GMC Sierra Thermostat Housing Kit - Wehrli - Dual CP3 - Sparkle Granny Smith - 08-10. Billet top-outlet thermostat housing and upper coolant pipe for 2008-2010 Duramax LMM, replacing the factory crossover hose and return pipe.

Routed upward and forward from the thermostat, it improves access to driver-side fuel components and clears space for larger valley turbos. The CNC-machined billet upper housing is for WCFAB Dual CP3 and also works with dual alternators. Not compatible with PPE dual fueler kits. Includes coolant pipe, silicone boots, and T-bolt clamps.

Features

• 2008-2010 GMC Sierra Duramax (LMM); not 2006-2007
• For WCFAB Dual CP3; supports dual alternators; not for PPE dual fuelers
• Factory VGT compatible; required with race-cover/SXE valley turbos

Questions on fitment or install? Call our Austin, TX or Los Angeles, CA teams for guidance, installation, and customization: 512-982-9393 (TX) or 562-981-6800 (CA).

Buying multiple items? Ask about shipping discounts. We install on premises at both locations.

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