Motorcar Parts of America, Inc. (MPAA) is a company dedicated to the production, reconditioning, and supply of essential aftermarket components for a diverse range of applications, including heavy-duty vehicles, industrial machinery, marine vessels, and agricultural equipment. The company's traditional product lines feature electrical rotating components such as alternators and starters, along with wheel hub assemblies and their corresponding bearings. Additionally, MPAA offers an extensive selection of braking system parts, including calipers, boosters, rotors, pads, and master cylinders. Expanding its expertise into advanced technologies, MPAA also furnishes sophisticated testing and diagnostic solutions for the development and manufacturing of electric vehicle (EV) powertrains. This offering includes specialized systems for testing electric motors, e-axles, advanced power emulators, and charging units. Furthermore, the company provides testing apparatus for alternators, starters, belt starter generators, and bench-top applications, alongside turbochargers and dedicated testing services for EV inverters. MPAA distributes its vast array of products across North America, reaching customers through major automotive retail chains, wholesale distribution networks, and directly supplying various automobile manufacturers for their aftermarket and warranty fulfillment initiatives. Founded in 1968, Motorcar Parts of America, Inc. maintains its corporate headquarters in Torrance, California.