Diesel Engine Control Modules — All Brands, All Conditions
OrderECM stocks replacement Engine Control Modules (ECM / ECU) for every major diesel engine platform. Whether you need a new OEM unit, a factory-remanufactured (Reman) exchange, or a tested used ECM, our catalogue covers Caterpillar, Cummins, Detroit Diesel, International (Navistar), Perkins, and John Deere — the six engine families that power the majority of the world's heavy trucks, construction equipment, generator sets, and industrial machinery.
Every ECM is verified by part number against the original engine serial number (ESN) before dispatch. New units ship in original manufacturer packaging. Remanufactured units are bench-tested against OEM specification and ship with all connector boots and mounting hardware included.
Browse by Brand
- Caterpillar ECM — C7, C9, C10, C12, C13, C15, C18, C27, C32, 3406E, 3126, G3500 Series
- Cummins ECM — ISX, QSB, QSL9, QST30, QSZ, Atlas Copco
- Detroit Diesel ECM — DDEC III, DDEC IV, Series 60
- International ECM — DT466, DT530, T444E, MaxxForce
- Perkins ECM — 1300 Generator, 1104C, 1106C, 2506, 2806
- John Deere ECM — PowerTech Series
Browse by Part Type
365-day replacement warranty · Free worldwide shipping via DHL, FedEx or UPS · 30-day money-back guarantee



