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The Wehrli Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit fits 2006–2010 Duramax LBZ and LMM engines and replaces the OEM upper radiator hose and coolant return pipe routing. The redesign improves access to driver-side fuel components, creates room for larger turbochargers, and updates engine-bay appearance. Options support single or twin CP3 setups and include coolant pipe, silicone boots, and t-bolt clamps, with custom powder-coat finishes.
Wehrli WCFab 2006-2010 Duramax LBZ/LMM Thermostat Housing Kit - Candy Teal
