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Heating and Cooling› Thermostats, Housings and Fillers

Wehrli

Wehrli Thermostat Housing Kit 2006-2010 Duramax LBZ LMM Bengal Blue Bengal Blue 100420-BB

$489.00 $474.33 Save $14.67

SKU: W005 100420-BB

In Stock
In Stock
Ships by Jun 19
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Wehrli WCF100420-BB is a Bengal Blue billet thermostat housing and upper coolant pipe kit for 2006-2010 LBZ/LMM 6.6L Duramax engines. It replaces the OEM upper radiator hose and coolant return pipe, improving access to fuel system components and adding room for larger turbochargers. The kit includes the CNC machined billet aluminum thermostat upper housing, coolant pipe, silicone boots, and t-bolt clamps. It is compatible with factory VGT style turbochargers and required for race cover style or SXE turbochargers mounted in the valley. Note: Not compatible with 2006-2007 GMC Sierra due to lower profile hood.

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.

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Specifications

BrandWehrli
Part NumberW005 100420-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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