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The Wehrli L5P Duramax thermostat housing is a direct replacement for 2017–2025 6.6L Duramax applications, finished in gun metal powder coat to tidy the engine bay and complement other WCFab parts. It installs in place of the OEM housing with no modification and is offered in a range of powder-coat colors so you can match intake kits, intercooler piping, upper coolant pipe and coolant tank for a coordinated, finished engine-bay appearance.
Wehrli L5P Duramax Thermostat Housing - Gun Metal
