2007 GM/Chev (HD) 4.8, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2007 GM/Chev (HD) 4.8L, ENGINE ECM- Part Number: 12613264, Serial Number: 86YPUHR172220047, HDW Number: 12589161, 2 Rectangular Plug with 80 Pins each, Reference images for condition. 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# 86YPUHR172220047, Casting# 86YPUHR172220047, Truck Year 2007 5B4KPD2V573431064