Heating and Cooling› Thermostats, Housings and Fillers
Wehrli
Wehrli L5P Duramax Thermostat Housing - Gloss White
SKU: W005 WCF100188-GW
Beginner — under 30 min
Description
Part #: WCF100188-GW
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 Gloss White
MIA's Description
This kit serves as a direct replacement for the OEM thermostat housing, offering an upgrade in both functionality and engine bay aesthetics. The custom powder coat finish ensures durability.
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Wehrli |
| Part Number | W005 WCF100188-GW |
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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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