{"title":"2020-2026 GM 2500HD\/3500HD 6.6L L5P Duramax Lift Pumps \u0026 Filters","description":"\u003cdiv\u003e\n\u003cinput id=\"post-1\" class=\"read-more-state\" type=\"checkbox\"\u003e\n\u003cp class=\"read-more-wrap\"\u003e\u003cspan class=\"read-more-target\"\u003eA fuel lift pump is a must-have upgrade for any 2020-2026 GM 6.6L Duramax L5P that needs improved fuel flow, pressure, and overall performance. Lift pumps help ensure a steady supply of fuel to your engine, especially in high-demand situations like towing, hauling, or extreme off-roading. Upgrading to a performance lift pump not only boosts power but also protects your fuel system from cavitation and other fuel delivery issues. Along with these lift pumps, we also carry a selection of high-quality fuel filters that help keep your engine running smoothly. These filters effectively remove contaminants and debris, ensuring clean only fuel reaches your engine. \u003cspan class=\"headerspam\"\u003e\u003cstrong\u003eGM Duramax Fitments:\u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM 6.6L Duramax.\u003c\/span\u003e \u003cspan class=\"headerspam\"\u003e\u003cstrong\u003eSubmodel Fitments:\u003c\/strong\u003e WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali.\u003c\/span\u003e \u003cspan class=\"headerspam\"\u003eSome exceptions apply, please see individual product pages for specific fitments.\u003c\/span\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003clabel class=\"read-more-trigger\" for=\"post-1\"\u003e\u003c\/label\u003e\n\u003c\/div\u003e","products":[{"product_id":"xws-3002xl-fass-fuel-systems-extreme-water-separator-filter","title":"FASS XWS3002XL Extreme Water Separator Filter | Universal","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasily Replaces Your FASS Diesel Fuel Separator's Water Separator\u003c\/li\u003e\n\u003cli\u003eShould be Replaced Every 30,000 Miles\u003c\/li\u003e\n\u003cli\u003eFits newer HD, Titanium, and Platinum Series systems\u003c\/li\u003e\n\u003cli\u003eEasy, direct-fit replacement\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eReplaces Your FASS Fuel System Water Separator\u003c\/h4\u003e\n\u003cp\u003eIf your truck has the FASS Titanium or Platinum Series Diesel Fuel Separator equipped, you'll want to replace the water separated roughly every 30,000 miles for the best performance possible. Fortunately, FASS makes these easy direct-fit replacement filters for the necessary maintenance. When your fuel system runs clean it's much more efficient and powerful, and removing containment while feeding your engine purified fuel will help your truck run smoothly for many years to come. These water separators are even better than the original because they're rated to filter out your fuel up to 2 microns. As part of an innovative design, this product no longer has a drain because the actual filter built into the system is what traps the water. This will ultimately help your engine last longer and run better on any adventure due to the new filtration design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Universal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e The new XWS-3002XL MUST be used in conjunction with the PF-3001XL, the new filters cannot be used in combination with the FF-3003\/FF-3010 or FS-1001\/FS-1020\u003c\/p\u003e","brand":"Fass Fuel systems","offers":[{"title":"Default Title","offer_id":49526698770716,"sku":"FASXWS3002XL","price":34.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/XWS3002XL_2001.jpg?v=1722363171"},{"product_id":"wehrli-100361-fuel-filter-housing-17-21-gm-6-6l-duramax-long-bed","title":"Wehrli 100361 Fuel Filter Housing | 2020-2024 GM 6.6L Duramax Long Bed \/ 2017-2019 Short Bed","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2017–2019 Duramax and 2020–2024 long bed trucks\u003c\/li\u003e\n\u003cli\u003eReplaces factory cartridge-style fuel filter\u003c\/li\u003e\n\u003cli\u003eIncludes Donaldson 4-micron spin-on filter\u003c\/li\u003e\n\u003cli\u003eIncreases fuel filter capacity and lifespan\u003c\/li\u003e\n\u003cli\u003eBillet aluminum base with gray anodized finish\u003c\/li\u003e\n\u003cli\u003eMaintains flow across PTC heating element\u003c\/li\u003e\n\u003cli\u003eQuick disconnect fittings for