2000 GM/Chev (HD) 4.8, TRUCK DELIVERY, ECMs, Fits to: Workhorse Custom Chassis W62, (Used) 2000 GM/Chev (HD) 4.8, ENGINE ECM- Model: E38, Part Number: 12635858, Serial Number: 86AAKAK2017472JV, Serv. Number: 12633238, 1 Rectangular Plug with 73 Pins, 1 Rectangular Plug with 80 Pins, 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# 86AAKAK2017472JV, Casting# 86AAKAK2017472JV, Truck Year 2000 5B4JFD2DIA3441832