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Heating and Cooling› Thermostats, Housings and Fillers

Wehrli

Thermostat Housing L5P Duramax Bengal Blue

$185.00 $179.45 Save $5.55

SKU: W005 100188-BB

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Wehrli thermostat housing is a direct replacement upgrade for the original thermostat housing on 2017-2025 GM 6.6L L5P Duramax engines. This housing connects coolant hoses and outlets to the engine's thermostat, which regulates coolant flow. It is styled to clean up the engine bay appearance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

BrandWehrli
Part NumberW005 100188-BB

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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