easy installation\u003c\/li\u003e\n\u003cli\u003eNo tuning or modifications required\u003c\/li\u003e\n\u003cli\u003e1\/8\" NPT port for pressure monitoring\u003c\/li\u003e\n\u003cli\u003eEngraved WCFab logo on filter base\u003c\/li\u003e\n\u003cli\u003eReplaces multiple GM part numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHigh-Quality Fuel Filter Housing by Wehrli\u003c\/h4\u003e\n\u003cp\u003eIf you’re running a 2017–2019 short bed or a 2020–2024 long bed Duramax and you’re ready to ditch the stock fuel filter setup, the Wehrli Fuel Filter Housing is exactly the kind of upgrade you’ll wish you had done sooner. The factory cartridge-style filter might get the job done, but it’s not known for capacity, ease of service, or long-term durability. Wehrli’s billet filter housing addresses all of that with a well-thought-out design that’s easy to install and built to last. This kit replaces the factory filter housing with a CNC-machined billet aluminum base finished in a sleek gray anodizing, complete with the WCFab logo engraved on top. It’s a clean-looking piece that mounts in the exact same location as the OEM unit and uses factory-style quick disconnect fittings, so there’s no guesswork or custom fab work involved. Everything lines up just like it should, making this a great weekend upgrade whether you’re a seasoned DIYer or just looking for a bolt-on improvement.\u003c\/p\u003e\n\u003ch4\u003eHigh-Quality Construction \u0026amp; Design\u003c\/h4\u003e\n\u003cp\u003eThe real benefit comes with the included Donaldson 4-micron spin-on filter and water separator. Compared to the stock cartridge, this setup offers increased filter capacity and better debris capture, which means more miles between changes and improved protection for your high-pressure fuel system. It’s also easier to service, no awkward caps or special tools, just a straightforward spin-on replacement when it’s time. One of the standout features is how Wehrli’s design retains the factory PTC heating element flow path, so your truck won’t lose any cold-weather capability. That’s an important detail for owners in northern climates who need reliable starts when temps drop. You also get a 1\/8\" NPT port built right into the base for fuel pressure monitoring, which is a nice bonus if you're planning to run a gauge or just want the option down the line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2017, 2018, 2019 GM 6.6L Duramax Short and Long Bed\u003c\/li\u003e\n\u003cli\u003e2020, 2021, 2022, 2023, 2024 GM 6.6L Duramax Long Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIF YOU HAVE A 2023+ REGULAR CAB DUALLY, PLEASE USE PART NUMBER \u003ca rel=\"noopener\" title=\"Wehrli 100362 Fuel Filter Housing Kit | 2020-2024 Silverado\/Sierra 2500HD\/3500HD 6.6L Short Bed\" href=\"https:\/\/www.alligatorperformance.com\/products\/wehrli-100362-fuel-filter-housing-kit-17-21-gm-6-6l-duramax-short-bed?_pos=1\u0026amp;_psq=100362\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\"\u003e\u003cstrong\u003eWCF100362\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNOT COMPATIBLE WITH 4500\/5500 MEDIUM DUTY TRUCKS EQUIPPED WITH L5D DURAMAX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wehrli Custom Fab","offers":[{"title":"Default Title","offer_id":49527025467676,"sku":"WCF100361","price":247.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/WCF100361_20Fule_20Filter_20Housing_20Kit_2000.jpg?v=1722363072"},{"product_id":"wehrli-100362-fuel-filter-housing-kit-17-21-gm-6-6l-duramax-short-bed","title":"Wehrli 100362 Fuel Filter Housing Kit | 2020-2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P Short Bed","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits L5P Duramax short bed trucks\u003c\/li\u003e\n\u003cli\u003eReplaces factory cartridge-style fuel filter\u003c\/li\u003e\n\u003cli\u003eIncludes Donaldson 4-micron spin-on filter\u003c\/li\u003e\n\u003cli\u003eIncreases fuel filter capacity and lifespan\u003c\/li\u003e\n\u003cli\u003eGray anodized billet aluminum filter base\u003c\/li\u003e\n\u003cli\u003eMaintains flow across PTC heating element\u003c\/li\u003e\n\u003cli\u003eOEM-style quick disconnect fittings included\u003c\/li\u003e\n\u003cli\u003eNo tuning required for