(Used) 2097 GM/Chev (HD), ENGINE ECM- Part Number: 12602801, Serial Number: 86YPUHR171980194, HDW NO: 12589161, 12613264, Engine Information- Family Number: 7GMXH06.0583, Displacement: 6.0L, Horsepower: 360, 2 Rectangular Plugs with 80 Pins each, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921