2007 GM/Chev (HD) V8, 4.8L, Gas, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2006 GM/Chev(HD), ENGINE ECM- Part Number: 12613264, Serial Number: 86YPUHR171990346, Serv Number: 12602801, HDW Number: 12589161, Engine: P-31997, Displacement: 4.8L, Horsepower: 255, 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# 86YPUHR171990346, Casting# 86YPUHR171990346, Truck Year 2007 5b4KPD2V273430793