installation\u003c\/li\u003e\n\u003cli\u003e1\/8\" NPT port for fuel pressure monitoring\u003c\/li\u003e\n\u003cli\u003eWCFab logo engraved on filter base\u003c\/li\u003e\n\u003cli\u003eNot compatible with L5D medium duty trucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePremium Fuel Filter Housing Kit for Short Bed L5P Duramax Trucks\u003c\/h4\u003e\n\u003cp\u003eIf you're tired of dealing with the stock fuel filter on your 2020–2024 L5P Duramax, you're not alone. The cartridge-style setup isn’t exactly known for its convenience or filter capacity, and it can make maintenance more frustrating than it needs to be. That’s where the Wehrli Fuel Filter Housing Kit steps in. Designed specifically for short bed Silverado and Sierra 2500HD\/3500HD trucks, this kit gives you a clean and reliable way to upgrade to a spin-on canister filter, without overcomplicating the install. Wehrli uses a CNC-machined, billet aluminum filter base that's not only stronger than the factory plastic unit, but also finished in a sharp gray anodizing with an engraved WCFab logo for that custom touch under the hood. It's a direct bolt-on replacement, using the same mounting location and OEM-style quick disconnect fittings, so there’s no custom fabrication or extra plumbing required. You can install it in your driveway with basic tools and a little patience.\u003c\/p\u003e\n\u003ch4\u003eIncludes Spin-On Fuel Filter and Water Separator\u003c\/h4\u003e\n\u003cp\u003eOne of the most useful upgrades here is the switch to a Donaldson 4-micron spin-on fuel filter and water separator, which comes included in the kit. This filter provides better capacity and filtration than the stock setup, allowing you to go longer between changes without sacrificing fuel system protection. Whether you’re racking up miles on the highway or towing heavy loads, that extra filtration goes a long way in protecting your injectors and fuel pump. Cold weather performance wasn’t overlooked either. The kit is engineered to maintain fuel flow across the factory PTC heating element, so you won’t run into cold start issues when the temperature drops. It’s compatible with completely stock trucks and doesn’t require any tuning or additional modifications to work. Plus, if you're running a fuel pressure sensor, Wehrli includes a 1\/8\" NPT port for easy integration, another small detail that makes a big difference for anyone keeping an eye on their fuel system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax Short Bed\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e NOT COMPATIBLE WITH 4500\/5500 MEDIUM DUTY TRUCKS EQUIPPED WITH L5D DURAMAX\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplaces GM Part #'s: 13543066, 13539109\u003c\/li\u003e\n\u003cli\u003eProtected under US Patent No. D978,917\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wehrli Custom Fab","offers":[{"title":"Default Title","offer_id":49527026516252,"sku":"WCF100362","price":247.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/WCF100362_20Fuel_20Filter_20Housing_20Kit_2000.jpg?v=1722363074"},{"product_id":"fleece-fpe-l5p-ffba-20-fuel-filter-upgrade-kit-20-22-gm-6-6l-duramax-2500hd-3500hd-l5p","title":"Fleece FPE-L5P-FFBA-20 Fuel Filter Upgrade Kit | 2020-2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplaces factory cartridge-style fuel filter\u003c\/li\u003e\n\u003cli\u003eUpgraded spin-on canister style filter\u003c\/li\u003e\n\u003cli\u003eIncludes Donaldson 4-micron fuel filter\u003c\/li\u003e\n\u003cli\u003eImproves filter capacity and service intervals\u003c\/li\u003e\n\u003cli\u003eBillet aluminum filter base with anodized finish\u003c\/li\u003e\n\u003cli\u003eMaintains proper flow across PTC heater\u003c\/li\u003e\n\u003cli\u003eQuick disconnect fittings for OE-style install\u003c\/li\u003e\n\u003cli\u003eIntegrated 1\/8\" NPT port for pressure monitoring\u003c\/li\u003e\n\u003cli\u003eClean, factory-style fit and finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePremium Fuel Filter Upgrade for GM 6.6L Duramax\u003c\/h4\u003e\n\u003cp\u003eIf you've been frustrated with the stock fuel filter setup on your L5P Duramax, you're definitely not alone. The cartridge-style filter used on 2020–2024 Silverado and Sierra HD trucks isn’t exactly known