Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Wehrli billet thermostat housing and upper coolant pipe kit replaces the OEM routing on 2006–2010 Duramax LBZ/LMM engines and reroutes coolant upward and forward from the thermostat. That changed routing improves access to driver-side fuel components, creates space for larger aftermarket turbochargers, and tidies engine bay appearance. Kits include coolant pipe, silicone boots, t-bolt clamps and are CNC-machined from billet aluminum with custom powder coat finish.
Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit - Illusion Blueberry
