Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit - Gloss White

Wehrli Custom Fabrication is known for making well-built parts for Duramax trucks, and this thermostat housing kit is a prime example. If you're working on a 2001-2005 Duramax LB7 or LLY engine, this kit is designed to update your cooling system and make working on other parts of the engine bay much easier. It replaces the stock upper radiator hose that typically crosses over the driver's side valve cover, along with the coolant return pipe.

This kit re-routes your coolant flow upwards and forwards from the thermostat. This change is a big help if you need better access to the driver's side fuel system components, or if you're installing a larger aftermarket turbocharger, especially the race cover or SXE style turbos that mount in the valley. The CNC machined billet aluminum housing not only looks sharp, especially in this gloss white powder coat finish, but it also offers a solid upgrade over the factory plastic. This kit is compatible with both single and dual CP3 pump setups, and it works with factory VGT style turbochargers.

When you open the box, you'll find the billet thermostat housing, the updated coolant pipe, silicone boots, and the necessary t-bolt clamps to get everything connected. This kit replaces GM part numbers 15792832 and 15198345. It's a Made in USA product that's finished with a custom single-stage powder coating for a clean look that lasts.