for convenience or long service life. That’s why Fleece came up with a smarter solution. The Fleece Fuel Filter Upgrade Kit gives you a clean, durable, and much more serviceable setup by converting your factory system to use a spin-on canister-style fuel filter. It’s a simple change with big benefits, especially when it comes to filtration performance and ease of maintenance. At the heart of the kit is Fleece’s anodized billet aluminum filter base, which replaces the factory unit without changing the filter’s location. It’s designed to match factory fuel flow and retains full function of the PTC fuel heater, which is a big deal if you live in a cold climate. This isn’t just a cosmetic or convenience mod, it’s engineered to work just like the OEM setup, only better.\u003c\/p\u003e\n\u003ch4\u003eHighly-Efficient Filtration with Simple Install\u003c\/h4\u003e\n\u003cp\u003eInstead of the stock cartridge, the kit includes a Donaldson 4-micron spin-on fuel filter and water separator. Donaldson is well-known for their durability and filtering efficiency, and this one gives you more capacity and longer service intervals right out of the gate. Plus, the spin-on design means you’re not stuck fiddling with plastic caps or specialty tools during filter changes. It’s quicker, cleaner, and just makes more sense for real-world truck use. The install process itself is straightforward, thanks to the included quick disconnect fittings and direct-fit design. Fleece also added a built-in 1\/8-inch NPT port, so you can easily add a fuel pressure sensor without hacking into the system later.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e\u003cspan data-olk-copy-source=\"MessageBody\"\u003eCARB EO# D-834-24\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFits 2020-2024 L5P Duramax Short Bed and 2024 Regular Cab Long Bed.\u003c\/li\u003e\n\u003cli\u003eFor 2020-2024 Crew Cab Long Bed - Use Fleece P\/N: \u003ca href=\"\/products\/fleece-fpe-l5p-ffba-1719-fuel-filter-upgrade-kit-17-22-gm-6-6l-duramax-2500hd-3500hd-l5p?_pos=1\u0026amp;_psq=FPE-L5P-FFBA-1719\u0026amp;_ss=e\u0026amp;_v=1.0\" title=\"Fleece FPE-L5P-FFBA-1719 Fuel Filter Upgrade Kit | 2017-2022 Silverado\/Sierra 2500HD\/3500HD 6.6L L5P\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eFPE-L5P-FFBA-1719\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eFits 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)\u003c\/li\u003e\n\u003cli\u003eFits 2022.5-2024 LZ0 3.0L Duramax; Silverado and Sierra pickup models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e Replaces GM Part #13543066 and #13539109\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FPE-2020-46_FPE-L5P-FFBA-1719_20.pdf\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eInstall Instructions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Fleece Performance Products","offers":[{"title":"Default Title","offer_id":49527130095900,"sku":"FLCFPE-L5P-FFBA-20","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/FPE-L5P-FFBA-1719_1_960x960_77e8c0f4-48c3-40cc-8b61-44c9370c1cc6.webp?v=1742950483"},{"product_id":"fleece-fpe-l5p-ffba-1719-fuel-filter-upgrade-kit-17-22-gm-6-6l-duramax-2500hd-3500hd-l5p","title":"Fleece FPE-L5P-FFBA-1719 Fuel Filter Upgrade Kit | 2017-2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrades to spin-on fuel filter design\u003c\/li\u003e\n\u003cli\u003eIncludes Donaldson 4-micron fuel filter\u003c\/li\u003e\n\u003cli\u003eIncreases filter capacity and change intervals\u003c\/li\u003e\n\u003cli\u003eBillet aluminum base with anodized finish\u003c\/li\u003e\n\u003cli\u003eMaintains flow across PTC heating element\u003c\/li\u003e\n\u003cli\u003eQuick disconnect fittings for easy install\u003c\/li\u003e\n\u003cli\u003e1\/8\" NPT port for pressure sensor\u003c\/li\u003e\n\u003cli\u003eInstalls in place of stock filter base\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHigh-Quality Fuel Filter Upgrade Kit by Fleece\u003c\/h4\u003e\n\u003cp\u003eIf you’ve ever wrestled with the factory fuel filter setup on your L5P Duramax, you know it’s not exactly built for convenience, or long-term performance. The Fleece Fuel Filter Upgrade Kit is a smart, straightforward solution that swaps out the stock cartridge filter for a more