GMC Sierra Thermostat Housing Kit - Wehrli - Top Outlet Billet - Sparkle Bomber Orange - 08-10. Billet thermostat upper housing and coolant pipe kit that re-routes the top outlet for cleaner service access.

For 2008-2010 Sierra Duramax (not 2006-2007). It replaces the OEM upper hose and coolant return pipe, re-routing flow upward and forward from the thermostat to free up space and improve access on the driver side. Includes coolant pipe, silicone boots, and T-bolt clamps. Compatible with factory VGT; required with race cover or SXE valley turbos. Single (WCF100420) and twin CP3 (WCF100424) options; dual CP3 or dual-alternator trucks use WCF100424.

Features

• CNC-machined billet aluminum thermostat upper housing
• Upward/forward top-outlet routing
• Includes pipe, silicone boots, and T-bolt clamps
• Sparkle Bomber Orange powder coat

Questions or planning a build? Call our Austin, TX or Los Angeles, CA area teams; installation and customization available at both shops: 512-982-9393 (TX), 562-981-6800 (CA).

Buying multiple items? Contact us for shipping discounts.

We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov