Exhibit 21.1
BORGWARNER INC. (Parent)
Significant Subsidiaries
As of December 31, 2025

NAME OF SUBSIDIARY | JURISDICTION
AKASOL Inc. | Michigan
Beijing Delphi Wan Yuan Engine Management Systems Co. Ltd. | China
BorgWarner (China) Investment Co., Ltd. | China
BorgWarner (Reman) Holdings, LLC | Delaware
BorgWarner (Thailand) Ltd. | Thailand
BorgWarner Aftermarket Europe GmbH | Germany
BorgWarner AKASOL GmbH | Germany
BorgWarner Alternators Inc. | Delaware
BorgWarner Arden LLC | Delaware
BorgWarner Arnstadt RE GmbH & Co. KG | Germany
BorgWarner Asia Inc. | Delaware
BorgWarner Automotive Asia Limited | Hong Kong
BorgWarner Automotive Components (Beijing) Co., Ltd. | China
BorgWarner Automotive Components (Jiangsu) Co., Ltd. | China
BorgWarner Automotive Components (Ningbo) Co., Ltd. | China
BorgWarner Automotive Components (Tianjin) Co., Ltd. | China
BorgWarner Automotive Components (Wuhan) Co., Ltd. | China
BorgWarner Battery Systems Technical Center GmbH | Germany
BorgWarner Brasil Ltda. | Brazil
BorgWarner Brasil Ltda., Piracicaba Branch | Brazil
BorgWarner Changnyeong LLC | South Korea
BorgWarner Chungju LLC | South Korea
BorgWarner Cooling Systems (India) Private Limited | India
BorgWarner Cooling Systems GmbH | Germany
BorgWarner Darmstadt RE GmbH & Co., KG | Germany
BorgWarner Dixon LLC | Delaware
BorgWarner Drivetrain de Mexico SA de CV | Mexico
BorgWarner Drivetrain Engineering GmbH | Germany
BorgWarner DTC LLC | South Korea
BorgWarner Electric Motors, LLC | Virginia
BorgWarner Emissions Systems (Ningbo) Co., Ltd. | China
BorgWarner Emissions Systems Holding LLC | Delaware
BorgWarner Emissions Systems India Private Limited | India
BorgWarner Emissions Systems of Michigan Inc. | Delaware
BorgWarner Emissions Systems Portugal, Unipessoal LDA | Portugal
BorgWarner Emissions Systems Spain, S.L.U. | Spain
BorgWarner Emissions Talegaon Private Limited | India
BorgWarner eMobility Poland Sp. zo.o. | Poland

NAME OF SUBSIDIARY | JURISDICTION
BorgWarner Engineering Kibo RE GmbH & Co. KG | Germany
BorgWarner Engineering Services Switzerland AG | Switzerland
BorgWarner ETTS Mexico S. de R.L. de C.V. | Mexico
BorgWarner Europe GmbH | Germany
BorgWarner France Holding S.A.S. | France
BorgWarner Gateshead Ltd. | United Kingdom
BorgWarner Germany Holding Services GmbH | Germany
BorgWarner Germany REH GmbH | Germany
BorgWarner Germany REM GmbH | Germany
BorgWarner Global Holding LLC | Delaware
BorgWarner Heidelberg I RE GmbH & Co. KG | Germany
BorgWarner Heidelberg II RE GmbH & Co. KG | Germany
BorgWarner Heidelberg REH GmbH | Germany
BorgWarner Holding Inc. | Delaware
BorgWarner Holding Kft. | Hungary
BorgWarner Holdings Limited | United Kingdom
BorgWarner Hungary Kft. | Hungary
BorgWarner India Holdings Inc. | Delaware
BorgWarner India Technical Center Private Limited | India
BorgWarner Industrial Solutions LLC | Delaware
BorgWarner Investment Holding LLC | Delaware
BorgWarner IT Services Europe GmbH | Germany
BorgWarner IT Services S.R.L. | Romania
BorgWarner Italy Holding S.R.L. | Italy
BorgWarner Ithaca LLC | Delaware
BorgWarner Izmir Otomotiv Sistemleri A.S. | Turkey
BorgWarner Juarez S. de R.L. de C.V. (formerly known as AS Catalizadorea Ambientales S de R.L. de C.V.) | Mexico
BorgWarner Kibo RE GmbH & Co. KG | Germany
BorgWarner Korea Holdings (PDS) B.V. | Netherlands
BorgWarner Korea Holdings LLC | Delaware
BorgWarner Korea LLC | South Korea
BorgWarner Limited | United Kingdom
BorgWarner Ludwigsburg GmbH | Germany
BorgWarner Ludwigsburg RE GmbH & Co. KG | Germany
BorgWarner Luxembourg Automotive Systems Sarl | Luxembourg
BorgWarner Markdorf Plant RE GmbH & Co. KG | Germany
BorgWarner Markdorf REH GmbH | Germany
BorgWarner Massachusetts Inc. | Delaware
BorgWarner Mexico Holdings II LLC | Delaware
BorgWarner Mexico Holdings LLC | Delaware
BorgWarner Mexico Propulsion Engineering Center S. de R.L. de C.V. | Mexico
BorgWarner Mobility Korea LLC | South Korea
BorgWarner Morse Systems India Private Limited | India
BorgWarner Morse Systems Italy S.r.l. | Italy