durable and service-friendly spin-on canister style. Designed for 2017–2019 models, and select 2020+ long bed configurations, this kit gives you better filtration, longer intervals between changes, and a cleaner, more efficient layout that makes fuel maintenance a breeze. At the heart of the upgrade is Fleece’s anodized billet aluminum filter base, which is built to bolt right into the stock location using factory-style quick disconnect fittings. No need for custom lines or hacked-together fittings, everything locks in clean and fits like it should. The billet base is also engineered to maintain the correct fuel path across the PTC heating element, so cold weather performance remains fully intact. That means no compromise in winter starts or system function, just better reliability across the board.\u003c\/p\u003e\n\u003ch4\u003eFilters Down to 4 Microns\u003c\/h4\u003e\n\u003cp\u003eThe included Donaldson 4-micron fuel filter and water separator offers a significant step up in filtration compared to the factory unit. It captures smaller particles and provides greater capacity, helping protect sensitive injection components while also giving you more mileage between filter changes. And because it’s a canister-style filter, replacements are quicker, cleaner, and don’t require specialty tools or messy disassembly. Fleece also integrated a 1\/8\" NPT port into the filter base, giving you the option to easily monitor fuel pressure if you're running a gauge or plan to install one down the line. It’s a small but thoughtful touch that makes this kit future-proof, especially for those planning additional upgrades or tracking system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e\u003cspan data-olk-copy-source=\"MessageBody\"\u003eCARB EO# D-834-24\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFits 2017–2019 L5P Duramax (Short and Long Bed)\u003c\/li\u003e\n\u003cli\u003eFits 2020-2024 L5P Duramax Crew Cab Long Bed. For 2024 Regular Cab Long Bed models, use Part Number \u003cstrong\u003e\u003ca href=\"\/products\/fleece-fpe-l5p-ffba-20-fuel-filter-upgrade-kit-20-22-gm-6-6l-duramax-2500hd-3500hd-l5p?_pos=1\u0026amp;_psq=FPE-L5P-FFBA-20\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003eFPE-L5P-FFBA-20\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e Replaces GM Part # 23149526, 84711317, 84996837\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FPE-2020-46_FPE-L5P-FFBA-1719_20.pdf\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eInstall Instructions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Fleece Performance Products","offers":[{"title":"Default Title","offer_id":49527130161436,"sku":"FLCFPE-L5P-FFBA-1719","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/FPE-L5P-FFBA-1719_1_960x960_0eff0de4-2bb7-40ed-8a39-2cc2ae39821e.webp?v=1742950609"},{"product_id":"fass-difsl5p1001-drop-in-series-fuel-lift-pump-17-23-gm-6-6l-duramax","title":"FASS DIFSL5P1001 Drop-In Series Fuel System | 2017-2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits L5P Duramax applications\u003c\/li\u003e\n\u003cli\u003eTrue drop-in, no cutting or wiring required\u003c\/li\u003e\n\u003cli\u003eRemoves over 99% of water from fuel\u003c\/li\u003e\n\u003cli\u003e2 micron absolute filtration rating\u003c\/li\u003e\n\u003cli\u003eEliminates air and vapor from diesel fuel\u003c\/li\u003e\n\u003cli\u003eExtends fuel system and injector life\u003c\/li\u003e\n\u003cli\u003eImproves throttle response and horsepower\u003c\/li\u003e\n\u003cli\u003eOptimizes MPG with cleaner fuel delivery\u003c\/li\u003e\n\u003cli\u003eInstalls in under an hour\u003c\/li\u003e\n\u003cli\u003eWorks with factory or billet filter caps\u003c\/li\u003e\n\u003cli\u003eKeeps factory in-tank lift pump in place\u003c\/li\u003e\n\u003cli\u003e50-state legal – CARB EO # D-713-3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHigh-Performance Fuel System for GM 6.6L Duramax\u003c\/h4\u003e\n\u003cp\u003eIf you’re driving an L5P Duramax, you already know the factory fuel filtration system leaves a lot to be desired, especially if you’re running your truck hard, towing regularly, or planning on keeping it long-term. The FASS Drop-In Series Fuel System was built to solve those problems without overcomplicating