of historical fact contained or incorporated by reference
in this prospectus, that we expect or anticipate will or may occur in the
future, including, without limitation, statements included in this prospectus
under "About BorgWarner Inc." and located elsewhere in this prospectus regarding
our financial position, business strategy and measures to implement that
strategy, including changes to operations, competitive strengths, goals,
expansion and growth of our business and operations, plans, references to future
success and other such matters, are forward-looking statements. These statements
are based on assumptions and analyses made by us in light of our experience and
our perception of historical trends, current conditions and expected future
developments, as well as other factors we believe are appropriate in the
circumstances. These forward-looking statements involve known and unknown risks,
uncertainties and other factors, including those described in the section
entitled "Risk Factors" in this prospectus or supplements to be provided with
this prospectus, as well as other factors that might be described from time to
time in our filings with the SEC, that may cause our actual results to differ
materially from expectations.

     Consequently, all of the forward-looking statements contained or
incorporated by reference in this prospectus are qualified by these cautionary
statements, and there can be no assurances that the actual results or
developments anticipated by us will be realized or, even if substantially
realized, that they will have the expected consequences to, or effects on, us
and our subsidiaries or our business or operations. Given these uncertainties,
prospective investors are cautioned not to place undue reliance on those
forward-looking statements. All subsequent forward-looking statements
attributable to us or persons acting on our behalf are expressly qualified in
their entirety by any of those factors described above and in the documents
containing such forward-looking statements. We disclaim any obligation to update
or to announce publicly any updates or revisions to any of the forward-looking
statements contained or incorporated by reference in this prospectus to reflect
any change in our expectations with regard thereto or any change in events,
conditions, circumstances or assumptions underlying the statements.

                                    RISK FACTORS

     An investment in our securities involves a high degree of risk. You should
carefully consider each of the following risks and all of the other information
included or incorporated by reference in this prospectus before you make any
decision to invest in our common stock. You should also refer to the discussion
above under the heading "Forward-Looking Statements."

     You should carefully consider the following factors before you make any
decision to invest in the common stock described in this prospectus:

Our industry is cyclical and our results of operations will be adversely
affected by industry downturns.

     Automotive and truck production and sales are cyclical and sensitive to
general economic conditions and other factors. For example, worldwide vehicle
production increased by 2.3% in 2002 while such production decreased by 3.8% in
2001 as compared to 2000. Significant reduction in automotive or truck
production would have a material adverse effect on our sales to original
equipment manufacturers and our financial position and operating results.

We are dependent on sport utility vehicle and light truck market segments.

     Some of our products, in particular four-wheel drive transfer cases, are
currently used exclusively in four-wheel drive systems for sport utility
vehicles and light trucks. For 2002, sales of four-wheel drive transfer cases
represented approximately 22% of our total consolidated revenue. Any significant
reduction in production in this market segment or loss of business in this
market segment would have a material adverse effect on our sales to original
equipment manufacturers and our financial position and operating results.

We face strong competition.

     We compete worldwide with a number of other manufacturers and distributors
that produce and sell products similar to ours. Price, quality and technological
innovation are the primary elements of competition. Our competitors include
vertically integrated units of our major original equipment manufacturer
customers, as well as a large number of independent domestic and international
suppliers. We are not as large as a number of these companies and do not have as
many financial or other resources. The competitive environment has changed
dramatically over the past few years as our traditional U.S. original equipment
manufacturer customers, faced with intense international competition, have
expanded their worldwide sourcing of components. As a result, we have
experienced competition from suppliers in other parts of the world that enjoy
economic advantages, such as lower labor costs, lower health care costs and, in
some cases, export or raw materials subsidies. Increased competition could
adversely affect our businesses.

We are under substantial pressure from original equipment manufacturers to
reduce the prices of our products.

     There is substantial and continuing pressure on original equipment
manufacturers to reduce costs, including costs of products we supply. Although
original equipment manufacturers have indicated that they will continue to rely
on outside suppliers, a number of our major original equipment manufacturer
customers manufacture products for their own uses that directly compete with our
products. These original equipment manufacturers could elect to manufacture such
products for their own uses in place of the products we currently supply. We
believe that our ability to develop proprietary new products and to control our
costs will allow us to remain competitive. However, we cannot assure you that we
will be able to improve or maintain our gross margins on product sales to
original equipment manufacturers or that the recent trend by original equipment
manufacturers towards increased outsourcing will continue.

