Motorcar Parts of America, Inc. manufactures, remanufactures, and distributes heavy-duty truck, industrial, marine, and agricultural application replacement parts. The company offers rotating electrical products, including alternators and starters; wheel hub assemblies and bearings; brake-related products comprising brake calipers, brake boosters, and brake master cylinders; and diagnostics and other products, which consist of diagnostics systems and advanced power emulators that are used for development of electric vehicles and aerospace applications, as well as power electronic products for the development and production of electric vehicles and turbochargers. It also designs and manufactures test solutions for performance, endurance, and production testing of electric motors, inverters, alternators, starters, and belt starter generators for the original equipment, aerospace, and aftermarket. The company sells its products to automotive retail chain stores and warehouse distributors, as well as various automobile manufacturers for their aftermarket programs and warranty replacement programs in North America. Motorcar Parts of America, Inc. was founded in 1968 and is headquartered in Torrance, California.