the install. It’s the first and only drop-in system designed specifically for the 2017–2024 Silverado and Sierra 2500HD\/3500HD that offers full fuel filtration and air separation, and does it all while retaining your factory in-tank lift pump and water-in-fuel sensor. What really makes this system stand out is the Extreme Water Separator technology. It’s been third-party tested to remove more than 99% of both free and emulsified water, which is a huge deal considering how sensitive today’s high-pressure injection systems are to moisture. And if the filter reaches capacity, it acts as a safeguard, cutting off flow to prevent further damage rather than letting contaminated fuel make its way through your injectors. That kind of built-in protection can save you thousands in repairs down the line.\u003c\/p\u003e\n\u003ch4\u003eHigh-Quality Construction with Impressive Filtration\u003c\/h4\u003e\n\u003cp\u003eThis system also filters down to 2 microns, which is a big improvement over stock and more than enough to trap the fine particles that can wear out pumps, injectors, and regulators. On top of that, it strips air and vapor from the fuel, something most systems completely ignore. Removing that entrained air can increase fuel lubricity by up to 10%, reduce injector noise, and even sharpen throttle response. Some drivers report improved MPG, but even if the numbers stay the same, the drivability and performance gains are hard to miss. Despite the serious performance benefits, FASS made this kit completely plug-and-play. No tuning adjustments, no cutting, no splicing wires, just bolt it in and go. It installs in under an hour for most mechanically inclined owners, and works with either the factory plastic cap or a billet filter cap if you’ve upgraded. Every connection uses OEM-style quick disconnects, so everything fits clean and stays serviceable down the road.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Note:\u003c\/strong\u003e THIS IS NOT A LIFT PUMP! This is an air separation\/filtration system that utilizes your factory lift pump.\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/fassride.com\/wp-content\/uploads\/DIFSL5P1001.pdf\" target=\"_blank\"\u003e\u003cstrong\u003eInstall Instructions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Fass Fuel systems","offers":[{"title":"Default Title","offer_id":49527295443228,"sku":"FASDIFSL5P1001","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/FIFSL2001.jpg?v=1722355516"},{"product_id":"fass-difsl5p2001-drop-in-series-fuel-lift-pump-20-23-gm-6-6l-duramax","title":"FASS DIFSL5P2001 Drop-In Series Fuel System | 2020-2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemoves over 99% of water from fuel\u003c\/li\u003e\n\u003cli\u003e2 micron absolute filtration rating\u003c\/li\u003e\n\u003cli\u003eRetains factory in-tank lift pump\u003c\/li\u003e\n\u003cli\u003eNo cutting, wiring, or tuning required\u003c\/li\u003e\n\u003cli\u003eWorks with factory or billet filter caps\u003c\/li\u003e\n\u003cli\u003eInstalls in under an hour\u003c\/li\u003e\n\u003cli\u003eMaintains factory water-in-fuel sensor function\u003c\/li\u003e\n\u003cli\u003eSeparates air and vapor from diesel fuel\u003c\/li\u003e\n\u003cli\u003eImproves throttle response and engine efficiency\u003c\/li\u003e\n\u003cli\u003ePlug-and-play installation with OEM-style fittings\u003c\/li\u003e\n\u003cli\u003eCompatible with factory fuel tank only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDrop-In Fuel System Upgrade for GM 6.6L Duramax\u003c\/h4\u003e\n\u003cp\u003eIf you’re running a 2020–2024 L5P Duramax and want to protect your fuel system without diving into a complicated install, the FASS Drop-In Series Fuel System is a game-changer. Designed as a true plug-and-play upgrade, this system bolts into the factory water separator location and works with your truck’s OEM in-tank lift pump, not against it. That means no cutting, wiring, or tuning, just better filtration, improved drivability, and long-term protection for your injection system. What sets the Drop-In Series apart is its ability to remove over 99% of both free and emulsified water, thanks to FASS’s advanced Extreme Water Separator (XWS) technology. It's not just filtering large particles, it’s also eliminating the fine water droplets and entrained air that can wreak havoc on high-pressure fuel systems. By stripping air from the fuel, this system actually boosts fuel lubricity by up to 10%, which helps reduce wear on injectors and pumps. It’s a subtle but important upgrade, especially if you're towing heavy, pushing more power, or just want to avoid expensive repairs down the road.