Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Allure: 2005, 2006, 2007, 2008, 2009] - [Buick Century: 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [Buick Enclave: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Buick LaCrosse: 2005, 2006, 2007, 2008, 2009] - [Buick Lucerne: 2006, 2007, 2008, 2009, 2010, 2011] - [Buick Regal: 1999, 2000, 2001, 2002, 2003, 2004, 2011] - [Chevrolet Colorado: 2004, 2005, 2006, 2007] - [Chevrolet Equinox: 2007, 2008, 2009, 2010, 2011, 2012] - [Chevrolet HHR: 2006, 2007, 2008, 2009, 2010, 2011] - [Chevrolet Impala: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011] - [Chevrolet Lumina: 2000, 2001] - [Chevrolet Monte Carlo: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [Chevrolet Traverse: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [GMC Acadia Limited: 2017] - [GMC Acadia: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [GMC Canyon: 2004, 2005, 2006, 2007] - [GMC Terrain: 2010, 2011, 2012] - [Hummer H3: 2006, 2007, 2008, 2009, 2010] - [Hummer H3T: 2009, 2010] - [Oldsmobile Intrigue: 1999] - [Pontiac Grand Prix: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008] - [Saturn Outlook: 2007, 2008, 2009, 2010]