     Annual price reductions to original equipment manufacturer customers appear
to have become a permanent feature of our business environment. In  2002 and
2001, the combination of price reductions to customers and cost increases for
material, labor and overhead, totaled approximately $75 million and $37 million,
respectively. To maintain our profit margins, we seek price reductions from our
suppliers, improve production processes to increase manufacturing efficiency,
update product designs to reduce costs and develop new products the benefits of
which support increased pricing. Our ability to pass through increased raw
material costs to our original equipment manufacturer customers is limited, with
cost recovery less than 100% and often on a delayed basis. We cannot assure you
that we will be able to reduce costs in an amount equal to annual price
reductions and increases in raw material costs.

We rely on sales to several major customers.

     Our worldwide sales in 2002 to Ford Motor Company, DaimlerChrysler and
General Motors Corporation constituted approximately 26%, 20% and 12%,
respectively, of our 2002 consolidated sales. The corresponding percentages for
2001 were 30%, 21% and 12%. No other single customer accounted for more than 10%
of our consolidated sales in 2001 or 2002.

     Although we have had long-standing relationships with each of Ford,
DaimlerChrysler and General Motors and have sold a wide variety of products to
various divisions of each company globally, the loss of any significant portion
of our sales to any of these customers would have a material adverse effect on
our financial position and operating results.

We are sensitive to the effects of our major customers' labor relations.

     All three of our primary North American customers, Ford, DaimlerChrysler
and General Motors, have major union contracts with the United Automobile,
Aerospace and Agricultural Implement Workers of America. Because of domestic
original equipment manufacturers' dependence on a single union, we are affected
by labor difficulties and work stoppages at original equipment manufacturers'
facilities. Any work stoppage could have a material adverse effect on our
financial position and operating results. For example, we lost approximately $25
million in revenue as result of the 1998 54-day strike by the union at General
Motors.

A significant part of our labor force is unionized.

     As of December 31, 2002, approximately 28% of our domestic hourly employees
were unionized. Our two most significant domestic collective bargaining
agreements are for our Muncie, Indiana plant and our Ithaca, New York plant. The
Muncie agreement expires in March 2006 and the Ithaca agreement expires in
October 2003. The hourly workers at our European facilities are also unionized.
While we believe that our relations with our employees are good, a prolonged
dispute with our employees could have a material adverse effect on our financial
position and operating results.

We are subject to extensive environmental regulations.

     Our operations are subject to laws governing, among other things, emissions
to air, discharges to waters and the generation, handling, storage,
transportation, treatment and disposal of waste and other materials. We believe
that our business, operations and activities have been and are being operated in
compliance in all material respects with applicable environmental and health and
safety laws. However, the operation of automotive parts manufacturing plants
entails risks in these areas, and we cannot assure you that we will not incur
material costs or liabilities as a result. Furthermore, through various
acquisitions over the years, we have acquired a number of manufacturing
facilities, and we cannot assure you that we will not incur materials costs and
liabilities relating to activities that predate our ownership. In addition,
potentially significant expenditures could be required in order to comply with
evolving environmental and health and safety laws that may be adopted in the
future.

     We believe that the overall impact of compliance with regulations and
legislation protecting the environment will not have a material adverse effect
on our future financial position or operating results, but we cannot assure you
that this will be the case. Capital expenditures and expenses in 2002
attributable to compliance with environmental laws were not material.

We may have liability under environmental laws.

     We and certain of our current and former direct and indirect corporate
predecessors, subsidiaries and divisions have been identified by the United
States Environmental Protection Agency and certain state environmental agencies
and private parties as potentially responsible parties at various hazardous
waste disposal sites under the Comprehensive Environmental Response,
Compensation and Liability Act and equivalent state laws. As a result, as of
March 31, 2003, we may be liable for the cost of clean-up and other remedial
activities at 44 of these sites.

     Based on information available to us, we have established a reserve in our
financial statements for indicated environmental liabilities, with a balance of
approximately $21.2 million at March 31, 2003. We currently expect this amount
to be expended over the next three to five years.

