5 0 Used 2011 Cummins GX450 Ecm. This ECM Was Modified By Westport. Westport ECM P/N $900 USD USED 2011 CUMMINS GX450 ECM. THIS ECM WAS MODIFIED BY WESTPORT. WESTPORT ECM P/N 10014481. CUMMINS ECM P/N 4993120. ENGINE SERIAL NUMBER 79502729. ENGINE INFORMATION ISX 485, ISX CM871 ,... ConditionUsedCPL/ARR3776Stock Number52621 MLS Number10275769CategoryEngine Control Modules (ECM) Last Updated10/1/2025 LocationPhoenix, AZ, US Sold ByAmerican Truck Sales & Salvage (844) 882-___ SHOWNUMBERCall Seller Email Seller Save More Info