This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions.

Valve Cover and Rocker Box Gasket Kit 904-171 Features:

• Fits 2004-2010 Chevrolet; 2004-2010 GMC; 2006 Hummer; 2005-2011 Workhorse; 2005 Workhorse Custom Chassis
• Direct replacement — this valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles
• Ideal solution — engineered to help ensure a secure seal when an original gasket is due for service or damaged
• Durable construction — designed and manufactured to strict specifications for reliable performance
• Trustworthy quality — backed by a team of product experts in the United States and more than a century of automotive experience