     We believe that none of these matters, individually or in the aggregate,
will have a material adverse effect on our future financial position or
operating results, either because estimates of the maximum potential liability
at a site are not large or because liability will be shared with other
potentially responsible parties. However, we cannot assure you of the ultimate
outcome.

                               ABOUT BORGWARNER INC.

     We are a leading global supplier of highly engineered systems and
components for powertrain applications. Our products help to improve vehicle
performance, fuel efficiency, handling and air quality. Our products are
manufactured and sold worldwide, primarily to original equipment manufacturers
of passenger cars, sport utility vehicles, trucks and commercial transportation
products. We operate manufacturing and technical facilities in 43 locations in
14 countries serving customers in North America, South America, Europe and Asia,
and we are an original equipment supplier to every major automotive OEM in the
world.

     Additional information regarding us, including our audited financial
statements and descriptions of our business, is contained in the documents
incorporated by reference in this prospectus. See "Where You Can Find More
Information" below and "Incorporation of Documents by Reference" below.

                                  USE OF PROCEEDS

     The selling stockholder will receive all of the proceeds from the sale of
the common stock offered under this prospectus.

                              THE SELLING STOCKHOLDER

     This prospectus covers the sale of up to 160,000 shares of common stock
which we will contribute to the BorgWarner Inc. Benefit Plans Investment Trust,
the selling stockholder, prior to the effectiveness of the registration
statement of which this prospectus is a part. The Northern Trust Company ("The
Northern") is trustee of the selling stockholder which is a trust holding the
assets of The Retirement Income Program of BorgWarner Diversified Transmission
Products Inc. Muncie Plant (the "Muncie Plan"), a qualified pension plan as
defined by Section 401(a) of the Internal Revenue Code of 1986, as amended (the
"Code"). BorgWarner Diversified Transmission Products Inc., an affiliate of
ours, is the sponsor of the Muncie Plan and we, by virtue of certain agreements,
have the responsibility to determine the nature, timing and amount of
contributions in satisfaction of contribution requirements under the Employment
Retirement Income Security Act of 1974, as amended ("ERISA") and the Code for
the Muncie Plan.  We make contributions from time to time in amounts that are
not less than the minimum amount required under, nor more than the maximum
deductible amount permitted by, Section 412 of the Code.

     Unless and until we make additional contributions of stock to satisfy our
ERISA contribution requirements to the Muncie Plan, the shares described herein
are the only shares of our common stock that are or will be held by the selling
stockholder and after they are sold, the selling stockholder will not own any of
our common stock. The shares are held in the custody of The Northern Trust
Company, 50 South LaSalle Street, Chicago, IL 60675, as the trustee for the
selling stockholder under a Trust Agreement made with us July 1, 1981, as
amended from time to time. We currently have ongoing banking and trustee
relationships with The Northern in the ordinary course of business and expect to
continue to have such relationships in the future.

     Except as described herein, neither the selling stockholder nor The
Northern is an affiliate of ours nor have either of them had any other material
relationship with us during the last three years.

                                PLAN OF DISTRIBUTION

     We are registering the shares on behalf of the selling stockholder. The
selling stockholder will offer and sell the shares to which this prospectus
relates for its own account. We will not receive any proceeds from the sale of
the shares. We will contribute 160,000 shares to the selling stockholder prior
to the effectiveness of the registration statement to satisfy our contribution
requirements under ERISA.

     We have agreed to indemnify the selling stockholder against specified
liabilities under the Securities Act and to pay substantially all of the
expenses incidental to the registration, offering
and sale of the securities to the public other than commissions, fees and
discounts of underwriters, brokers, dealers and agents.

     The selling stockholder may sell the shares of common stock described in
this prospectus directly to purchasers or to or through underwriters,
broker-dealers or agents, which may act as agents or principals.
 As a result, pledgees,
donees, transferees or other successors in interest that receive such shares as
a gift, distribution or other non-sale related transfer may offer shares of the
common stock covered by this prospectus. If any shares covered by this
prospectus qualify for sale pursuant to Rule 144 under the Securities Act of
1933, as amended (the "Securities Act"), the selling stockholder may sell such
shares under Rule 144 rather than pursuant to this prospectus.