\u003c\/p\u003e\n\u003ch4\u003eHigh-Quality Construction \u0026amp; Design\u003c\/h4\u003e\n\u003cp\u003eOne of the standout features is that the system retains the factory water-in-fuel sensor, something most aftermarket options can’t claim. That means you’ll still get accurate warnings if water is present in your diesel, and the OEM fuel heater continues to function just as it should, critical for cold-weather starts. FASS also engineered the system using Performance Radius Cuts (PRC) in the aluminum housing. These smooth, curved passages allow for better fuel flow and eliminate the sharp turns and restrictive fittings found in other setups, reducing backpressure and keeping the fuel flowing freely. This system is ideal for stock or modified trucks and is fully 50-state legal under CARB EO # D-713-3. It installs in less than an hour with basic tools and no special tuning, making it perfect for DIYers or anyone who wants an upgrade without the headache. Just make sure you’re working with a stock-style fuel tank, as this setup isn’t designed for oversized aftermarket tanks or cab-and-chassis applications without modification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation of this kit on a cab and chassis may require modifications.\u003c\/li\u003e\n\u003cli\u003eDrop-In Fuel Systems are a plug-and-play filtration upgrade and are not compatible with FASS' Fuel Sump Kit.\u003c\/li\u003e\n\u003cli\u003eThe Drop-In Series for the L5P Duramax was designed to be mounted in the factory water separator location and may not work with aftermarket fuel tanks that have a greater fuel capacity than the stock fuel tank. You must verify that you have adequate space to mount the Drop-In Series System if you have an aftermarket fuel tank.\u003c\/li\u003e\n\u003cli\u003eTHIS IS NOT A LIFT PUMP! This is an air separation\/filtration system that utilizes your factory lift pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/fassride.com\/wp-content\/uploads\/\/DIFSL5P2001.pdf\" target=\"_blank\"\u003e\u003cstrong\u003eInstall Instructions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Fass Fuel systems","offers":[{"title":"Default Title","offer_id":49527295672604,"sku":"FASDIFSL5P2001","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/FIFSL2001_a354eec5-22a1-4d4d-8579-948fe943e26d.jpg?v=1722355518"},{"product_id":"fass-tsc15180f140g-titanium-signature-series-140gph-fuel-system-2020-2023-gm-sierra-silverado-2500hd-3500hd-duramax-6-6l","title":"FASS TSC15180F140G Titanium Signature Series 140GPH Fuel System | 2020-2023 GM Sierra\/Silverado 2500HD\/3500HD Duramax 6.6L","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e140 GPH flow rating, stock to 700 HP\u003c\/li\u003e\n\u003cli\u003e2-micron absolute Microglass filtration\u003c\/li\u003e\n\u003cli\u003eRemoves over 99% of water from fuel\u003c\/li\u003e\n\u003cli\u003ePatented air and vapor removal process\u003c\/li\u003e\n\u003cli\u003eMass Flow Return continuously polishes fuel\u003c\/li\u003e\n\u003cli\u003eRequires aftermarket tuning for compatibility\u003c\/li\u003e\n\u003cli\u003eWhisper Technology for quiet operation\u003c\/li\u003e\n\u003cli\u003eHeavy-duty bolt-on steel mounting brackets\u003c\/li\u003e\n\u003cli\u003e30,000 mile filter life expectancy\u003c\/li\u003e\n\u003cli\u003eOptional electric fuel heater kits available\u003c\/li\u003e\n\u003cli\u003eBacked by limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGive Your Duramax The Fuel Quality It Deserves\u003c\/h4\u003e\n\u003cp\u003eAnyone who's dealt with a failed injector on a Duramax knows it's not a cheap lesson, and most of the time contaminated or poorly filtered fuel is the real culprit behind it. The FASS Titanium Signature Series is built to make sure that never happens to your 2020-2023 GMC or Chevrolet Duramax, delivering the cleanest, most