GMC Duramax LMM Thermostat Housing Kit - Wehrli - Bengal Silver - 2006-2010. This top-outlet billet thermostat housing and upper coolant pipe kit reroutes the upper hose for a cleaner layout on LBZ/LMM trucks.

By moving coolant flow up and forward from the thermostat, it replaces the factory crossover and return pipe, improving access to driver-side fuel components and creating space for larger aftermarket turbochargers. CNC-machined billet aluminum with a Bengal Silver powder coat. Offered for single CP3 (WCF100420) or twin CP3 (WCF100424); use WCF100424 on WCFab dual CP3 or dual-alternator trucks. Compatible with factory VGT turbos and required for race-cover or SXE turbos mounted in the valley. Replaces GM 19330105, 15792824, 25833204, 97361881. Not compatible with 2006-2007 GMC Sierra.

Features

• CNC-machined billet aluminum thermostat upper housing
• Up-and-forward routing replaces OEM crossover and return pipe
• Frees room near driver-side valve cover for turbo upgrades
• Includes coolant pipe, silicone boots, and T-bolt clamps
• Custom Bengal Silver powder coat finish
• Single or twin CP3 configuration options

Have questions or planning a build? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA).

If you are considering 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