2010 GM/Chev (HD) 4.8, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2009 GM/Chev (HD), ENGINE ECM- Model: E38, Part Number: 12635858, Serial Number: 86AAKAK201274VF0 Displacement: 4.8L, Horsepower: 285, Type Plug: 2 Rectangular, Pin Plug: 1 Plug of 80 Pins, 1 Plug of 73 Pins, 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# 86AAKAK201274VF0, Truck Year 2010, VIN 5B4KFD2D4A3441120 5B4KFD2D4A3441120