     The selling stockholder may sell shares of common stock covered by this
prospectus from time to time in one or more of the following transactions:

     .    on the New York Stock Exchange;
     .    in privately-negotiated transactions, including block sale
          transactions;
     .    ordinary brokers' transactions, which may include long sales or short
          sales effected after the effective date of the registration statement
          of which this prospectus is a part;
     .    transactions involving block trades or otherwise on The New York Stock
          Exchange;
     .    purchases by brokers, dealers or underwriters as principal and resale
          by the purchasers for their own accounts pursuant to this prospectus;
     .    "at the market" to or through market makers or into an existing market
          for the shares;
     .    through put or call option transactions relating to or covered by the
          shares (whether exchange listed or otherwise); and
     .    any combination of the above methods of sale or any other legally
          available means.

The sale price to the public may be:

     .    the market price prevailing at the time of sale;
     .    a price related to such prevailing market price;
     .    at negotiated prices; or
     .    such other price as the selling stockholder determines from time to
          time.

     The selling stockholder shall have the sole and absolute discretion not to
accept any purchase, offer or make any sale of shares if it deems the purchase
price to be unsatisfactory at any particular time.

     In effecting sales, brokers or dealers engaged by the selling stockholder
may arrange for other brokers or dealers to participate in the resales. The
selling stockholder also may enter into option or other transactions with
broker-dealers that require the delivery to the broker-dealer of the shares,
which the broker-dealer may resell pursuant to this prospectus. The selling
stockholder may pledge the shares to a broker or dealer, and upon a default, the
broker or dealer may effect sales of the pledged shares pursuant to this
prospectus.

     The selling stockholder or its respective pledgees, donees, transferees or
other successors in interest, may also sell their shares directly to market
makers acting as principals or broker-dealers acting as agents for themselves or
their customers. Such broker-dealers may receive compensation in the form of
discounts, concessions or commissions from the selling stockholder or the
purchasers of shares for whom the broker-dealers may act as agents or to whom
they sell as principal or both, which compensation as to a particular
 broker-dealer may be in excess of customary commissions.
Market makers and block
purchasers purchasing the shares will do so for their own account and at their
own risk. It is possible that the selling stockholder will attempt to sell
shares of common stock in block transactions to market makers or other
purchasers at a price per share which may be below the then market price.

     The selling stockholder and any underwriters, broker-dealers or agents that
participate in the distribution of shares offered in this prospectus may be
deemed "underwriters" as that term is defined under the Securities Act. The SEC
may deem any commissions received by any underwriter, broker-dealer or agent and
any profit on the resale of the securities sold by them while acting as
principals to be underwriting discounts or commissions under the Securities Act.
Because the selling stockholder may be deemed to be an "underwriter," the
selling stockholder will be subject to the prospectus delivery requirements of
the Securities Act. In addition, any securities covered by this prospectus which
qualify for sale through Rule 144 under the Securities Act may be sold under
Rule 144 rather than through this prospectus. The selling stockholder has
advised us that it has not entered into any agreements, understandings or
arrangements with any underwriters or broker-dealers regarding the sale of the
securities. There is no underwriter or coordinating broker acting in connection
with the proposed sale of shares by the selling stockholder.

     When we are notified by the selling stockholder that any material
arrangement has been entered into with a broker-dealer for the sale of shares
through a block trade, special offering, exchange distribution or secondary
distribution or a purchase by a broker or dealer, a supplement to this
prospectus will be filed, if required, pursuant to Rule 424(b) under the
Securities Act, disclosing (1) the name of each such selling stockholder and of
the participating broker-dealer, (2) the number of shares involved, (3) the
price at which such shares were sold, (4) the commissions paid or discounts or
concessions allowed to such broker-dealer, where applicable, (5) that such
broker-dealer did not conduct any investigation to verify the information set
out or incorporated by reference in this prospectus and (6) other facts material
to the transaction. In addition, upon being notified by the selling stockholder
that a donee, pledgee, transferee or other successor-in-interest intends to sell
more than 500 shares, a supplement to this prospectus will be filed.

     The selling stockholder and any other persons participating in the sale or
distribution of the shares will be subject to the applicable provisions of the
Securities Exchange Act of 1934, as amended, and the rules and regulations under
such Act, including without limitation, Regulation M. These provisions may
restrict certain activities of, and limit the timing of, purchases and sales of
any shares of common stock offered under this prospectus by the selling
stockholder or other persons or entities. Furthermore, under Regulation M,
persons engaged in a distribution of securities are prohibited from
simultaneously engaging in market making and certain other activities with
respect to such securities for a specified period of time prior to the
commencement of such distributions, subject to specified exceptions or
exemptions. All of these limitations may affect the marketability of the shares.


