SKU: 6112482647

FASS Fuel Systems Drop-In Series Diesel Fuel System 2017-2023 GM (DIFSL5P1001)

Sale price$215.55 Regular price$239.50
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Description

FASS Fuel Systems Drop-In Series Diesel Fuel System 2017-2023 GM (DIFSL5P1001)FASS Fuel Systems Drop In Series Diesel Fuel System 2017 2023 GM (DIFSL5P1001) Fits: 2017 2019 Crew Cab Short Bed L5P Duramax Fits: 2017 2023 Crew Cab Long Bed L5P Duramax Part No: DIFSL5P1001 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

FASS Fuel Systems Drop-In Series Diesel Fuel System 2017-2023 GM (DIFSL5P1001)

  • Fits: 2017-2019 Crew Cab Short Bed L5P Duramax
  • Fits: 2017-2023 Crew Cab Long Bed L5P Duramax

Part No: DIFSL5P1001 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. A

dditionally, 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.
2017-2023 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: 6112482647

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A. Fischer
Dallas, US
★★★★★ 4
No flavor toothpaste with a high price
Style: Unflavored (Pack of 3)
Great product at a not very great price. Maybe you came across this product while searching for unflavored or flavorless toothpaste. Well this does the trick it has no minty flavor to interfere with your morning coffee or your autism. But why does less ingredients mean a higher cost? I’m looking for something bare bones, no taste, and cheaper than the toothpaste they sell at most stores filled with chemicals! Why is this so hard to find?
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Reviewed in the United States on February 15, 2026
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Barb
Alexandria, US
★★★★★ 5
Acid Reflux and LPR
Style: Unflavored (Pack of 1)
I follow a dietician for those who deal with Acid reflux and LPR. Being without flavor especially peppermint, as mentioned by the dietician, can be helpful for some. I have found this to be true with this product. It seems to have helped reduce, or at least not add to, my feeling of throat and mouth burning.
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Reviewed in the United States on May 13, 2026
E
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Emma Shirley
Lexington, US
★★★★★ 5
Best flavor free toothpaste
Style: Unflavored (Pack of 1)
Great for anyone with allergies to mints and fluoride. Keeps teeth fresh.
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Reviewed in the United States on May 28, 2026
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Dylan
Birmingham, US
★★★★★ 5
Good Quality (when purchased)
Style: Unflavored (Pack of 1)
Genuinely the dream toothpaste I've been looking for since I don't like mint, its slightly sweet and the texture has a tiny bit of grit but overall its pretty good I'd say. But please be warned and look at the One star reviews, a lot of them are recent and are mentioning a change in the ingredients one of which said experienced a severe alergic reaction. A decrease in amount of toothpaste per tube, and lesser quality. I bought in bulk months and months prior but the one star reviews I've seen are all recent and oldest usually being from February. Heres hopes they change things back.
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Reviewed in the United States on April 4, 2026
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AFP
Bozeman, US
★★★★★ 3
Doesn't improve breath but good for peeling
Style: Unflavored (Pack of 1)
I got this for two reasons: 1) regular toothpastes make my mucous membranes peel like crazy, 2) intense mint seems to heighten my post-nasal drip. This does not cause any peeling, which is great! The formula does foam up slightly, so it does feel like it is cleaning, if only gently. I'm not noticing a big difference with my post-nasal drip, which is okay, it was probably a long shot. The cons: The texture is quite runny and it seems like I have to use a lot to get the foam I'm used to. I know most people are using this because it doesn't have an intense flavor, but it does nothing to neutralize bad breath. I eat a lot of garlic and drink coffee, so it feels like I'm not freshening my breath much. It's also a bit pricey. I could see this being very valuable to someone with a true mint allergy, though.
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Reviewed in the United States on February 24, 2026

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