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Heating and Cooling› Overflow Tanks and Catch Cans

Wehrli

Wehrli Coolant Tank OEM Placement for 07.5-10 Duramax LMM Cat Yellow Cat Yellow 100646-CAT

$489.00 $474.33 Save $14.67

SKU: W005 100646-CAT

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

Easy — 1–2 hours

Description

The Wehrli 100646-CAT is a fabricated aluminum coolant tank kit designed to replace the OEM plastic reservoir in 2007.5-2010 LMM Duramax Diesel trucks. It includes a billet aluminum cap, sight glass, mounting hardware, overflow hose, and low coolant sensor.

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 100646-CAT

Videos

Duramax Fabricated Aluminum Coolant Tanks

Duramax Fabricated Aluminum Coolant Tanks

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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