Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit - Illusion Blueberry

This is the Wehrli Custom Fabrication Thermostat Housing and Upper Coolant Pipe Kit, designed specifically for 2006-2010 Duramax LBZ and LMM trucks. It replaces the factory upper radiator hose and coolant return pipe, rerouting coolant flow upwards and forward. This updated routing significantly improves access to the driver-side fuel system components, which is a big help when you're working on injectors or the fuel rail. It also creates more room for larger aftermarket turbochargers, making it a popular choice for modified trucks.

The housing itself is CNC machined from billet aluminum, giving it a solid feel and a clean look. The kit includes the necessary coolant pipe, silicone boots, and t-bolt clamps to complete the installation. The custom powder coat finish in Illusion Blueberry not only adds a unique touch to your engine bay but also helps protect the aluminum. This kit is also required if you're installing a race cover style or SXE turbocharger mounted in the valley, and it remains compatible with factory VGT style turbochargers.

This kit fits a range of GM trucks, including the Chevrolet Silverado 2500 HD and 3500 HD, as well as the GMC Sierra 2500 HD and 3500 HD models from 2006 to 2010. It's a well-built upgrade that addresses common access issues and enhances the overall appearance of your Duramax engine bay.