WCFab L5P

L5P Fabricated Aluminum Upper Coolant Pipe Kit

$169.75

SKU: WCF100541

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Wehrli Custom Fabrication Upper Coolant Pipe Kit offers a significant aesthetic and functional upgrade for 2020-2026 L5P Duramax engines found in Chevrolet Silverado and GMC Sierra 2500/3500 trucks. This kit replaces the factory rubber upper radiator hose with a custom-fabricated aluminum hard pipe, available in a variety of powder-coated finishes to match your build's style. According to the manufacturer, the pipe will fit on stock trucks without requiring any other modifications and can be installed easily using basic hand tools. This product directly replaces GM part numbers 84813629 and 85122989. The use of aftermarket radiators may lead to fitment issues. The kit is compatible with Chevrolet Silverado and GMC Sierra 2500/3500 models equipped with the 6.6L L5P Duramax engine from 2020 through 2026.

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

BrandWCFab L5P
Part NumberWCF100541
CategoryHeating and Cooling

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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.

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