Proper crankcase ventilation is key to smooth performance and engine longevity. Made from quality materials to resist cracking and brittleness, this PCV hose replaces a worn or leaking original equipment hose. 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] - [Oldsmobile Bravada: 2002, 2003, 2004]