This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Blazer: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [Chevrolet C1500: 1999] - [Chevrolet S10: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004] - [Chevrolet Silverado 1500 Classic: 2007] - [Chevrolet Silverado 1500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013] - [GMC Jimmy: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [GMC Sierra 1500 Classic: 2007] - [GMC Sierra 1500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013] - [GMC Sonoma: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004] - [Isuzu Hombre: 1997, 1998, 1999] - [Oldsmobile Bravada: 1996, 1997, 1998, 1999, 2000, 2001]