Skip to product information
1 of 9

Fleece Performance 2020 GM Duramax 6.6L L5P w/Short Bed Fuel Filter Upgrade Kit

Fleece Performance 2020 GM Duramax 6.6L L5P w/Short Bed Fuel Filter Upgrade Kit

Regular price $249.00
Sale price $249.00 Regular price
Discounts and shipping calculated at checkout.
  • 60 Day No Hassle Returns
  • Fast & Free Shipping
  • Always In Stock Guarantee
Payment methods
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa

The patented 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 has been designed to retain the proper fuel flow path across the PTC heating element to ensure maximum effectiveness in cold weather. The new filter base installs in the same location as the stock cartridge filter base and includes quick disconnect fittings for an OE quality fit and finish. 

Kit includes: 

  • Donaldson 4 micron fuel filter and water separator (Donaldson P/N P553203)
  • Filter base with integral mounting
  • Distribution filter block / filter coupler
  • Quick disconnect fittings
  • 1/8" NPT port for fuel pressure monitoring

Application Notes

  • FITS 2020-2024 L5P Duramax Short Bed and 2024 Regular Cab Long Bed. 
  • FOR 2020-2024 Crew Cab Long Bed - Use Fleece P/N: FPE-L5P-FFBA-1719. 
  • FITS 2020-2022 LM2 3.0L Duramax; 4 Door, Crew Cab and Extended Cab Pickup as well as Tahoe and Yukon (NOTE: Due to the extended filter capacity, the filter will extend ~2" inches below the frame rail)
  • FITS 2022.5-2024 LZ0 3.0L Duramax; Silverado and Sierra pickup models. 

Cross-Reference

  • Replaces GM Part 13543066, 13539109

*Protected under US Patent No. D978917 and US Trademark Reg. No. 6099981 and 6099979

FPEFPE-L5P-FFBA-20

Shop Safely With Us

Question about this product?

We're happy to help. Send us a message or use our live chat.

Shipping Information

  • Orders are prepared for shipment the same day if received prior to 2 PM EST on business days. Orders received after 2 PM EST will be fulfilled the next business day.
  • Shipping rates are automatically calculated at checkout based on weight, size, location, and carrier availability.
  • We offer free economy ground shipping for the contiguous USA. Expedited shipping options through trusted carriers such as UPS and FedEx are also offered at checkout.
  • High-value orders may require a signature upon delivery. You’ll be notified before shipment if this applies.

Returns, Exchanges and Refunds

  • You have 60 days after delivery to request a return or exchange. Items must be new, uninstalled and in resalable condition.
  • If the return is due to our error, we'll provide a prepaid return label at no cost to you.
  • If the return is due to customer error, you'll be responsible for return shipping costs and a 15% restocking fee may apply.
  • Inspect your package when it arrives and report any shipping damage or missing items within 24 hours of delivery.

Product Warranty

  • If your product issue occurs within 60 days of delivery, and the item is new and uninstalled, start a return through our Return, Exchange and Refund Policy.
  • If your issue occurs after 60 days and the product is covered by a manufacturer warranty, contact the manufacturer directly.
  • If you need assistance, reach out to us, we will guide you through the process.

Payment Information

  • Your payment method is charged when your order is placed. 
  • You may cancel and refund your order at any time by Contacting Us before it ships.
  • If your payment method is declined, your order will not be processed. Please double check your billing details to avoid delays.
  • Refunds are typically processed within 5-7 business days and may take up to 10 business days depending on your financial institution.
  • Some promotional items may not qualify for Buy Now, Pay Later payment options.

EPA, CARB and Disclaimers

  • Certain products are intended for off-road or race use only and may not be legal on public roads.
  • Buyers are responsible for ensuring compliance with all local, state, and federal laws.
  • Products that affect emissions may not be legal in California unless specifically labeled as CARB-exempt.

Items Ineligible for Return

Due to the nature of automotive parts, some items cannot be returned. These include:

  • Custom or special-order products
  • Products marked as "non-returnable" prior to purchase
  • Electronic components (e.g., ECUs, tuners, programmers, controllers, modules, etc)
  • Software
  • Installed or used parts
  • Final sale or clearance items
  • Hazardous materials (e.g., flammable liquids or gases)
  • Coilovers
  • Engine Internals (e.g., pistons, cams, valves, lifters, tensioners, etc) 
  • Turbochargers, Superchargers and Kits
  • Tooling

If you're unsure whether your item is eligible, please Contact Us before ordering.