Sale

Heating and Cooling Overflow Tanks and Catch Cans

Wehrli

Auxiliary Coolant Tank Kit for 2020-2024 Duramax L5P Fine Texture Black

$249.00 $241.53 Save $7.47

SKU: W005 100224-FTB

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Wehrli Custom Fab WCF100224-FTB is an auxiliary coolant tank designed for 2020-2026 GM 6.6L Duramax L5P engines. This fabricated aluminum tank replaces the stock clear plastic reservoir. It features a texture black powder-coated finish, a black anodized billet aluminum cap, and includes an overflow flow fitting, preformed hose, and all necessary mounting hardware. The tank mounts in the OEM location using existing points and is a direct fit for stock trucks, installable with basic hand tools.
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Auxiliary Coolant Tank Kit for 2020-2024 Duramax L5P Fine Texture Black

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100224-FTB

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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