Wehrli 100405 Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit | 2001-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Fits 2001-2005 2500HD/3500HD 6.6L Duramax
• CNC machined billet aluminum thermostat housing
• Includes upper coolant pipe
• Silicone boots and T-bolt clamps included
• Replaces upper radiator hose and return pipe
• Improves access to driver side fuel components
• Adds room for larger aftermarket turbos
• Works with factory VGT style turbochargers
• Required for valley mounted race cover turbos
• Works with Dual CP3 applications
• Cleaner, updated engine bay appearance
• Replaces GM 15792832 and 15198345

Clear The Clutter Off The Driver Side Of Your Duramax

Anyone who has worked on the driver side of an LB7 or LLY knows how much that upper radiator hose gets in the way. The Wehrli 100405 Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit replaces the hose that crosses over the valve cover, along with the coolant return pipe, on 2001-2005 GM Silverado and Sierra 2500HD and 3500HD trucks. The kit changes the coolant routing to an upward and forward layout from the thermostat. That opens up access to the fuel system components on the driver side, which makes service work a lot less of a chore. It also frees up room for a larger aftermarket turbocharger, so you can plan a turbo upgrade without fighting the plumbing. If you are building toward a valley mounted turbo, this kit is required for race cover style and SXE setups. The CNC machined billet aluminum housing also cleans up the look of the engine bay in a way the factory hose never did. It is a smart foundation for any LB7 or LLY that is headed toward more fuel and more boost.

A Billet Housing And Pipe Layout Built For The Valley

The 100405 starts with a CNC machined billet aluminum thermostat upper housing that moves the coolant outlet to the top. A coolant pipe carries coolant forward from the housing, and the kit includes silicone boots and T-bolt clamps to connect it all. Together these parts replace the OEM upper radiator hose and the coolant return pipe, which are listed as GM part numbers 15792832 and 15198345. The kit is compatible with factory VGT style turbochargers, so you do not need to swap turbos to use it. It will also work with Dual CP3 applications from the same manufacturer. It is not compatible with PPE Dual Fueler setups, so check your fuel system before ordering. For owners moving to a race cover style or SXE turbocharger in the valley, this kit is required for the install. It is made for 2001-2005 LB7 and LLY Duramax trucks.

Fitment: 2001, 2002, 2003, 2004, 2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7/LLY

Notes:

• Fits 2001-2005 GM Silverado and Sierra 2500HD/3500HD with the 6.6L Duramax
• Covers LB7 and LLY engines
• Replaces GM part numbers 15792832 and 15198345
• Replaces the upper radiator hose and coolant return pipe
• Includes billet thermostat housing, coolant pipe, silicone boots, and T-bolt clamps
• Compatible with factory VGT style turbochargers
• Required for race cover or SXE style turbochargers mounted in the valley
• Works with Dual CP3 applications from the same manufacturer
• Not compatible with PPE Dual Fueler setups
• California Prop 65 warning applies