     The BorgWarner Inc. Employee Benefits Committee (the "Committee") was
established, for, among other things, the purpose of fulfilling the fiduciary
responsibility of establishing the investment policy for the Muncie Plan and the
selling stockholder, as required by Section 401(b) of ERISA. In fulfilling its
ERISA duties, the Committee adopted an investment policy that the selling
stockholder should not hold any BorgWarner shares for an extended period of
time. Accordingly, we expect that when the selling stockholder receives the
contribution of shares from us, it will sell them to the public shortly
thereafter. There can be no assurance that the selling stockholder will sell any
or all of the shares of common stock offered by it hereunder.

                                   LEGAL MATTERS

     The validity of the common stock offered pursuant to this prospectus will
be passed upon for us by McGuireWoods LLP, Chicago, Illinois.

                                      EXPERTS

     The financial statements of BorgWarner Inc. as of December 31, 2002 and
2001 and for the three years in the period ended December 31, 2002 incorporated
in this prospectus by reference from BorgWarner Inc.'s Current Report on
Form 8-K dated July 2, 2003 have been audited by Deloitte &
Touche LLP, independent
auditors, as stated in their report which is incorporated herein by reference
(which expresses an unqualified opinion and includes an explanatory paragraph
relating to the adoption of Statement of Financial Accounting Standards No. 142,
"Goodwill and Other Intangible Assets"), and has been so incorporated in
reliance upon the report of such firm given upon their authority as experts in
accounting and auditing.

                        WHERE YOU CAN FIND MORE INFORMATION

     We file annual, quarterly and current reports, proxy statements and other
information with the SEC. Copies of these reports, proxy statements and other
information may be read and copied at the SEC's Public Reference Room at 450
Fifth Street, N.W., Washington, D.C. 20549. You may request copies of these
documents by writing to the SEC and paying a fee for the copying costs. You may
also call the SEC at 1-800-SEC-0330 for further information on the operation of
the Public Reference Room. Our SEC filings are also available to the public from
the SEC's web site at http://www.sec.gov.

                      INCORPORATION OF DOCUMENTS BY REFERENCE

     The SEC allows us to "incorporate by reference" certain of our publicly
filed documents into this prospectus, which means that we may disclose material
information to you by referring you to those documents. The information
incorporated by reference is considered to be part of this prospectus and any
later information that we file with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any additional documents we file with the SEC under Sections 13(a),
13(c), 14 or 15(d) of the Exchange Act at any time after the initial filing of
the registration statement, whether before or after it is declared effective,
until the offering of the securities is terminated. This prospectus is part of a
registration statement on Form S-3 that we filed with the SEC and does not
contain all of the information set forth in the registration statement.

     The following documents that we previously filed with the SEC (SEC File No.
001-12162) are incorporated by reference:

     (1)  our Annual Report on Form 10-K for the fiscal year ended December 31,
          2002, filed on March 21, 2003 (except for Items 6, 7, and 8 which have
          been updated and included in our Current Report on Form 8-K dated July
          2, 2003);
     (2)  our Quarterly Report on Form 10-Q for the fiscal quarter ended March
          31, 2003, filed on May 14, 2003;
     (3)  our Current Report on Form 8-K dated July 2, 2003;
     (4)  our Current Report on Form 8-K dated May 1, 2003;
     (5)  our Current Report on Form 8-K dated April 22, 2003, as amended by our
          Current Report on 8-K/A, furnished to the SEC on July 1, 2003;
     (6)  our Current Report on Form 8-K dated April 15, 2003;
     (7)  our Current Report on Form 8-K dated February 5, 2003; and
     (8)  the description of our voting common stock contained in our
          registration statement on Form S-3/A (Registration No. 333-84931)
          filed on September 21, 1999, including any amendment or report filed
          for the purposes of updating such description.

