The Chevrolet Duramax Thermostat Housing Kit by Wehrli is a must-have for your `01-`05 Duramax LB7/LLY engine. This kit, finished in stunning Bengal Silver, not only replaces the stock upper radiator hose and coolant return pipe but also significantly optimizes your engine bay's layout and functionality.

Crafted from CNC-machined billet aluminum, this kit promises durability and precision. By rerouting the coolant path upwards and forward from the thermostat, it grants improved access to the driver-side fuel system components. This is particularly beneficial for those looking to add larger aftermarket turbochargers or running single and dual CP3 pump setups. The kit is specifically tuned for compatibility with both the OEM VGT-style and race cover or SXE turbochargers. With its inclusion of a coolant pipe, silicone boots, and t-bolt clamps, installation is seamless and straightforward.

Features

• Replaces OEM upper radiator hose and coolant return pipe
• CNC Machined Billet Aluminum for durability
• Compatible with Single and Dual CP3 Pump setups
• Custom Single Stage Powder Coating in Bengal Silver
• Made in the USA

If you're looking for a product that blends superior engineering with aesthetic enhancements, the Wehrli Thermostat Housing Kit is the upgrade your Duramax deserves. For installation or customization services, visit us in Austin, Texas or the Los Angeles, California area. For any inquiries, please contact us directly at 512-982-9393 (TX) or 562-981-6800 (CA). If you are considering purchasing multiple items, please contact us for potential shipping discounts. We offer installation at both locations.

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