Wiper Arm Cap is a direct fit for the following:

2004-2007 Buick Rainier
2002-2009 Chevrolet Trailblazer
2002-2006 Chevrolet Trailblazer EXT
2002-2009 GMC Envoy
2002-2006 GMC Envoy XL
2002-2004 Oldsmobile Bravada

Genuine GM Part Number: 88944481