Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit - Candy Red

If you're working on a 2001-2005 Duramax LB7 or LLY engine, this Wehrli Custom Fabrication Thermostat Housing Kit in Candy Red is a solid upgrade. It directly replaces the stock upper radiator hose and coolant return pipe, rerouting coolant flow upwards and forward. This updated routing makes it much easier to get to the driver's side fuel system components, which is a big help during maintenance or upgrades. It also clears out space for larger aftermarket turbochargers, especially the race cover or SXE style turbos that mount in the valley.

This kit is CNC machined from billet aluminum for a strong and well-built housing that's finished in a durable, two-stage candy red powder coat. It comes with the coolant pipe, silicone boots, and t-bolt clamps you need for installation. Beyond the improved access and turbo clearance, this kit also updates the look of your engine bay. It's compatible with both single and dual CP3 pump setups, as well as factory VGT style turbochargers.

Replacing GM part numbers 15792832 and 15198345, this kit offers a clean and efficient solution for your cooling system. It's a great choice if you're looking to improve serviceability and make room for performance modifications on your 2001-2005 Silverado 2500 HD or 3500, or GMC Sierra 2500 HD or 3500.