     We will provide at no cost to any person to whom a copy of this prospectus
is delivered, on written or oral request, a copy of any or all of the documents
incorporated by reference, other than exhibits to those documents, unless
specifically incorporated by reference. You should direct any requests for
documents to BorgWarner Inc., 200 South Michigan Avenue, Chicago, Illinois
60604, Attention: Corporate Secretary.
                          -------------------------------

     No dealer, salesperson or other person is authorized to provide any
information or to represent anything not contained in this prospectus. You must
not rely on any unauthorized information or representations. This prospectus is
an offer to sell only the securities offered hereby, but only under
circumstances and in jurisdictions where it is lawful to do so. The information
contained in this prospectus is current only as of its date.

--------------------------------------------------------------------------------

                                   160,000 SHARES
                                    Common Stock


                                  BORGWARNER INC.





                                     PROSPECTUS

                                _________ ___, 2003


--------------------------------------------------------------------------------




                                      PART II
                       INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses of Issuance and Distribution

     The following table sets forth the costs and expenses payable in connection
with the offerings described in this registration statement, all of which will
be paid by the registrant. All such expenses other than the registration fee are
estimates.

Securities and Exchange Commission registration fee    $    840.07
Legal fees and expenses                                $ 30,000.00
Accounting fees and expenses                           $ 41,000.00
Miscellaneous expenses                                 $    159.93

Total                                                  $ 72,000.00

Item 15.  Indemnification of Directors and Officers

     Section 145 of the Delaware General Corporation Law ("DGCL") provides as
follows:

     A corporation may indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative
(other than an action by or in the right of the corporation) by reason of the
fact that he is or was a director, officer, employee or agent of the
corporation, or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit or proceeding if he acted
in good faith and in a manner he reasonably believed to be in or not opposed to
the best interest of the corporation, and, with respect to any criminal action
or proceeding, had no reasonable cause to believe his conduct was unlawful. The
termination of any action, suit or proceeding by judgment, order, settlement,
conviction or upon a plea of nolo contendere or its equivalent, shall not, of
itself, create a presumption that the person did not act in good faith and in a
manner which he reasonably believed to be in or not opposed to the best
interests of the corporation, and, with respect to any criminal action or
proceeding, had reasonable cause to believe that his conduct was unlawful.

     A corporation may indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action or
suit by or in the right of the corporation to procure a judgment in its favor by
reason of the fact that he is or was a director, officer, employee or agent of
the corporation, or is or was serving at the request of the corporation, as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise against expenses (including attorney's fees)
actually and reasonably incurred by him in connection with the defense or
settlement of such action or suit if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the
corporation and except that no indemnification shall be made in respect to any
claim, issue or matter as to which such person shall have been adjudged to be
liable to the corporation unless and only to the extent that the Court of
Chancery or the court in which such action or suit was brought shall determine
upon application that, despite the adjudication of liability but in view of all
the circumstances of the case, such person is fairly and reasonably entitled to
indemnity for such expenses which the Court of Chancery or such other court
shall deem proper.

     BorgWarner Inc.'s restated certificate of incorporation provides for
indemnification of its directors and officers to the fullest extent permitted by
the DGCL, and allows BorgWarner Inc. to advance or reimburse litigation expenses
upon submission by the director, officer or employee of an undertaking to repay
such advances or reimbursements if it is ultimately determined that
indemnification is not available to such director or officer.

     As permitted by Section 102 of the DGCL, BorgWarner Inc.'s restated
certificate of incorporation provides that no director shall be liable to
BorgWarner Inc. or its stockholders for monetary damages for breach of fiduciary
duty as a director other than (i) for breaches of the director's duty of loyalty
to BorgWarner Inc. and its stockholders, (ii) for acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of law,
(iii) for the unlawful payment of dividends or unlawful stock purchases or
redemptions under Section 174 of the DGCL, or (iv) for any transaction from
which the director derived an improper personal benefit.

     The registrant maintains directors and officers liability insurance for the
benefit of its directors and officers.

     For information concerning the registrant's undertaking to submit to
adjudication the issue of indemnification for violation of the securities laws,
see Item 17 hereof.

Item 16.  Exhibits

EXHIBIT
NUMBER    DESCRIPTION OF EXHIBITS

3.1  Restated Certificate of Incorporation of registrant (incorporated by
     reference to Exhibit 3.1 to the registrant's Quarterly Report on Form
     10-Q for the quarter ended September 30, 1993).

