Sale

Heating and Cooling Overflow Tanks and Catch Cans

Wehrli

Wehrli Coolant Tank OEM Placement for 07.5-10 Duramax LMM Gun Metal Gun Metal 100646-GM

$489.00 $474.33 Save $14.67

SKU: W005 100646-GM

In Stock
In Stock
Ships by Jun 20
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Wehrli Custom Fabrication Coolant Tank Kit is a direct OEM replacement for the 2007.5-2010 Chevrolet and GMC 2500HD/3500HD trucks equipped with the 6.6L Duramax LMM engine. It replaces the factory plastic coolant reservoir, which is prone to degradation and discoloration, with a fabricated aluminum tank that enhances under-hood aesthetics. The kit includes a black anodized CNC machined billet aluminum cap, all necessary mounting hardware, an overflow hose, and a serviceable low coolant sensor with a sight glass for easy level checks. Designed for easy installation, it utilizes OEM mounting points and requires no modifications for stock trucks.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100646-GM

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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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