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The Wehrli L5P Duramax thermostat housing is a direct replacement for 2017–2025 6.6L Duramax applications, finished in gloss white powder coat to freshen the engine bay and match other WCFab components. It installs in place of the OEM housing with no modification and is offered in several powder-coat finishes so you can coordinate with intake kits, intercooler piping and upper coolant pipe for a clean, integrated look.
Wehrli L5P Duramax Thermostat Housing - Gloss White