3.2  By-Laws of registrant (incorporated by reference to Exhibit 3.2 to the
     registrant's Quarterly Report on Form 10-Q for the quarter ended September
     30, 1993).

3.3  Certificate of Designations, Preferences and Rights of Series A Junior
     Participating Preferred Stock (incorporated by reference to Exhibit 3.3 of
     the registrant's Annual Report on Form 10-K for the year ended December 31,
     1998).

3.4  Certificate of Ownership and Merger Merging BorgWarner Inc. into
     Borg-Warner Automotive, Inc. (incorporated by reference to Exhibit 99.1 of
     the registrant's Quarterly Report on Form 10-Q for the quarter ended March
     31, 2000).

4.1  Indenture, dated as of November 1, 1996, between Borg-Warner Automotive,
     Inc. and The First National Bank of Chicago (incorporated by reference to
     Exhibit 4.1 to Registration Statement No. 333-14717).

4.2  Indenture, dated as of February 15, 1999, between Borg-Warner Automotive,
     Inc. and The First National Bank of Chicago (incorporated by reference to
     Exhibit 4.1 to Amendment No. 1 to Registration Statement No. 333-66879).

4.3  Rights Agreement, dated as of July 22, 1998, between
     Borg-Warner Automotive, Inc. and ChaseMellon Shareholder Services, L.L.C.
     (incorporated by reference to Exhibit 4.1 to the Registration Statement on
     Form 8-A filed on July 24, 1998).

4.4  Form of Senior Debt Indenture (incorporated by reference to Exhibit 4.1 to
     Registration Statement No. 333-84931).

4.5  Form of Subordinated Debt Indenture (incorporated by reference to Exhibit
     4.3 to Registration Statement No. 333-84931).

5.1** Opinion of McGuireWoods LLP.

23.1* Consent of Deloitte & Touche LLP.

23.2**Consent of McGuireWoods LLP (included in Exhibit 5.1).
24.1  Powers of Attorney (included in signature page hereof).

*     Filed herewith.
**   To be filed by amendment.

Item 17. Undertakings

The undersigned registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post
effective amendment to this registration statement:

     (i) To include any prospectus required by Section 10(a)(3) of the
     Securities Act of 1933, as amended (the "Securities Act");

     (ii) To reflect in the prospectus any facts or events arising after the
     effective date of the registration statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in the
     registration statement. Notwithstanding the foregoing, any increase or
     decrease in volume of securities offered (if the total dollar value of
     securities offered would not exceed that which was registered) and any
     deviation from the low or high end of the estimated maximum offering range
     may be reflected in the form of prospectus filed with the Commission
     pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
     price represent no more than a 20 percent change in the maximum aggregate
     offering price set forth in the "Calculation of Registration Fee" table in
     the effective registration statement; and

     (iii) To include any material information with respect to the plan of
     distribution not previously disclosed in the registration statement or any
     material change to such information in the registration statement;

provided, however, that paragraphs (1)(i) and (1)(ii) above do not apply if
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the registrant pursuant to
Section 13 or Section 15(d) of the Securities Exchange Act of 1934 (the
"Exchange Act") that are incorporated by reference in the registration
statement;

(2) That, for the purpose of determining any liability under the Securities Act,
each such post-effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

(3) To remove from registration by means of a post-effective amendment any of
the securities being registered which remain unsold at the termination of the
offering.

The undersigned registrant hereby further undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

Insofar as indemnification for liabilities arising under the Securities Act may
be permitted to directors, officers and controlling persons of the registrant
pursuant to the provisions set forth in response to Item 15, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question of whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.
                            SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended,
BorgWarner Inc. certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-3 and has duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized in the City of Chicago, State of Illinois, on July 3, 2003.

                                   BORGWARNER INC.

                                   By:  /s/ TIMOTHY M. MANGANELLO
                                        Timothy M. Manganello
                                        Chief Executive Officer and Chairman of
                                        the Board

                                  BORGWARNER INC.
                                 POWER OF ATTORNEY

     Each person whose signature appears below hereby constitutes and appoints
Laurene H. Horiszny and Vincent M. Lichtenberger, and each acting alone, his/her
true and lawful attorneys-in-fact and agents, with full power of substitution
and resubstitution, for him/her and in his/her name, place and stead, in any and
all capacities, to sign any or all amendments or supplements to this
registration statement, whether pre-effective or post-effective, and to file the
same with all exhibits thereto and other documents in connection therewith, with
the Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents full power and authority to do and perform each and every act and thing
necessary or appropriate to be done with respect to this registration statement
or any amendments or supplements thereto in the premises, as fully to all
intents and purposes as he/she might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, as amended,
this registration statement has been signed by the following persons in the
capacities and on the dates indicated.

