(Used) 2006 GM 4.8L, ECM- Part Number: 89017749, Serial Number: 86YKYW926318KOGN, Engine: P-33680, Displacement: 4.8L, Horsepower: 255, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921