Chevrolet Duramax Thermostat Housing Kit - Wehrli - Sparkle Copper - 2001–2005. This billet top-outlet housing and upper coolant pipe kit replaces the OEM upper radiator hose and return pipe for a cleaner, more serviceable layout.

The upward/forward routing improves access to driver-side fuel components and frees space for larger aftermarket turbochargers. It supports Single and Dual CP3 setups, works with factory VGT turbos, and is required when using race cover or SXE turbos mounted in the valley. Finished in Sparkle Copper with a two-stage powder coat and made in the USA.

Features

• Coolant pipe, silicone boots, and T-bolt clamps included
• Replaces GM 15792832 and 15198345
• CNC-machined billet aluminum thermostat upper housing
• Forward/top outlet routing from thermostat
• 2001–2005 LB7/LLY compatibility; Single/Dual CP3 ready

Have questions or planning a build? Call our Austin, Texas or Los Angeles, California area shops for fitment help, installation, and customization services: 512-982-9393 (TX), 562-981-6800 (CA).

Buying multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

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