Fleece Performance 17-19 GM Duramax 6.6L L5P Fuel Filter Upgrade Kit
The Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock cartridge style filter to a spin-on canister style filter. The canister filter provides for increased filter capacity and longer change intervals as well as expands your filter options. Our anodized billet aluminum fuel filter base retains the OE sandwich style heating element and includes quick disconnect fittings for an OE quality fit and finish. The new filter base installs in the same location as the stock cartridge filter base. Kit includes: Donaldson fuel filter and water separator Filter base with integral mounting Distribution filter block / filter coupler Quick disconnect fittings Fitment: 2017–2019 L5P Duramax (Short and Long Bed) 2020-2024 L5P Duramax Long Bed Cross-Reference: Replaces GM Part # 23149526, 84711317, 84996837 US PATENT. NO. D978,917
User 1Installation Instructions
Warranty
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2024 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2024 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2024 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2024 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2024 | Chevrolet | Silverado 2500 HD | WT |
| 2020-2024 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2024 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2024 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2024 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2024 | GMC | Sierra 2500 HD | AT4 |
| 2024 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2024 | GMC | Sierra 2500 HD | Denali |
| 2024 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2024 | GMC | Sierra 2500 HD | Pro |
| 2020-2024 | GMC | Sierra 2500 HD | SLE |
| 2020-2024 | GMC | Sierra 2500 HD | SLT |
| 2020-2024 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2024 | GMC | Sierra 3500 HD | Denali |
| 2024 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2024 | GMC | Sierra 3500 HD | Pro |
| 2020-2024 | GMC | Sierra 3500 HD | SLE |
| 2020-2024 | GMC | Sierra 3500 HD | SLT |
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.