{"product_id":"2017-2025-duramax-6-6l-fass-drop-in-series-diesel-fuel-system","title":"2017-2025 Duramax 6.6L FASS Drop-In Series Diesel Fuel System","description":"\u003ch2 data-start=\"149\" data-end=\"219\"\u003eFASS Drop In Series Diesel Fuel System (2017–2025 GM Duramax L5P)\u003c\/h2\u003e\n\u003cp data-start=\"220\" data-end=\"246\"\u003e\u003cstrong data-start=\"220\" data-end=\"232\"\u003ePart No:\u003c\/strong\u003e DIFSL5P1001\u003c\/p\u003e\n\u003ch3 data-start=\"248\" data-end=\"268\"\u003eIMPORTANT NOTE\u003c\/h3\u003e\n\u003cp data-start=\"269\" data-end=\"399\"\u003e\u003cstrong data-start=\"269\" data-end=\"297\"\u003eTHIS IS NOT A LIFT PUMP.\u003c\/strong\u003e\u003cbr data-start=\"297\" data-end=\"300\"\u003eThis is an \u003cstrong data-start=\"311\" data-end=\"349\"\u003eair separation + filtration system\u003c\/strong\u003e that \u003cstrong data-start=\"355\" data-end=\"398\"\u003eutilizes your factory in-tank lift pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"401\" data-end=\"404\"\u003e\n\u003cp data-start=\"406\" data-end=\"686\"\u003eThe FASS Drop In Series Fuel System is a true plug and play filtration upgrade designed specifically for the L5P Duramax. Modern diesel injection systems are extremely sensitive to fuel contamination and poor filtration can lead to premature wear and failure that costs thousands.\u003c\/p\u003e\n\u003cp data-start=\"688\" data-end=\"906\"\u003eThis system is engineered to remove over \u003cstrong data-start=\"729\" data-end=\"745\"\u003e99% of water\u003c\/strong\u003e from diesel fuel, eliminate \u003cstrong data-start=\"774\" data-end=\"797\"\u003eentrained air\/vapor\u003c\/strong\u003e, and filter debris down to \u003cstrong data-start=\"825\" data-end=\"847\"\u003e2 microns absolute\u003c\/strong\u003e, keeping your L5P fuel system protected and running clean.\u003c\/p\u003e\n\u003cp data-start=\"908\" data-end=\"1085\"\u003eIt installs fast, requires \u003cstrong data-start=\"935\" data-end=\"948\"\u003eno wiring\u003c\/strong\u003e, \u003cstrong data-start=\"950\" data-end=\"964\"\u003eno cutting\u003c\/strong\u003e, and \u003cstrong data-start=\"970\" data-end=\"991\"\u003eno tuning changes\u003c\/strong\u003e. Stock or modified, this system works without triggering codes or requiring tune adjustments.\u003c\/p\u003e\n\u003chr data-start=\"1087\" data-end=\"1090\"\u003e\n\u003ch3 data-start=\"1092\" data-end=\"1105\"\u003eFitment\u003c\/h3\u003e\n\u003cul data-start=\"1106\" data-end=\"1200\"\u003e\n\u003cli data-start=\"1106\" data-end=\"1154\"\u003e\n\u003cp data-start=\"1108\" data-end=\"1154\"\u003e\u003cstrong data-start=\"1108\" data-end=\"1152\"\u003e2017–2019 Crew Cab Short Bed L5P Duramax\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1155\" data-end=\"1200\"\u003e\n\u003cp data-start=\"1157\" data-end=\"1200\"\u003e\u003cstrong data-start=\"1157\" data-end=\"1200\"\u003e2017–2025 Crew Cab Long Bed L5P Duramax\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1202\" data-end=\"1214\"\u003e\u003cstrong data-start=\"1202\" data-end=\"1212\"\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1215\" data-end=\"1398\"\u003e\n\u003cli data-start=\"1215\" data-end=\"1280\"\u003e\n\u003cp data-start=\"1217\" data-end=\"1280\"\u003eInstallation on \u003cstrong data-start=\"1233\" data-end=\"1278\"\u003ecab and chassis may require modifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1281\" data-end=\"1319\"\u003e\n\u003cp data-start=\"1283\" data-end=\"1319\"\u003eNot compatible with fuel sump kits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1320\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1322\" data-end=\"1398\"\u003eMay not work with \u003cstrong data-start=\"1340\" data-end=\"1376\"\u003eoversized aftermarket fuel tanks\u003c\/strong\u003e due to mounting space\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1400\" data-end=\"1403\"\u003e\n\u003ch3 data-start=\"1405\" data-end=\"1434\"\u003eWhy This System Matters\u003c\/h3\u003e\n\u003cp data-start=\"1435\" data-end=\"1657\"\u003eWithout proper filtration and air separation, modern high pressure injection systems are prone to excessive wear. The Drop In Series improves fuel quality by removing contaminants that hurt the fuel system and drivability.