2008 GM/Chev (HD) 4.8, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2008 GM 4.8L, ENGINE ECM- Serial Number: 86YPMUK18007W00R, Part Number: 12617630, Service Number: 12612384 Displacement: 4.8L, Horsepower: 255, Engine: P-32777 Truck: 575477 For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 86YPMUK18007W00R, Truck Year 2008, VIN 5B4KPD28583434204 5B4KPD28583434204