consistent fuel supply your engine has ever seen. According to FASS, this system can triple the life of your fuel injection system, which is a serious claim, but it's backed by filtration that removes over 99% of water and captures debris far smaller than what your factory filter can catch. That kind of protection matters whether you're daily driving to the job site or pushing your Duramax toward serious horsepower numbers, since this system supports stock trucks all the way up to 700 horsepower builds. Beyond just protecting your injectors, FASS reports drivers commonly see stronger throttle response and improved fuel economy once combustion cleans up, though results will vary by truck and driving style. It's also engineered to handle extreme cold weather with confidence, especially when paired with one of FASS's optional fuel heater kits for the harshest winter mornings. This is the kind of upgrade that pays for itself the first time it prevents an injector failure, and FASS backs that confidence with a limited lifetime warranty when you register your system.\u003c\/p\u003e\n\u003ch4\u003ePrecision Filtration Engineering Built Around Real Diesel Demands\u003c\/h4\u003e\n\u003cp\u003eThe FASS TSC15180F140G Titanium Signature Series is a 140 GPH fuel system engineered specifically for 2020-2023 GMC Sierra and Chevrolet Silverado 2500HD and 3500HD trucks equipped with the 6.6L Duramax engine, and it requires aftermarket tuning to operate correctly. At the core of the system is 2-micron absolute Microglass filtration, which according to FASS removes debris smaller than OEM filtration can catch while also achieving third-party verified removal of over 99% of water from the fuel supply. The system also incorporates FASS's patented air and vapor removal process, addressing entrained air that can damage injection components and rob both power and efficiency if left unaddressed. Mass Flow Return technology continuously cycles unused fuel back through the filtration system, meaning the fuel sitting in your tank stays conditioned and clean rather than degrading over time. Performance Radius Cuts eliminate sharp internal restrictions for smoother fuel flow, while Whisper Technology keeps the pump notably quiet compared to older fuel system designs. The complete system mounts using heavy-duty bolt-on steel brackets and carries an expected filter life of 30,000 miles alongside a rated motor life exceeding 1,000,000 miles. According to FASS, their systems maintain a failure rate below 0.5%, and every Titanium Signature Series system is covered by a limited lifetime warranty once registered with the manufacturer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2020, 2021, 2022, 2023 GM Sierra\/Silverado 2500HD\/3500HD Duramax 6.6L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires aftermarket tuning to be compatible\u003c\/li\u003e\n\u003cli\u003eSupports stock trucks up to modified builds rated to 700 HP\u003c\/li\u003e\n\u003cli\u003eManufacturer states injector life can be tripled, results may vary\u003c\/li\u003e\n\u003cli\u003eFuel economy and power gains are manufacturer estimates, results will vary\u003c\/li\u003e\n\u003cli\u003ePair with a FASS fuel heater kit for extreme cold weather use\u003c\/li\u003e\n\u003cli\u003eFilter life expectancy is approximately 30,000 miles\u003c\/li\u003e\n\u003cli\u003eLimited lifetime warranty requires product registration\u003c\/li\u003e\n\u003cli\u003eManufacturer reports a failure rate below 0.5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.fassride.com\/ts-gmc-duramax-installation-manuals\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eInstall Instructions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"FASS Fuel Systems","offers":[{"title":"Default Title","offer_id":54572046450972,"sku":"FASTSC15180F140G","price":824.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/87bcb9a4-2db0-43e5-be30-18cba8fbc500.png?v=1789502283"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/collections\/GM_Duramax_Fuel_Lift_Pump_Thumb_1.jpg?v=1728495502","url":"https:\/\/www.alligatorperformance.com\/collections\/2020-2026-gm-duramax-66l-l5p-fuel-lift-pumps-filters.oembed","provider":"Alligator Performance","version":"1.0","type":"link"}