M&D Distributors is a value-added distributor and remanufacturer of aftermarket parts for diesel-powered engines. Founded in 1943 in the Houston Ship Channel area, the company operates 41 branch locations across the United States with a field sales team of 25. Its work serves industries reliant on heavy-duty diesel applications, including trucking, agriculture, marine, rail, and infrastructure.
The company's technical expertise centers on diesel engine remanufacturing, failure analysis, and aftertreatment component service. Its product range covers mission-critical parts such as fuel injectors, fuel pumps, turbos, cylinder heads, engine blocks, crankshafts, and connecting rods. It also services aftertreatment systems including Diesel Particulate Filters (DPFs), Diesel Oxidation Catalysts (DOCs), and Exhaust Gas Recirculation (EGR) components.
With over 80 years in operation, M&D Distributors emphasizes its understanding of diesel engine failure analysis and strategic supplier relationships. The company states its operational focus is on maximizing equipment uptime for its customers.






