Motorcar Parts of America Inc (NASDAQ: MPAA) is an automotive aftermarket company that remanufactures, distributes, and sells replacement hard parts for light-duty vehicles, and also manufactures test solutions and diagnostic equipment for automotive applications. Revenue comes from transactional product sales to aftermarket customers, with net sales concentrated among a small number of large customers, making customer concentration a material risk. MPAA serves both the do-it-yourself and do-it-for-me aftermarket channels in North America. The company also participates in the $11 billion-plus global market for automotive test solutions and diagnostic equipment and the $40 billion medium and heavy-duty aftermarket parts market for truck, industrial, marine, and agricultural applications (per the FY2025 10-K filed 2025-06-09). Remanufacturing operations rely on a core exchange program in which used parts are returned by consumers, collected from customers, and rebuilt as raw material input. Operations span facilities in Torrance, California; Tijuana, Mexico; Ontario, Canada; Malaysia; Singapore; and Shanghai, China.

Revenue model

Transactional product sales of remanufactured hard parts and test solutions/diagnostic equipment to aftermarket retailers and distributors. Revenue is affected by marketing allowances offered to customers and by core exchange program accounting, where used cores returned through the supply chain represent both contract assets and contract liabilities on the balance sheet.

Products and services

Remanufactured automotive hard parts (including alternators and starters) for light-duty vehicles; medium and heavy-duty aftermarket replacement parts for truck, industrial, marine, and agricultural applications; automotive test solutions and diagnostic equipment for alternators, starters, inverters, and electric motors; power supply hardware and emulation software diagnostic products for electric vehicle and EV charging system development and production.

Customers and end markets

A majority of net sales are concentrated among a few large customers, with customer concentration identified as a material risk in the FY2025 10-K. End markets include the do-it-yourself (DIY) and do-it-for-me (DIFM) light-duty vehicle aftermarket in North America, original equipment manufacturers for test and diagnostic equipment, and the medium and heavy-duty vehicle aftermarket. Demand for replacement parts is driven by vehicle age and miles driven; the U.S. light-duty vehicle population was approximately 292 million with an average age of approximately 13 years (per the FY2025 10-K filed 2025-06-09).

Value-chain role

Remanufacturer and distributor sitting between used-core suppliers (consumers and core brokers) and aftermarket retail and commercial distribution customers. The company collects used cores through core exchange programs, remanufactures them at its own facilities, and ships finished goods to customers. It also manufactures test and diagnostic equipment at its New York facility using purchased electronic and custom components.

Geographic exposure

Primary manufacturing and distribution in Torrance, California and Tijuana, Mexico (multiple facilities totaling over 1.1 million square feet). Additional remanufacturing and warehouse operations in Ontario, Canada. International facilities in Malaysia, Singapore, and Shanghai, China. Core North American aftermarket focus with global marketing of test solutions and diagnostic equipment.

Source: SEC 10-K, filed 2025-06-09

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