BorgWarner

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Global automotive powertrain and e-mobility technology supplier.

Last updated October 25, 2026

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First read: Nov 4, 2026
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Overview

BorgWarner is a United States-based automotive technology company headquartered in Auburn Hills, Michigan. It develops and manufactures propulsion, drivetrain, air-management, thermal-management, power-electronics and electric-vehicle systems for vehicle manufacturers and other automotive suppliers. Its products are used in passenger cars, sport-utility vehicles, vans, light trucks, commercial vehicles, buses, agricultural and construction equipment, and selected marine applications. The company primarily operates as an original-equipment supplier, selling technologies to major vehicle manufacturers around the world. The modern BorgWarner organization was assembled in 1928 from several established businesses, including Borg & Beck, Warner Gear, Morse Equalizing Spring Company, Marvel-Schebler, Long Manufacturing and Mechanics Universal Joint. These predecessor companies gave the group capabilities in clutches, transmissions, timing chains, carburetion, radiators and universal joints. During the twentieth century, BorgWarner became closely associated with transmission innovation. Warner Gear helped commercialize synchronizers for smoother manual shifting, while the company later developed overdrive units, torque converters, automatic transmissions, transfer cases and four-wheel-drive systems. Its T-10 four-speed manual transmission, introduced in the 1950s, became particularly prominent in American performance vehicles. The company expanded internationally through manufacturing facilities, subsidiaries and joint ventures. Important partnerships included Japanese ventures such as NSK-Warner, Tsubakimoto-Morse and Aisin-Warner. BorgWarner also broadened its technology portfolio through acquisitions in turbocharging, exhaust-gas recirculation, sensors, ignition, transmission controls, rotating electrical components and all-wheel-drive systems. The 1998 acquisition of Kühnle, Kopp & Kausch and later integration of Schwitzer established turbocharging as a major part of its business. BorgWarner reorganized its corporate structure several times. Borg-Warner Automotive became an independent public company in 1993 after being separated from Borg-Warner Security Corporation. Its headquarters moved from Chicago to the Detroit metropolitan area in 2005. From the mid-2000s onward, acquisitions such as Beru, Haldex Traction Systems, Gustav Wahler, Remy International, Sevcon and Delphi Technologies strengthened its position in vehicle electronics, thermal systems, propulsion controls and electrification. Since the late 2010s, the company has been shifting from conventional internal-combustion powertrain components toward hybrid and battery-electric propulsion. It invested in mobility-focused venture capital and startup networks, acquired electric-drive and power-electronics businesses, and expanded into battery systems, inverters, electric motors, software and controls. The 2020 purchase of Delphi Technologies was a major step in this transition. In 2023, BorgWarner separated its fuel-system and aftermarket businesses into PHINIA, allowing BorgWarner to concentrate more directly on air management, e-propulsion and drivetrain technologies. BorgWarner remains a global supplier with production and engineering operations across the Americas, Europe and Asia. Its public identity combines a long history in mechanical powertrain systems with a strategic focus on electrification, energy efficiency and electronically controlled propulsion. The company also maintains a long relationship with the Indianapolis 500 through the Borg-Warner Trophy and its racing turbocharger program.

