Description
Manufacturer Part Number: 12576106.This E.C.M. fits the following vehicles: 2003 4.3/4.8/5.3/6.0L Silverado (1500, 2500, 3500)..After you purchase the E.C.M. you will need to provide us with your V.I.N so that we can program the E.C.M..Plug and Play, Instructions Included