2011 GM/Chev (HD) 6.0L, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W62, (Used) 2011 GM/Chevy (HD) 6.0L ENGINE ECM - Part Number: 12640466, Serial Number: 86AAUSK011448Z0P, Service Number: 12616532, Warranty Security Tag: 178143, 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# 86AAUSK011448Z0P, Truck Year 2011, VIN 5B4LFG2E6B3447291 5B4LFG2E6B3447291