2004-2010 GM 6.6L Duramax Thermostat Housing Cover LLY LBZ LMM - Polished

Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel material is corrosion and rust-resistant.

We've engineered an easy way of bleeding off air from your coolant system by adding our Black Anodized Aluminum Bleeder Screw with a built-in air channel and a Viton O-ring. This makes quick work of purging air from your system without removing the entire screw. Just turn, purge and tighten.

• 2004 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2004 Chevrolet Silverado 3500 6.6L DIESEL
• 2004 GMC Sierra 2500 HD 6.6L DIESEL
• 2004 GMC Sierra 3500 6.6L DIESEL
• 2005 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2005 Chevrolet Silverado 3500 6.6L DIESEL
• 2005 GMC Sierra 2500 HD 6.6L DIESEL
• 2005 GMC Sierra 3500 6.6L DIESEL
• 2006 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2006 Chevrolet Silverado 3500 6.6L DIESEL
• 2006 GMC Sierra 2500 HD 6.6L DIESEL
• 2006 GMC Sierra 3500 6.6L DIESEL
• 2007 Chevrolet Silverado 2500 HD Classic 6.6L DIESEL
• 2007 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2007 Chevrolet Silverado 3500 Classic 6.6L DIESEL
• 2007 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2007 GMC Sierra 2500 HD Classic 6.6L DIESEL
• 2007 GMC Sierra 2500 HD 6.6L DIESEL
• 2007 GMC Sierra 3500 Classic 6.6L DIESEL
• 2007 GMC Sierra 3500 HD 6.6L DIESEL
• 2008 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2008 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2008 GMC Sierra 2500 HD 6.6L DIESEL
• 2008 GMC Sierra 3500 HD 6.6L DIESEL
• 2009 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2009 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2009 GMC Sierra 2500 HD 6.6L DIESEL
• 2009 GMC Sierra 3500 HD 6.6L DIESEL
• 2010 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2010 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2010 GMC Sierra 2500 HD 6.6L DIESEL
• 2010 GMC Sierra 3500 HD 6.6L DIESEL