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The Wehrli L5P Duramax thermostat housing is a direct replacement for 2017–2025 6.6L Duramax applications, finished in Chevy orange powder coat to tidy the engine bay and complement other WCFab pieces. It swaps in for the OEM housing without modification and is offered in multiple powder-coat colors so you can match intake kits, intercooler piping, upper coolant pipe and coolant tank for a coordinated look.
Wehrli L5P Duramax Thermostat Housing - Chevy Orange
