Sale

Heating and Cooling Thermostats, Housings and Fillers

Wehrli

Wehrli Thermostat Housing Kit 2006-2010 Duramax LBZ LMM Bronze Chrome Bronze Chrome 100420-BC

$539.00 $522.83 Save $16.17

SKU: W005 100420-BC

In Stock
In Stock
Ships by Jun 18
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Wehrli 100420-BC is a Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM 6.6L Duramax engines. It replaces OEM parts to improve access to fuel system components and provide more space for larger turbos. The kit includes a coolant pipe, silicone boots, T-bolt clamps, and a CNC machined billet aluminum thermostat upper housing. It replaces GM Part Numbers: 19330105, 15792824, 25833204, 97361881. Not compatible with 2006-2007 GMC Sierra models.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100420-BC

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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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