This washer fluid reservoir is designed to match the fit and function of the original equipment reservoir. It is engineered to withstand the stresses of underhood heat and engine vibration on specified vehicle makes, models, and years. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Rainier: 2004, 2005, 2006, 2007] - [Chevrolet Trailblazer EXT: 2002, 2003, 2004, 2005, 2006] - [Chevrolet Trailblazer: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [GMC Envoy XL: 2002, 2003, 2004, 2005, 2006] - [GMC Envoy XUV: 2004, 2005] - [GMC Envoy: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Isuzu Ascender: 2003, 2004, 2005, 2006, 2007, 2008] - [Oldsmobile Bravada: 2002, 2003, 2004] - [Saab 9-7x: 2005, 2006, 2007, 2008, 2009].