2017-2019 Short & Long Bed and 2020-2026 Long Bed L5P Duramax Fuel Filter Housing Kit

A bigger filter, fewer changes

Wehrli's kit swaps the stock cartridge fuel filter on the L5P Duramax for a spin-on canister filter, so there is more filter capacity and longer time between changes.

The anodized billet aluminum base mounts in the stock location and uses the same OEM-style quick-disconnect fuel fittings. Fuel still flows across the PTC heater for cold-weather performance, and a 1/8 in. NPT port lets you monitor fuel pressure. It fits stock trucks with no tuning.

Who it's for

L5P owners who want more fuel filtration and fewer filter changes.

Key specs (per Wehrli)

What's included

• Billet filter base with integral mount
• Donaldson 4 micron fuel filter / water separator
• Distribution block / filter coupler
• Quick-disconnect fittings

Fitment notes

• Fits 2017-2019 Chevrolet Silverado / GMC Sierra 2500 HD / 3500 HD with the L5P, short or long bed, and 2020-2026 long bed trucks.
• Not for 2023-2024 dually trucks; 2023 regular cab dually trucks use WCF100362.
• Not for 4500 / 5500 medium duty trucks with the L5D Duramax.
• Replaces GM part numbers 23149526, 84711317, 84996837 and 364721126.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.