History

BorgWarner traces its corporate lineage to several American and European manufacturing businesses. The oldest major predecessor was Morse Equalizing Spring Company, founded in 1880. Borg-Warner Corporation was formed in 1928 by bringing together businesses including Borg & Beck, Warner Gear, Marvel-Schebler, Long Manufacturing, Morse and Mechanics Universal Joint. Their combined capabilities covered clutches, transmissions, timing chains, carburetors, radiators and related automotive components. During the 1930s and 1940s, the group developed technologies that helped establish its automotive identity. Warner Gear worked on synchronizers that made manual transmissions easier to shift, while Morse Chain introduced roller-chain products. BorgWarner also commercialized a self-contained overdrive transmission adopted by Chrysler and other automakers. The company created its Automotive Service Parts Division and, in 1936, commissioned the Borg-Warner Trophy for the Indianapolis 500. Its German predecessor Stieber Rollkupplung was established in Munich in 1937. After the Second World War, BorgWarner expanded its transmission and driveline activities. It developed a lock-up torque converter and the Ford-O-Matic three-speed automatic transmission in the early 1950s. The T-10 four-speed manual transmission followed in 1957, initially associated with the Chevrolet Corvette and later used by other American manufacturers. International growth included operations in Brazil, Canada, England, Mexico and Japan, as well as the Aisin-Warner joint venture formed in 1969. The company also developed transfer cases, five-speed manual transmissions, continuously variable transmission applications and fuel-injection technologies. The late 1970s and 1980s brought restructuring and consolidation. BorgWarner sold or reorganized non-core businesses, consolidated automotive activities under Borg-Warner Automotive, and expanded sales and licensing relationships in Europe, Asia and Latin America. In 1987, a complex corporate reorganization separated the automotive business from the former Borg-Warner corporate structure. Borg-Warner Automotive was subsequently spun off as an independent company in 1993. During the 1990s, the company expanded its transmission, driveline and engine-management portfolio. It acquired automotive businesses from Coltec Industries in 1996 and entered turbocharging through the acquisition of Kühnle, Kopp & Kausch in 1998. The later integration of Schwitzer expanded its turbocharger and commercial-vehicle technology base. BorgWarner also supplied transfer cases and transmissions for sport cars, pickup trucks and sport-utility vehicles. From 2005 through the middle of the 2010s, BorgWarner pursued global manufacturing expansion and targeted acquisitions. It moved its headquarters to the Detroit metropolitan area in 2005 and added facilities across Europe, Asia and the Americas. Acquisitions included a majority interest in Beru, Eaton’s European transmission and engine-controls operations, Dytech Ensa, Haldex Traction Systems, Gustav Wahler and Remy International. These transactions broadened the company into sensors, ignition, thermal controls, exhaust-gas recirculation, rotating electrical equipment and torque-transfer systems. BorgWarner’s strategic direction changed further after 2017 as automakers accelerated hybrid and battery-electric development. Sevcon added electric-vehicle controls, while investments and partnerships with mobility-focused venture networks gave the company access to emerging propulsion technologies. BorgWarner then acquired or invested in businesses involved in electric motors, inverters, battery systems, charging, software and power electronics. The Delphi Technologies acquisition in 2020 materially strengthened these capabilities, and Akasol, Santroll, Rhombus Energy Solutions and Drivetek expanded the battery and electric-power portfolio. In July 2023, BorgWarner separated its fuel systems and aftermarket operations into PHINIA. The transaction sharpened BorgWarner’s focus on its remaining air-management, e-propulsion and drivetrain businesses. Today, the company serves conventional, hybrid and electric vehicles while positioning electrification, efficiency, thermal management and electronically controlled propulsion as key areas of future growth. Its motorsport relationship remains visible through the Indianapolis 500 trophy and the use of its Engineered for Racing turbocharger in IndyCar competition.

2023
PHINIA spin-off completed
[1]BorgWarneren.wikipedia.org
Fuel-system and aftermarket operations were separated into PHINIA, leaving BorgWarner more concentrated on propulsion and electrification technologies.
2021
Akasol acquired
[1]BorgWarneren.wikipedia.org
BorgWarner acquired the German battery manufacturer to strengthen commercial-vehicle and electric-vehicle battery systems.
2020
Delphi Technologies acquired
[1]BorgWarneren.wikipedia.org
The transaction expanded BorgWarner’s power-electronics, software and calibration capabilities.
2017
Sevcon acquired
[1]BorgWarneren.wikipedia.org
The acquisition added microprocessor controls and other electric-vehicle technology.
2005
Headquarters moved to the Detroit area
[1]BorgWarneren.wikipedia.org
BorgWarner relocated its world headquarters from Chicago to Auburn Hills, Michigan.
1998
Entry into turbochargers
[1]BorgWarneren.wikipedia.org
The acquisition of Kühnle, Kopp & Kausch established a larger presence in turbochargers and turbomachinery.
1993
Automotive business becomes independent
[1]BorgWarneren.wikipedia.org
Borg-Warner Automotive was spun off from Borg-Warner Security Corporation.
1969
Aisin-Warner joint venture formed
[1]BorgWarneren.wikipedia.org
BorgWarner and Aisin established a Japanese joint venture to manufacture automatic transmissions.
1957
T-10 four-speed transmission introduced
[1]BorgWarneren.wikipedia.org
The T-10 debuted in the Chevrolet Corvette and later became widely used by American automakers.
1936
Borg-Warner Trophy introduced
[1]BorgWarneren.wikipedia.org
The company commissioned the trophy awarded to the winner of the Indianapolis 500.
1928
Borg-Warner Corporation formed
[1]BorgWarneren.wikipedia.org
Several automotive manufacturers, including Borg & Beck, Warner Gear, Morse, Marvel-Schebler and Long Manufacturing, were combined into Borg-Warner Corporation.
1880
Morse Equalizing Spring Company founded
[1]BorgWarneren.wikipedia.org
One of the oldest predecessor businesses in BorgWarner’s corporate lineage was established as an industrial producer of automotive timing-chain products.

