SKU: 77015761595

FASS DIFSL5P1001 Drop-In Series Diesel 2017-2023 GM

Sale price$215.55 Regular price$239.50
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Description

FASS DIFSL5P1001 Drop-In Series Diesel 2017-2023 GMFASS 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: 77015761595

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Erica
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★★★★★ 5
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Good price and didn’t bother my sensitive skin.
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Reviewed in the United States on February 28, 2026
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Caroline
Massapequa, US
★★★★★ 5
Lightweight tinted SPF that looks beautiful on mature skin
I’ve tried a lot of tinted sunscreens, and this one is honestly one of the nicest I’ve used for everyday wear. The Eucerin Tinted Age Defense SPF 50 feels lightweight, blends easily, and gives the skin a healthy natural glow without looking heavy or greasy. The texture is smooth and hydrating, and I was pleasantly surprised by how well the tint adapted to my skin tone. It helped even out my complexion while still looking very natural. On mature skin, that is important because many tinted SPFs can settle into fine lines or look dry after a few hours. This one stayed comfortable and looked fresh throughout the day. I also liked that it layered well over skincare and under makeup without pilling. The finish is more radiant than matte, which gives the skin a healthier and less tired appearance. The addition of hyaluronic acid is a nice bonus because the product feels more moisturizing than many sunscreens I’ve tested. The packaging is practical, easy to use, and perfect for daily use or travel. SPF 50 protection combined with skincare benefits makes this a great all in one daytime product. The tint may not work perfectly for every skin tone since it is designed as a universal shade, but on my skin it blended much better than expected. If you’re hesitating between Eucerin and CeraVe, this one is better for mature skin, a more elegant finish, and higher sun protection since this version offers SPF 50 while many tinted CeraVe options only go up to SPF 30. If you specifically want higher daily protection with a natural radiant finish, this one is definitely the better choice for me.
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Reviewed in the United States on May 6, 2026
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Anonymous
Charlottesville, US
★★★★★ 5
Eucerin sunscreen spf 50
The best sunscreen I’ve ever had. No white cast, no clogging pores. Goes on smooth and silky. No flaking off. Absolutely love it. I’m a dark skinned black woman for reference
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Reviewed in the United States on June 3, 2026
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Chrissy
Houston, US
★★★★★ 5
Eucerin for the Win...Again!
I love this tinted sunscreen. It's so lightweight and blends in really well. Since it blends in, it is good for all shades of skin. It doesn't have a strong smell like a lot of other sunscreens have, so that is a huge bonus. So far I'm really loving it. I am definitely a Eucerin girly. I love all things Eucerin at this point.
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Reviewed in the United States on June 6, 2026
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Umm Zaynab
Whiting, US
★★★★★ 4
A hydrating sunscreen but won’t provide the coverage
I’ve been using CeraVe sunscreen, so that’s my baseline. It’s thicker, slightly pigmented, and very hydrating.. Switching to Eucerin felt like moving from a cozy blanket to a light sheet. It’s definitely thinner and less pigmented, so at first it didn’t give me that same immediate glow or coverage I was used to. That said, on its own, it’s still a good sunscreen. It spreads easily, feels comfortable, and does the job without heaviness. After using it for a while, I’ve kind of settled into a rhythm: • If I want a bit of coverage and that hydrated, supple finish → I reach for CeraVe • If I just need straightforward sun protection → Eucerin works perfectly fine One small downside is the packaging. The pump is convenient, but toward the end, I can already tell there’ll be product left that’s hard to get out since you can’t really squeeze or open it easily. Overall, I’d say Eucerin is a solid, lightweight sunscreen. Just don’t expect that tinted, slightly “makeup-like” effect if you’re coming from something like CeraVe. It’s more of a quiet, reliable everyday option than a multitasking one.
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Reviewed in the United States on March 26, 2026

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