(Used) 2006 GM V8, 8.1L ECM- Part Number: 12597116, Serial Number: 86YKYW926191G8JL, Serv Number: 12602801, HDW Number: 12t89161 Engine: P-33893, Family Number: 9GMXH08.1503, Horsepower: 285, Displacement: 4.8, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK TRUCK) 929 W PULASKI HWY, ELKTON, MD 21921