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    <filerInfo>
      <filer>
        <filerCredentials>
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          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0000908255</issuerCik>
      <issuerName>BORGWARNER INC</issuerName>
      <secFileNumber>001-12162</secFileNumber>
      <issuerAddress>
        <com:street1>3850 HAMLIN RD.</com:street1>
        <com:city>AUBURN HILLS</com:city>
        <com:stateOrCountry>MI</com:stateOrCountry>
        <com:zipCode>48326</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>2487549200</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Weng Volker</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co., Inc.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>15978</noOfUnitsSold>
      <aggregateMarketValue>503978.00</aggregateMarketValue>
      <noOfUnitsOutstanding>219720048</noOfUnitsOutstanding>
      <approxSaleDate>05/09/2025</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/05/2025</acquiredDate>
      <natureOfAcquisitionTransaction>Performance Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>BORGWARNER INC</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>12446</amountOfSecuritiesAcquired>
      <paymentDate>02/05/2025</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/28/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>BORGWARNER INC</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3532</amountOfSecuritiesAcquired>
      <paymentDate>02/28/2024</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLKER WENG</name>
        <address>
          <com:street1>3850 HAMLIN RD.</com:street1>
          <com:city>AUBURN HILLS</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>48326</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>BORGWARNER INC</securitiesClassTitle>
      <saleDate>02/26/2025</saleDate>
      <amountOfSecuritiesSold>7053</amountOfSecuritiesSold>
      <grossProceeds>215047.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLKER WENG</name>
        <address>
          <com:street1>3850 HAMLIN RD</com:street1>
          <com:city>AUBURN HILLS</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>48326</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>BORGWARNER INC</securitiesClassTitle>
      <saleDate>03/10/2025</saleDate>
      <amountOfSecuritiesSold>9764</amountOfSecuritiesSold>
      <grossProceeds>295752.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/09/2025</noticeDate>
      <signature>VOLKER WENG</signature>
    </noticeSignature>
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144
0001776955
XXXXXXXX
LIVE
0000908255
BORGWARNER INC
001-12162
3850 HAMLIN RD.
AUBURN HILLS
MI
48326
2487549200
Weng Volker
Officer
Common
Charles Schwab & Co., Inc.
3000 Schwab Way
Westlake
TX
76262
15978
503978.00
219720048
05/09/2025
NYSE
Common
02/05/2025
Performance Stock Lapse
BORGWARNER INC
N
12446
02/05/2025
Equity Compensation
Common
02/28/2024
Restricted Stock Lapse
BORGWARNER INC
N
3532
02/28/2024
Equity Compensation
N
VOLKER WENG
3850 HAMLIN RD.
AUBURN HILLS
CA
48326
BORGWARNER INC
02/26/2025
7053
215047.00
VOLKER WENG
3850 HAMLIN RD
AUBURN HILLS
CA
48326
BORGWARNER INC
03/10/2025
9764
295752.00
05/09/2025
VOLKER WENG