FASS DIFSL5P2001 Drop-In Series Diesel 2020-2023 GM
SKU: 36256180837

FASS DIFSL5P2001 Drop-In Series Diesel 2020-2023 GM

Sale price$215.55 Regular price$239.50
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Description

FASS DIFSL5P2001 Drop-In Series Diesel 2020-2023 GMFASS Fuel Systems Drop In Series Diesel Fuel System 2020 2023 GM (DIFSL5P2001) Fits: 2020 2023 Crew Cab Short Bed L5P Duramax Part No: DIFSL5P2001 The FASS Drop In Series Diesel Fuel System was engineered by FASS to be the most effective filtration solution for the L5P Duramax. Backed by our limited lifetime warranty, the Drop In Series Fuel System protects your L5P Duramax from the issues caused by fuel contamination. Without proper fuel filtration,

FASS Fuel Systems Drop-In Series Diesel Fuel System 2020-2023 GM (DIFSL5P2001)
Fits: 2020-2023 Crew Cab Short Bed L5P Duramax
Part No: DIFSL5P2001 The FASS Drop-In Series Diesel Fuel System was engineered by FASS to be the most effective filtration solution for the L5P Duramax.

Backed by our limited lifetime warranty, the Drop-In Series Fuel System protects your L5P Duramax from the issues caused by fuel contamination. Without proper fuel filtration, modern diesel injection systems are prone to excessive wear, which can cost THOUSANDS!

By removing over 99 percent of the water from your diesel fuel, along with entrained air and debris down to 2 Microns, the Drop-In Series System protects the L5P's injection system from premature failure.

Additionally, by eliminating the contaminants mentioned above, our Drop-In Series System for the L5P Duramax optimizes MPG (results will vary), restores horsepower, and sharpens throttle response.

And if reliability, optimized MPG, restored horsepower, and a sharper throttle response isn't enough, this system can be installed in an hour or less! This is a true plug-and-play system, requiring no cutting, wiring, or additional modifications.

Better still, this system requires ZERO tuning changes! Whether your L5P is stock or modified, our Drop-In Series Systems will not require adjusting tunes or clearing any codes. Our industry-leading water removal capabilities (3rd-party proven to exceed 99 percent) are reinforced by the unique design of our Extreme Water Separator (XWS).

If our XWS reaches capacity, it acts as a dam, shutting down your truck and preventing major destruction of fuel system components.

FASS Drop-In Technology was developed to achieve industry-leading filtration with the simplest possible installation—making our Drop-In Series Systems a true bolt-in upgrade.

If you're mechanically inclined, a Drop-In Series Fuel System can be installed in your driveway in less than an hour! But don't let the easy installation fool you—our Drop-In Series Fuel Systems offer the same world-class filtration as our Titanium Signature Series and Industrial Series lines.

Performance Radius Cuts (PRC) are an advanced machining technique used to improve the flow of fuel through the FASS System by creating smooth-flowing cuts within the aluminum housing.

This prevents the reintroduction of air and vapor back into the fuel and prevents eddy currents from forming within the corner of a 90-degree sharp angle. FASS Drop-In Fuel Systems are the only Fuel Air Separation System that incorporates these exclusive Performance Radius Cuts, lesser competitors commonly use T-Bone and square 90-degree fittings that can limit fuel flow, cause restrictions and reintroduce air back into your fuel.
2020-2023 L5P Duramax Drop-In Series System Features:

  • The only drop-in L5P filtration system that retains full functionality of the water-in-fuel sensor!
  • The only drop-in L5P filtration system with air separation!
  • Increases lubricity of the fuel by up to 10 percent by removing entrained air and air vapor.
  • Extends the life of fuel injection system components.
  • Over 99 percent free and emulsified water separation with our Extreme Water Separator technology.
  • 2 Micron absolute filtration rating.
  • 100 percent drop-In, no additional modifications needed.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36256180837

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Pearl W
Draper, US
★★★★★ 5
So Much Fun And Very Informative
Format: Hardcover, Format: Hardcover
This book has been a winner in our house since it arrived. Each page has so many flaps, spins, pulls and movement. So many new words and easy explanations for the kids. The pictures are beautifully designed and each time we look through it we find more details we missed! The book is an excellent purchase and definitely worth every penny!
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Reviewed in the United States on July 17, 2024
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Boise, US
★★★★★ 5
Best Construction Kids book
Format: Hardcover
My nephew can look at this book for hours. It is such a cool book even for adults. It is a more delicate child’s book as their are lots of demonstrations and paper pieces that move. The house across the street is being torn down and rebuilt and he will sit and point to the book and say this is what they are doing today. I think this book is one of my nephews most prized possessions. It’s a great book that can grown with them for a few years. He is only 3 but this could easily engage a 5 or 6 year old. There is lots of details and the book is really well designed.
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Reviewed in the United States on August 7, 2021
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C. C. ARREOLA
Alexandria, US
★★★★★ 5
Well design and good quality
Format: Hardcover
Excelent! My kid loves all this collections
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Reviewed in the United States on August 9, 2025
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Zeb
Grantham, US
★★★★★ 4
Fun, but fragile
Format: Hardcover
This is a cool book, and my 2.5 year old son LOVES it. However it is important to note that it will be destroyed very quickly. There are lots of flaps and moving parts and it is very easy to accidentally rip them off if you try to move one in a way it's not meant for. I ripped more than 1 myself.
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Reviewed in the United States on January 1, 2024
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Dustin Schneider
Houston, US
★★★★★ 5
Great for training
Format: Hardcover
I order these for new salespeople and managers who have no construction experience. They think it's a joke until they start going through it.
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Reviewed in the United States on June 25, 2025

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