BorgWarner Inc. (NYSE: BWA) is a United States-based worldwide automotive industry components and parts supplier. 
It is primarily known for its powertrain products, which include manual and automatic transmissions and transmission components, (e.g., electro-hydraulic control components, transmission control units, friction materials, and one-way clutches), turbochargers, engine valve timing system components, along with four-wheel drive system components.

The company has 60 manufacturing facilities across 18 countries, which include the U.S., Canada, Europe, and Asia. 
It provides drivetrain component solutions to all three U.S. automakers, as well as a variety of European and Asian original equipment manufacturer (OEM) customers. 
BorgWarner has diversified into several automotive-related markets (1999), including ignition interlock technology (ACS Corporation est.1976) for preventing impaired operation of vehicles.

Historically, BorgWarner was also known for their ownership of the Norge appliance company (washers and dryers).