Products and positioning

Global automotive technology supplier combining established drivetrain expertise with expanding electric-propulsion and power-electronics capabilities.

Air management · 1998
Turbochargers
BorgWarner develops turbochargers for gasoline and diesel passenger vehicles, commercial vehicles and off-highway equipment. Its turbocharging activities grew through acquisitions of Kühnle, Kopp & Kausch and Schwitzer, and remain part of the company’s air-management portfolio.
Drivetrain · 1928
Transmission and drivetrain systems
The company’s traditional drivetrain portfolio includes manual and automatic transmission components, torque converters, transfer cases, clutches and torque-transfer systems. Its history includes the T-10 and T-5 manual transmissions, automatic-transmission technologies and four-wheel-drive systems.
E-propulsion
Electric drive modules
BorgWarner supplies integrated electric-drive modules combining motors, gearboxes and control electronics for hybrid and battery-electric vehicles. These systems are intended for applications ranging from passenger cars to commercial vehicles.
E-propulsion · 2020
Inverters and power electronics
Its power-electronics portfolio includes inverters, controls and related components that convert and manage electrical energy within electrified drivetrains. Delphi Technologies and later specialist acquisitions strengthened the company’s electronics and software capabilities.
E-propulsion · 2021
Battery systems
Through Akasol and other electrification activities, BorgWarner develops battery systems for electric and hybrid vehicles, including applications in commercial transportation and other demanding duty cycles.
Thermal management
Thermal-management products
BorgWarner produces thermal-control and cooling technologies used to regulate engines, transmissions, batteries and electric-drive components. The portfolio includes coolant-control and related heat-management products.
Emissions technology · 2010
Exhaust-gas recirculation systems
The company supplies exhaust-gas recirculation valves, pipes and associated thermal-control technologies for conventional powertrains. These products support emissions management and engine efficiency.

Controversies

2020
BorgWarner agrees to SEC settlement over asbestos liabilities
BorgWarner agreed to pay $950,000 in a settlement with the U.S. Securities and Exchange Commission (SEC) over allegations that it failed to calculate and report $700 million in future asbestos liability claims. The SEC said the company misstated financial statements from 2012 to 2016 by failing to account for certain asbestos liabilities.
Source

2017SOS Children’s Villages partnership
Global
BorgWarner became an international partner of SOS Children’s Villages, supporting flagship projects and employee and management participation in community initiatives.
Outcome. Continuing social-engagement partnership
Source
2012Engineered for Racing turbocharger program
United States · IndyCar Series
BorgWarner’s EFR turbocharger has been used across IndyCar competition since 2012, linking the company’s racing activities with its production turbocharger expertise.
Outcome. Continuing racing technology program
Source
1936Borg-Warner Trophy
United States · Global motorsport
BorgWarner has sponsored and presented the trophy awarded to the winner of the Indianapolis 500 since 1936, making the trophy one of the company’s most visible public brand assets.
Outcome. Long-running motorsport association
Source

