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The Wehrli Custom Fab top-outlet billet thermostat housing and upper coolant pipe kit for 2006–2010 Duramax LBZ/LMM replaces the OEM upper radiator hose and coolant return pipe, rerouting coolant upward and forward from the thermostat. That change improves access to driver-side fuel system components, creates room for larger aftermarket turbochargers, and cleans up engine-bay appearance. Available in single or twin CP3 options with custom powder-coat finishes; includes coolant pipe, silicone boots and t-bolt clamps.
Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit - WCFab Grey
