Wehrli 06-10 Duramax (LBZ/LMM) Thermostat Housing Kit - Illusion Purple

If you're working on the fuel system or upgrading the turbo on your 2006-2010 Duramax LBZ or LMM, you know how cramped things can get. This Wehrli Custom Fab thermostat housing kit is designed to give you more room to work and a cleaner engine bay look. It replaces the stock upper radiator hose and coolant return pipe with a new, upward-flowing coolant pipe and a CNC machined billet aluminum thermostat housing.

This setup reroutes the coolant flow, which not only helps clear space for larger aftermarket turbochargers, especially race cover or SXE style turbos, but also makes accessing the driver's side fuel system components much easier. The kit includes the coolant pipe, silicone boots, and t-bolt clamps needed for installation. It's compatible with factory VGT style turbochargers, and this version comes in a striking Illusion Purple custom powder coat finish. This kit fits a range of Duramax trucks, including models like the 2007-2010 Chevrolet Silverado 2500 HD and 2007-2010 GMC Sierra 3500 HD.

By updating the coolant routing, you get a more organized engine bay and better access for maintenance or performance upgrades. This is a well-built piece that addresses common challenges when modifying these trucks.