\u003c\/p\u003e\n\u003cp data-start=\"1659\" data-end=\"1682\"\u003eBenefits may include:\u003c\/p\u003e\n\u003cul data-start=\"1683\" data-end=\"1796\"\u003e\n\u003cli data-start=\"1683\" data-end=\"1708\"\u003e\n\u003cp data-start=\"1685\" data-end=\"1708\"\u003eCleaner fuel delivery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1709\" data-end=\"1736\"\u003e\n\u003cp data-start=\"1711\" data-end=\"1736\"\u003eSmoother running engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1737\" data-end=\"1766\"\u003e\n\u003cp data-start=\"1739\" data-end=\"1766\"\u003eSharper throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1767\" data-end=\"1796\"\u003e\n\u003cp data-start=\"1769\" data-end=\"1796\"\u003eImproved MPG (results vary)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1798\" data-end=\"1801\"\u003e\n\u003ch3 data-start=\"1803\" data-end=\"1821\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1822\" data-end=\"2391\"\u003e\n\u003cli data-start=\"1822\" data-end=\"1892\"\u003e\n\u003cp data-start=\"1824\" data-end=\"1892\"\u003eRetains full functionality of the \u003cstrong data-start=\"1858\" data-end=\"1890\"\u003efactory water in fuel sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1893\" data-end=\"1946\"\u003e\n\u003cp data-start=\"1895\" data-end=\"1946\"\u003e\u003cstrong data-start=\"1895\" data-end=\"1922\"\u003eAir separation built in\u003c\/strong\u003e (not just filtration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1947\" data-end=\"2025\"\u003e\n\u003cp data-start=\"1949\" data-end=\"2025\"\u003eIncreases fuel lubricity up to \u003cstrong data-start=\"1980\" data-end=\"1987\"\u003e10%\u003c\/strong\u003e by removing entrained air and vapor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2026\" data-end=\"2082\"\u003e\n\u003cp data-start=\"2028\" data-end=\"2082\"\u003eExtends the life of fuel injection system components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2083\" data-end=\"2180\"\u003e\n\u003cp data-start=\"2085\" data-end=\"2180\"\u003eOver \u003cstrong data-start=\"2090\" data-end=\"2132\"\u003e99% free + emulsified water separation\u003c\/strong\u003e with Extreme Water Separator (XWS) technology\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2181\" data-end=\"2217\"\u003e\n\u003cp data-start=\"2183\" data-end=\"2217\"\u003e\u003cstrong data-start=\"2183\" data-end=\"2215\"\u003e2 micron absolute filtration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2218\" data-end=\"2293\"\u003e\n\u003cp data-start=\"2220\" data-end=\"2293\"\u003e100% drop in plug and play design, no additional modifications required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2294\" data-end=\"2335\"\u003e\n\u003cp data-start=\"2296\" data-end=\"2335\"\u003eRetains the factory in-tank lift pump\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2336\" data-end=\"2391\"\u003e\n\u003cp data-start=\"2338\" data-end=\"2391\"\u003eWorks with factory plastic cap or billet filter cap\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2393\" data-end=\"2396\"\u003e\n\u003ch3 data-start=\"2398\" data-end=\"2438\"\u003eExtreme Water Separator Protection\u003c\/h3\u003e\n\u003cp data-start=\"2439\" data-end=\"2655\"\u003eFASS’s Extreme Water Separator (XWS) design helps protect your fuel system from major damage. If the separator reaches capacity, it acts as a safeguard to prevent contaminated fuel from continuing through the system.\u003c\/p\u003e\n\u003chr data-start=\"2657\" data-end=\"2660\"\u003e\n\u003ch3 data-start=\"2662\" data-end=\"2671\"\u003eFAQ\u003c\/h3\u003e\n\u003cp data-start=\"2672\" data-end=\"2889\"\u003e\u003cstrong data-start=\"2672\" data-end=\"2749\"\u003eWill this system create excessive back pressure on the factory lift pump?\u003c\/strong\u003e\u003cbr data-start=\"2749\" data-end=\"2752\"\u003eNo. FASS engineering and testing reduced pressure drop compared to the OEM filtration system by optimizing internal port sizing and flow.\u003c\/p\u003e\n\u003cp data-start=\"2891\" data-end=\"3178\"\u003e\u003cstrong data-start=\"2891\" data-end=\"2944\"\u003eWhy does it retain the OEM water separator setup?\u003c\/strong\u003e\u003cbr data-start=\"2944\" data-end=\"2947\"\u003eBecause the factory water in fuel sensor must remain on the dirty side of the separator to properly detect water before it reaches the clean side. This Drop In design keeps the water in fuel light and fuel heater working correctly.\u003c\/p\u003e","brand":"FASS","offers":[{"title":"Default Title","offer_id":48768235602160,"sku":null,"price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0650\/5136\/1520\/files\/1a200131-2b49-4b55-a60f-aeffaa1366d8.png?v=1769454935","url":"https:\/\/delaneysdiesel.com\/products\/2017-2025-duramax-6-6l-fass-drop-in-series-diesel-fuel-system","provider":"Delaney's Diesel","version":"1.0","type":"link"}