2010 GM/Chev (HD) 6.0L, TRUCK DELIVERY, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2009 GM/Chev (HD) 6.0L ECM- Part Number:12635858, Serial Number: 86AAKAK201052C4K, Serv: 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# 86AAKAK201052C4K, Casting# 86AAKAK201052C4K, Truck Year 2010 5B4KFD2D7A3441158