Brand decisions

2023
Spin off fuel systems and aftermarket operationsStrategy
Background
BorgWarner aimed to concentrate its capital and management attention on propulsion, air management and electrification.
Action taken
The company separated its fuel-parts and aftermarket businesses into PHINIA, an independently traded company.
Aftermath
BorgWarner became more focused on e-propulsion, drivetrain and air-management technologies while PHINIA operated the separated businesses.
Source
2020
Acquire Delphi TechnologiesM&A
Background
BorgWarner sought greater capabilities in power electronics, software, calibration and electrified propulsion.
Action taken
The company acquired Delphi Technologies and integrated its relevant technologies into BorgWarner’s propulsion portfolio.
Aftermath
The acquisition strengthened BorgWarner’s ability to supply electronically controlled hybrid and electric powertrains.
Source
2017
Increase focus on electric mobilityStrategy
Background
The automotive industry was moving toward electrified propulsion, creating demand for electric motors, controls, software and power electronics.
Action taken
BorgWarner acquired Sevcon, invested in mobility venture networks and began building a broader electric-vehicle technology ecosystem.
Aftermath
The company continued expanding through acquisitions in batteries, electric drives, inverters and charging technologies.
Source

Recent events

2022.02.15
Reported2022.02.15
BorgWarner announces acquisition of Santroll's light vehicle eMotor business[4]BorgWarner 宣布收购 Santroll 轻型汽车电机业务prnewswire.com
BorgWarner announced the acquisition of Santroll's light vehicle eMotor business in China for up to ¥1.4 billion. The announcement describes the acquisition; it does not establish that the transaction was completed.
2022.02.15
Reported2022.02.15
BorgWarner sells Water Valley facility to Atar Capital[4]BorgWarner 宣布收购 Santroll 轻型汽车电机业务prnewswire.com
BorgWarner reported that it sold its Water Valley, Mississippi facility to Atar Capital.
2021.11.03
Reported2021.11.03
BorgWarner announced North American inverter program award[5]BorgWarner 宣布获得北美逆变器项目prnewswire.com
BorgWarner announced that it secured an award for a North American inverter program with a global OEM. The program is expected to launch in 2024.
2021.06.04
Reported2021.06.04
BorgWarner completes acquisition of majority stake in AKASOL[6]BorgWarner完成收购AKASOL多数股权prnewswire.com
BorgWarner completed its tender offer for AKASOL shares and owned 89.08% of AKASOL's outstanding shares following completion.
2021.02.25
Reported2021.02.26
BorgWarner and Kettering University establish scholarship initiatives[7]BorgWarner与凯特林大学设立奖学金项目prnewswire.com
BorgWarner and Kettering University established scholarship initiatives through a $1,025,000 donation. The BorgWarner Scholars Program is intended to provide annual scholarships, primarily for African American and Hispanic students in financial need interested in engineering co-ops at BorgWarner.
2021.02.16
Reported2021.02.17
BorgWarner announces acquisition of Akasol[8]博格华纳宣布收购Akasolinsideevs.com
BorgWarner announced an acquisition of Akasol, with a wholly owned subsidiary launching a voluntary public takeover offer for all outstanding shares at €120 per share. Holders of approximately 59% of Akasol’s outstanding shares had committed to accept the offer.
2020.10.02
Reported2020.10.02
BorgWarner completed its acquisition of Delphi Technologies[9]博格华纳完成对德尔福科技的收购finanznachrichten.de
BorgWarner announced that it completed its acquisition of Delphi Technologies on October 2, 2020. The company said the combination would strengthen its electronics and power electronics offerings and other businesses.
2020.10.02
Reported2020.10.02
BorgWarner appoints two directors to its board[10]BorgWarner任命两名董事加入董事会prnewswire.com
BorgWarner announced that Nelda J. Connors and David S. Haffner had been named to its board of directors.
Unconfirmed
Reported2020.08.27
BorgWarner agrees to SEC settlement over asbestos liabilities[3]BorgWarner agrees to SEC settlement over asbestos liabilitiescomplianceweek.com
BorgWarner agreed to pay $950,000 in an SEC settlement over allegations that it failed to calculate and report $700 million in future asbestos liability claims. The SEC said the company misstated financial statements from 2012 to 2016 by failing to account for certain asbestos liabilities.
2020.01.28
Reported2020.01.28
BorgWarner announces acquisition of Delphi Technologies[11]博格华纳宣布收购德尔福科技finance.sina.com.cn
BorgWarner announced a $3.3 billion acquisition of Delphi Technologies, with the deal intended to expand its hybrid and electric vehicle business.

Sources28 sources

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