Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit - Gloss Black

The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM Duramax replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant routing to an upwards and forward layout from the thermostat, this kit improves access to driver side fuel system components, adds room for larger aftermarket turbochargers, and updates engine bay appearance. Options available for single (P/N WCF100420) or twin CP3 setups (P/N WCF100424) in your choice of custom powder coat finishes. - - Replaces the following GM Part Numbers: 19330105, 15792824, 25833204, 97361881 Wehrli Custom Fab Thermostat Housing Kit, 2006-2010 Duramax LBZ/LMM, Gloss Black IF YOU HAVE A DUAL WCFAB DUAL CP3 KIT OR A DUAL ALTERNATOR TRUCK, USE KIT NUMBER WCF100424.

• Required for race cover style or SXE turbochargers being mounted in the valley
• Includes coolant pipe, silicone boots, and t-bolt clamps
• CNC Machined Billet Aluminum Thermostat Upper Housing
• Compatible with factory VGT style turbochargers
• Custom Powder Coat Finish

Upgrade your 2006-2010 Duramax LBZ/LMM engine with the Wehrli Custom Fab Thermostat Housing Kit, designed to improve coolant routing and engine bay access. This CNC-machined billet aluminum upper housing replaces the OEM upper radiator hose that crosses over the driver side valve cover, offering a more efficient upward and forward coolant flow layout. This modification not only enhances engine bay appearance but also creates additional space for larger aftermarket turbochargers and easier access to driver side fuel system components. The kit includes a coolant pipe, silicone boots, and T-bolt clamps, ensuring a complete and reliable upgrade.
Constructed from high-quality billet aluminum, the thermostat housing features a durable gloss black powder coat finish that resists corrosion and adds a sleek look to your engine bay. It is compatible with factory VGT style turbochargers and is required for race cover style or SXE turbochargers mounted in the valley. Options are available for single or twin CP3 setups, with the twin CP3 kit designed specifically for dual WCFAB dual CP3 or dual alternator configurations. Replacing several OEM part numbers, this kit is an essential upgrade for serious enthusiasts seeking improved coolant flow, turbo clearance, and engine bay aesthetics.
Designed for direct fitment on applicable Chevy Silverado 2500 HD and GMC Sierra 2500/3500 HD models, this kit ensures a straightforward installation process. Whether you're preparing your truck for high-performance applications or simply upgrading for better reliability and appearance, Wehrli's thermostat housing kit provides a robust solution for your Duramax diesel engine.

Features:

• CNC machined billet aluminum upper housing for durability and precision

• Upward and forward coolant routing improves access and turbo clearance

• Includes coolant pipe, silicone boots, and T-bolt clamps for complete installation

• Compatible with factory VGT style turbochargers and dual CP3 setups

• Finished with a durable gloss black powder coat for corrosion resistance and aesthetics

Fitment:
Chevrolet Silverado 2500 HD LS 2006
Chevrolet Silverado 2500 HD LT 2006
Chevrolet Silverado 2500 HD LT 2007
Chevrolet Silverado 2500 HD LT 2008
Chevrolet Silverado 2500 HD LT 2009
Chevrolet Silverado 2500 HD LT 2010
Chevrolet Silverado 2500 HD LTZ 2007
Chevrolet Silverado 2500 HD LTZ 2008
Chevrolet Silverado 2500 HD LTZ 2009
Chevrolet Silverado 2500 HD LTZ 2010
Chevrolet Silverado 2500 HD WT 2006
Chevrolet Silverado 2500 HD WT 2007
Chevrolet Silverado 2500 HD WT 2008
Chevrolet Silverado 2500 HD WT 2009
Chevrolet Silverado 2500 HD WT 2010
Chevrolet Silverado 2500 HD Classic LS 2007
Chevrolet Silverado 2500 HD Classic LT 2007
Chevrolet Silverado 2500 HD Classic WT 2007
Chevrolet Silverado 3500 LS 2006
Chevrolet Silverado 3500 LT 2006
Chevrolet Silverado 3500 WT 2006
Chevrolet Silverado 3500 Classic LS 2007
Chevrolet Silverado 3500 Classic LT 2007
Chevrolet Silverado 3500 Classic WT 2007
Chevrolet Silverado 3500 HD LT 2007
Chevrolet Silverado 3500 HD LT 2008
Chevrolet Silverado 3500 HD LT 2009
Chevrolet Silverado 3500 HD LT 2010
Chevrolet Silverado 3500 HD LTZ 2007
Chevrolet Silverado 3500 HD LTZ 2008
Chevrolet Silverado 3500 HD LTZ 2009
Chevrolet Silverado 3500 HD LTZ 2010
Chevrolet Silverado 3500 HD WT 2007
Chevrolet Silverado 3500 HD WT 2008
Chevrolet Silverado 3500 HD WT 2009
Chevrolet Silverado 3500 HD WT 2010
GMC Sierra 2500 HD SLE 2007
GMC Sierra 2500 HD SLE 2008
GMC Sierra 2500 HD SLE 2009
GMC Sierra 2500 HD SLE 2010
GMC Sierra 2500 HD SLT 2007
GMC Sierra 2500 HD SLT 2008
GMC Sierra 2500 HD SLT 2009
GMC Sierra 2500 HD SLT 2010
GMC Sierra 2500 HD WT 2007
GMC Sierra 2500 HD WT 2008
GMC Sierra 2500 HD WT 2009
GMC Sierra 2500 HD WT 2010
GMC Sierra 3500 HD SLE 2007
GMC Sierra 3500 HD SLE 2008
GMC Sierra 3500 HD SLE 2009
GMC Sierra 3500 HD SLE 2010
GMC Sierra 3500 HD SLT 2007
GMC Sierra 3500 HD SLT 2008
GMC Sierra 3500 HD SLT 2009
GMC Sierra 3500 HD SLT 2010
GMC Sierra 3500 HD WT 2007
GMC Sierra 3500 HD WT 2008
GMC Sierra 3500 HD WT 2009
GMC Sierra 3500 HD WT 2010