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; and brake-related products comprising brake calipers, brake boosters, brake rotors, brake pads, and brake master cylinders. It also offers test solutions and diagnostic equipment for electric vehicle powertrain development and manufacturing, including electric motor test systems, e-axle test systems, advanced power emulators, and charging unit test systems, as well as test systems for alternators, starters, belt starter generator, and bench-top testers, as well as turbochargers and test services for electric vehicle inverters. 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.