Wehrli 100362 Fuel Filter Housing Kit | 2020-2024 Silverado/Sierra 2500HD/3500HD 6.6L Short Bed

Features:

• Fits L5P Duramax short bed trucks
• Replaces factory cartridge-style fuel filter
• Includes Donaldson 4-micron spin-on filter
• Increases fuel filter capacity and lifespan
• Gray anodized billet aluminum filter base
• Maintains flow across PTC heating element
• OEM-style quick disconnect fittings included
• No tuning required for installation
• 1/8" NPT port for fuel pressure monitoring
• WCFab logo engraved on filter base
• Not compatible with L5D medium duty trucks

Premium Fuel Filter Housing Kit for Short Bed L5P Duramax Trucks

If you're tired of dealing with the stock fuel filter on your 2020–2024 L5P Duramax, you're not alone. The cartridge-style setup isn’t exactly known for its convenience or filter capacity, and it can make maintenance more frustrating than it needs to be. That’s where the Wehrli Fuel Filter Housing Kit steps in. Designed specifically for short bed Silverado and Sierra 2500HD/3500HD trucks, this kit gives you a clean and reliable way to upgrade to a spin-on canister filter—without overcomplicating the install. Wehrli uses a CNC-machined, billet aluminum filter base that's not only stronger than the factory plastic unit, but also finished in a sharp gray anodizing with an engraved WCFab logo for that custom touch under the hood. It's a direct bolt-on replacement, using the same mounting location and OEM-style quick disconnect fittings, so there’s no custom fabrication or extra plumbing required. You can install it in your driveway with basic tools and a little patience.

Includes Spin-On Fuel Filter and Water Separator

One of the most useful upgrades here is the switch to a Donaldson 4-micron spin-on fuel filter and water separator, which comes included in the kit. This filter provides better capacity and filtration than the stock setup, allowing you to go longer between changes without sacrificing fuel system protection. Whether you’re racking up miles on the highway or towing heavy loads, that extra filtration goes a long way in protecting your injectors and fuel pump. Cold weather performance wasn’t overlooked either. The kit is engineered to maintain fuel flow across the factory PTC heating element, so you won’t run into cold start issues when the temperature drops. It’s compatible with completely stock trucks and doesn’t require any tuning or additional modifications to work. Plus, if you're running a fuel pressure sensor, Wehrli includes a 1/8" NPT port for easy integration—another small detail that makes a big difference for anyone keeping an eye on their fuel system.

Fits: 2020, 2021, 2022, 2023, 2024 GM 6.6L Duramax Short Bed

Fitment Note: NOT COMPATIBLE WITH 4500/5500 MEDIUM DUTY TRUCKS EQUIPPED WITH L5D DURAMAX

Reference:

• Replaces GM Part #'s: 13543066, 13539109
• Protected under US Patent No. D978,917