Motorcar Parts of America (MPAA)

The company’s main Hard Parts segment produces and distributes light-duty rotating electrical products, including alternators and starters, along with wheel hub assemblies and brake-related components such as calipers, brake boosters, rotors, and master cylinders. These parts are sold through major automotive retailers, warehouse distributors, and professional repair channels. Motorcar Parts of America also offers turbochargers and other replacement products used in everyday vehicle repair.

In addition to aftermarket parts, the company operates a Test Solutions and Diagnostic Equipment business. This segment provides equipment used to test alternators, starters, batteries, and other vehicle systems, serving customers such as automotive parts retailers, service centers, and manufacturers. Its Heavy Duty segment extends the company’s product reach into parts for commercial and heavy-duty applications.

Motorcar Parts of America is notable for its role in the replacement hard-parts supply chain, where scale, product availability, catalog coverage, and relationships with large retail customers are important competitive factors. The company also participates in remanufacturing, a process that restores used automotive components for resale, helping customers access lower-cost replacement options while supporting resource efficiency in the aftermarket parts industry.