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The Wehrli L5P Duramax thermostat housing is a direct replacement for 2017–2025 6.6L Duramax applications, finished in candy red powder coat to clean up the engine bay and match other WCFab upgrades. It installs in place of the OEM housing without modification and is offered in multiple powder-coat colors to coordinate with intake kits, intercooler piping and coolant tank for a finished appearance.
Wehrli L5P Duramax Thermostat Housing - Candy Red
