2010 GM/Chev (HD) V8, 4.8L, Gas, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2010 GM 4.8L, ECM- Model: AAKA, Part Number: 12635858, Serial Number: 86AAKA201090TNR, Service Number: 12633238 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# 86AAKA201090TNR, Casting# 86AAKA201090TNR, Truck Year 2010 5B4KFD2D2A3441293