2007 GM/Chev (HD) 8.1L GAS, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W62, (Used) 2007 GM 8.1L, ECM- Model: YKYW, Serial Number: 86YKYW926207J9MR, Part Number: 12597116, HDW Number: 12589161, Displacement: 8.1L, Horsepower: 330, 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# 86YKYW926207J9MR, Casting# 86YKYW926207J9MR, Truck Year 2007 5B4MPG2G373421239