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Wehrli Custom Fabrication's billet thermostat housing and upper coolant pipe kit for 2006–2010 Duramax LBZ/LMM reroutes coolant to improve access and fitment for larger turbochargers and driver-side fuel system work. The kit replaces the OEM upper hose and return pipe, includes CNC-machined billet aluminum housing, coolant pipe, silicone boots, and t-bolt clamps, and is offered in custom powder-coat finishes for a finished engine-bay appearance.
Wehrli 06-10 Duramax (LBZ/LMM) Thermostat Housing Kit - Illusion Purple
