This 4WD actuator valve directly replaces the original equipment valve on certain vehicle years, makes and models. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Blazer: 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [Chevrolet S10: 1999, 2000, 2001, 2002, 2003, 2004] - [GMC Jimmy: 1999, 2000, 2001] - [GMC Sonoma: 1999, 2000, 2001, 2002, 2003, 2004] - [Oldsmobile Bravada: 1999, 2000, 2001, 2002]