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Heating and Cooling› Overflow Tanks and Catch Cans

Wehrli

Wehrli Coolant Tank OEM Placement for 07.5-10 Duramax LMM Flat Black Flat Black 100646-FB

$489.00 $474.33 Save $14.67

SKU: W005 100646-FB

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Wehrli Coolant Tank OEM Placement for 07.5-10 Duramax LMM Flat Black Flat Black 100646-FB

MIA's Description

Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with Wehrli Custom Fabrication's powder-coated aluminum coolant tank. It features a fabricated aluminum coolant tank with a sight glass, a CNC machined billet aluminum cap, and mounts in the OEM location. It installs easily with basic hand tools. Includes coolant tank, low coolant level sensor, billet anodized cap, overflow hose, coolant level sight glass, and custom color powder coat. Replaces GM Part # 15120611.

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-FB

Videos

Duramax Fabricated Aluminum Coolant Tanks

Duramax Fabricated Aluminum Coolant Tanks
Installing My WC FAB Coolant Tank On My 2020 Duramax! (Cleaning Up The Engine Bay!)

Installing My WC FAB Coolant Tank On My 2020 Duramax! (Cleaning Up The Engine Bay!)
WCFab Coolant Tank Technical Tips

WCFab Coolant Tank Technical Tips
A Cooling System Part That Will Add Style To Your Duramax

A Cooling System Part That Will Add Style To Your Duramax
WCFab LBZ / LMM Duramax Passenger Side Intercooler Outlet Elbow Kit

WCFab LBZ / LMM Duramax Passenger Side Intercooler Outlet Elbow Kit
Installing WC FAB UPPER COOLANT LINE!!

Installing WC FAB UPPER COOLANT LINE!!

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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