2010 Workhorse Custom Chassis W42, Truck delivery, Body ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2009 GM/Chev (HD) 4.8L, ENGINE ECM- Serial Number: 86AAKAK201747237, Part Number: 12635858, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Truck Year 2010, VIN 5b4jfd2d5a3441879, Part# 12633238 5b4jfd2d5a3441879