Radiator Tank Cap is a direct fit for the following:

2009-2017 Buick Enclave
2005-2007 Buick LaCrosse
2006-2011 Buick Lucerne
2004-2007 Buick Rainier
2004-2012 Chevrolet Colorado
2003-2014 Chevrolet Express 1500
2003-2023 Chevrolet Express 2500
2003-2023 Chevrolet Express 3500
2010-2016 Chevrolet Express 4500
2006-2011 Chevrolet HHR
2004-2005 Chevrolet Impala
2004-2005 Chevrolet Monte Carlo
2003-2006 Chevrolet SSR
2002-2009 Chevrolet Trailblazer
2002-2006 Chevrolet Trailblazer EXT
2009-2017 Chevrolet Traverse
2007, 2009-2016 GMC Acadia

2017 GMC Acadia Limited
2004-2012 GMC Canyon
2002-2009 GMC Envoy
2002-2006 GMC Envoy XL
2004-2005 GMC Envoy XUV
2003-2014 GMC Savana 1500
2003-2023 GMC Savana 2500
2003-2023 GMC Savana 3500
2010-2016 GMC Savana 4500
2006-2010 Hummer H3
2009-2010 Hummer H3T
2002-2004 Oldsmobile Bravada
2004-2007 Pontiac Grand Prix
2009-2010 Saturn Outlook

Genuine GM Part Number: 15042975