SIGNATURE                     CAPACITY                      DATE
-------------------------     ----------------------        -------------
/s/ TIMOTHY M. MANGANELLO     Chief Executive Officer and   July 3, 2003
--------------------------    Chairman of the Board
Timothy M. Manganello         (Principal Executive Officer)

/s/ GEORGE E. STRICKLER       Executive Vice President and  July 3, 2003
--------------------------    Chief Financial Officer
George E. Strickler           (Principal Financial Officer)

/s/ WILLIAM C. CLINE          Vice President and Controller July 3, 2003
--------------------------    (Principal Accounting Officer)
William C. Cline

/s/ PHYLLIS O. BONANNO        Director                      July 3, 2003
--------------------------
Phyllis O. Bonanno

/s/ DR. ANDREW F. BRIMMER     Director                      July 3, 2003
--------------------------
Dr. Andrew F. Brimmer

/s/ WILLIAM E. BUTLER         Director                      July 3, 2003
--------------------------
William E. Butler

/s/ JERE A. DRUMMOND          Director                      July 3, 2003
--------------------------
Jere A. Drummond


/s/ PAUL E. GLASKE            Director                      July 3, 2003
-------------------------
Paul E. Glaske


/s/ IVAN W. GORR
------------------------      Director                      July 3, 2003
Ivan W. Gorr


/s/ ALEXIS P. MICHAS
------------------------      Director                      July 3, 2003
Alexis P. Michas


/s/ JOHN RAU                  Director                      July 3, 2003
------------------------
John Rau
     

I                                 NDEX TO EXHIBITS
EXHIBIT
NUMBER                   DESCRIPTION OF EXHIBITS

3.1  Restated Certificate of Incorporation of registrant (incorporated by
     reference to Exhibit 3.1 to the registrant's Quarterly Report on Form
     10-Q for the quarter ended September 30, 1993).

3.2  By-Laws of registrant (incorporated by reference to Exhibit 3.2 to the
     registrant's Quarterly Report on Form 10-Q for the quarter ended September
     30, 1993).

3.3  Certificate of Designations, Preferences and Rights of Series A Junior
     Participating Preferred Stock (incorporated by reference to Exhibit 3.3 of
     the registrant's Annual Report on Form 10-K for the year ended December 31,
     1998).

3.4  Certificate of Ownership and Merger Merging BorgWarner Inc. into
     Borg-Warner Automotive, Inc. (incorporated by reference to Exhibit 99.1 of
     the registrant's Quarterly Report on Form 10-Q for the quarter ended March
     31, 2000).

4.1  Indenture, dated as of November 1, 1996, between Borg-Warner Automotive,
     Inc. and The First National Bank of Chicago (incorporated by reference to
     Exhibit 4.1 to Registration Statement No. 333-14717).

4.2  Indenture, dated as of February 15, 1999, between Borg-Warner Automotive,
     Inc. and The First National Bank of Chicago (incorporated by reference to
     Exhibit 4.1 to Amendment No. 1 to Registration Statement No. 333-66879).

4.3  Rights Agreement, dated as of July 22, 1998, between
     Borg-Warner Automotive, Inc. and ChaseMellon Shareholder Services, L.L.C.
     (incorporated by reference to Exhibit 4.1 to the Registration Statement on
     Form 8-A filed on July 24, 1998).

4.4  Form of Senior Debt Indenture (incorporated by reference to Exhibit 4.1 to
     Registration Statement No. 333-84931).

4.5  Form of Subordinated Debt Indenture (incorporated by reference to Exhibit
     4.3 to Registration Statement No. 333-84931).

5.1**Opinion of McGuireWoods LLP.

23.1*Consent of Deloitte & Touche LLP.

23.2**Consent of McGuireWoods LLP (included in Exhibit 5.1).

24.1  Powers of Attorney (included in signature page hereof).

*    Filed herewith.
**  To be filed by amendment.