NAME OF SUBSIDIARY | JURISDICTION
BorgWarner Morse Systems Japan K.K. | Japan
BorgWarner Morse Systems Mexico, S.A. de C.V. | Mexico
BorgWarner Muggendorf RE GmbH & Co. KG | Germany
BorgWarner Netherlands Holding (PDS) B.V. | Netherlands
BorgWarner Noblesville LLC | Delaware
BorgWarner NW Inc. | Delaware
BorgWarner Ochang LLC | South Korea
BorgWarner Oroszlany Kft. | Hungary
BorgWarner Orsenigo Srl | Italy
BorgWarner PDS (Indiana) Inc. | Delaware
BorgWarner PDS (Livonia) Inc. | Delaware
BorgWarner PDS (Thailand) Limited | Thailand
BorgWarner PDS (USA) Inc. | Delaware
BorgWarner PDS Irapuato, S. de R.L. de C.V. | Mexico
BorgWarner PDS Technologies, L.L.C. | Delaware
BorgWarner Penzilgyi Kft. | Hungary
BorgWarner Poland Sp. zo.o. | Poland
BorgWarner PowerDrive Systems (Suzhou) Co., Ltd. | China
BorgWarner PowerDrive Systems (Tianjin) Co., Ltd. | China
BorgWarner PowerDrive Systems (Wuhu) Co., Ltd. | China
BorgWarner Propulsion II LLC | Delaware
BorgWarner Pyongtaek LLC | South Korea
BorgWarner Reman Holdings, L.L.C. | Delaware
BorgWarner Research & Development Co., Ltd. | China
BorgWarner Reynosa, S de R.L. de C.V. | Mexico
BorgWarner Rzeszow Sp. zo.o | Poland
BorgWarner Saltillo S. de R.L. de C.V. | Mexico
BorgWarner Seixal, S.A. (formerly known as Delphi Powertrain Systems Portugal) | Portugal
BorgWarner Shenglong (Ningbo) Co., Ltd. | China
BorgWarner Singapore Holdings Pte. Ltd. | Singapore
BorgWarner SLP S. de R.L. de C.V. | Mexico
BorgWarner South Asia LLC | Delaware
BorgWarner Southborough Inc. | Delaware
BorgWarner Spain Holding, S.L.U. | Spain
BorgWarner Stuttgart GmbH | Germany
BorgWarner Sweden AB | Sweden
BorgWarner Systems Engineering GmbH | Germany
BorgWarner Thermal Systems Inc. | Delaware
BorgWarner Thermal Systems of Michigan Inc. | Delaware
BorgWarner TorqTransfer Systems (Beijing) Co. Ltd. | China
BorgWarner Transmission Products LLC | Delaware
BorgWarner Transmission Systems (Jiangsu) Co., Ltd. | China
BorgWarner Transmission Systems Arnstadt GmbH | Germany
BorgWarner Transmission Systems GmbH | Germany

NAME OF SUBSIDIARY | JURISDICTION
BorgWarner Transmission Systems Korea LLC | South Korea
BorgWarner Trustees Limited | United Kingdom
BorgWarner Turbo & Emissions Systems de Mexico S.A. de C.V. | Mexico
BorgWarner Turbo & Emissions Systems France S.A.S. | France
BorgWarner Turbo Systems GmbH | Germany
BorgWarner Turbo Systems LLC | Delaware
BorgWarner Turbo Systems of Michigan Inc. | Delaware
BorgWarner Turbo Systems Worldwide Headquarters GmbH | Germany
BorgWarner UK Financing Ltd. | United Kingdom
BorgWarner UK Holding and Services Ltd. | United Kingdom
BorgWarner United Transmission Systems Co., Ltd. | China
BorgWarner US Holding LLC | Delaware
BorgWarner US Investment Holding LLC | Delaware
BorgWarner US Investment LLC | Delaware
BorgWarner US Technologies LLC | Delaware
BorgWarner USA Industries, LLC | Delaware
BorgWarner Viana, LDA | Portugal
BuradaWarner LLC | South Korea
BWA Receivables Corporation | Delaware
BWA Turbo Systems Holding LLC | Delaware
Cascadia Motion LLC | Delaware
Chitose Sangyo Co., Ltd. | Japan
Delphi Diesel Systems S.L.U. | Spain
Fast Warner Intelligent Control Systems (Xi’an) Co., Ltd. | China
Kuhlman LLC | Delaware
New PDS Corp. | Delaware
NSK - Warner (Shanghai) Co., Ltd. | China
NSK - Warner K.K. | Japan
NSK - Warner Mexico, S.A. de C.V. | Mexico
NSK - Warner U.S.A., Inc. | Michigan
Old Remco Holdings, LLC | Delaware
Old Remco International Holdings, LLC | Delaware
PT. NSK - Warner Indonesia | Indonesia
Rhombus Energy Solutions LLC | Delaware