Heating and Cooling› Thermostats, Housings and Fillers
Wehrli
Wehrli L5P Duramax Thermostat Housing - WCFab Grey
SKU: W005 WCF100188-GRY
Moderate — 2–4 hours
Description
Part #: WCF100188-GRY
This Thermostat Housing for 2017-2025 6.6L Duramax is a direct replacement upgrade for the unsightly OEM part. Comes powder coated in your choice of color to complement other WCFab upgrades such as our Intake Kit, Intercooler Piping, Upper Coolant Pipe, and Coolant Tank.
L5P Duramax Thermostat Housing WCFab Grey
MIA's Description
This thermostat housing is a direct replacement for the OEM part, offering a cleaner look for your engine bay. It is powder-coated in WCFab Grey.
Fitment
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Specifications
| Brand | Wehrli |
| Part Number | W005 WCF100188-GRY |
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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