Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Wehrli L5P Duramax thermostat housing is a direct replacement for 2017–2025 6.6L Duramax applications, finished in illusion blueberry powder coat to tidy the engine bay and complement WCFab styling. It installs in place of the OEM housing without modification and is offered in multiple powder-coat colors so it coordinates with intake kits, intercooler piping and coolant tank components for a polished, matched appearance.
Wehrli L5P Duramax Thermostat Housing - Illusion Blueberry
