2007 GM/Chev (HD) V8, 4.8L, Gas, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2006 GM 4.8L, ECM- Model: YKYW, Service Number: 12602801, Serial Number: 86YKYW927089MBCD, Part Number: 12597116, 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# 86YKYW927089MBCD, Casting# 86YKYW927089MBCD, Truck Year 2007 5b4kpd2v373425036