GMC Duramax Thermostat Housing Kit - Wehrli - Dual CP3 - Semi-Gloss Black - 06-10. This top-outlet billet thermostat housing and upper coolant pipe kit re-routes coolant on 2006-2010 LBZ/LMM trucks to free space and improve access around the driver-side fuel system.

Designed for WCFAB Dual CP3 setups, it replaces the OEM upper radiator hose that crosses the driver-side valve cover plus the coolant return pipe, changing flow to an upward, forward path from the thermostat. Compatible with dual alternator setups and factory VGT turbos; required when using race cover style or SXE turbos in the valley. Not compatible with PPE dual fueler kits or 2006-2007 GMC Sierra. CNC machined billet aluminum upper housing with included coolant pipe, silicone boots, and T-bolt clamps. Replaces GM part numbers 19330105, 15792824, 25833204, 97361881.

Features

• Top-outlet billet thermostat upper housing
• Revised routing for improved component access
• Dual CP3 and dual alternator compatible
• Factory VGT compatible; SXE/race cover valley fitment
• Includes pipe, silicone boots, and T-bolt clamps

Questions or fitment checks? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.

Ordering multiple items? Contact us for combined shipping discounts. We install on premises at both locations.

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