{"product_id":"fass-drop-in-series-diesel-fuel-system-for-ram-2003-2024-cummins-6-7l","title":"FASS Drop-In Series Diesel Fuel System for RAM 2003-2024 Cummins 6.7L","description":"\u003cp\u003eFASS Drop-In Series Fuel System\u003cbr\u003e\nFor 2003 to 2024 Dodge\/RAM, Cummins 5.9L \u0026amp; 6.6L\u003cbr\u003e\nTHIS IS NOT A LIFT PUMP! This is an air separation\/filtration system that utilizes your factory lift pump.\u003c\/p\u003e\n\n\u003cp\u003eOther Notes: 2003-2007 RAM 2500 \u0026amp; RAM 3500 5.9L Cummins (WITH AN IN-TANK LIFT PUMP). 2003-2004.5 trucks MUST have been retrofitted with an in-tank lift pump in order to utilize this product.\u003c\/p\u003e\n\n\u003cp\u003eInstallation of this kit on a cab and chassis may require modifications. Drop-In Fuel Systems are a plug-and-play filtration upgrade and are not compatible with our Fuel Sump Kit. No additional items are needed for installation. This plug-and-play filtration system retains the Cummins OEM in-tank fuel pump.\u003c\/p\u003e\n\n\u003cp\u003eOverview\u003cbr\u003e\nThe FASS Drop-In Series Diesel Fuel System is engineered to be the most effective filtration solution for the 5.9L \u0026amp; 6.6L Cummins. Backed by a limited lifetime warranty, it protects your engine from issues caused by fuel contamination.\u003c\/p\u003e\n\n\u003cp\u003eIf you drive a Ram with a Cummins diesel engine and want better fuel filtration, improved reliability, and injector protection without adding an external frame-mounted pump, the FASS Drop-In Series Fuel System is the perfect solution.\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct replacement for the factory engine fuel filter, the Drop-In Series delivers cleaner fuel, better water separation, and consistent fuel supply while retaining a factory-style installation. It’s ideal for stock and lightly modified trucks that demand long-term reliability without added complexity.\u003c\/p\u003e\n\n\u003cp\u003eKey Benefits\u003cbr\u003e\nReliability, Simplicity, Protection: Engineered for long-term performance.\u003cbr\u003e\nSupports Stock \u0026amp; Modified Cummins: Plenty of fuel for stock and modified GMCs and Chevrolets.\u003cbr\u003e\nInjector Protection: Will triple the life of your injectors and injection pump.\u003cbr\u003e\nFASS Filtration: Optimizes combustion, restores HP, maximizing MPG (results vary).\u003cbr\u003e\nLimited Lifetime Warranty: Register your FASS system, and you’re covered.\u003cbr\u003e\nAdvanced In-Tank Filtration Technology\u003cbr\u003e\nWater Separation: 3rd-party proven to eliminate over 99% of water.\u003cbr\u003e\nAir\/Vapor Removal: Eliminates entrained air and vapor that damages injection systems and reduces power\/efficiency.\u003cbr\u003e\n2 Micron Absolute Filtration – Microglass: Removes debris smaller than OEM filters can catch.\u003cbr\u003e\nMass Flow Return (MFR): Constantly “polishes” your diesel by sending unused fuel back through the filters, so your tank always holds clean, conditioned fuel.\u003cbr\u003e\nImproves Reliability: Extends injection system life 3x.\u003cbr\u003e\nMaximized Horsepower: Improved fuel atomization, restored injection timing, resulting in a more balanced engine.\u003cbr\u003e\nOptimized MPG: More efficient\/complete combustion (results will vary).\u003cbr\u003e\nPeace of Mind: The Extreme Water Separator acts as a fail-safe in cases of extreme fuel contamination, preventing costly repairs and downtime.\u003cbr\u003e\nExtreme Cold Weather Confidence: Dependable starts and operation in extreme cold, especially with the FASS Drop-In Fuel Heater Kit.\u003cbr\u003e\nCleaner Operation: Improved fuel quality and combustion reduces DPF regens and soot output.\u003cbr\u003e\nKey Features\u003cbr\u003e\nThe only drop-in 5.9L \u0026amp; 6.6L Cummins filtration system that retains the full functionality of the water-in-fuel sensor!\u003cbr\u003e\nThe only drop-in 5.9L \u0026amp; 6.6L Cummins filtration system with air separation!\u003cbr\u003e\n100% drop-in, no additional modifications needed.\u003cbr\u003e\nRetains the factory in-tank lift pump.\u003cbr\u003e\nPerformance Radius Cuts (PRC): Smoother internal fuel flow, no sharp restrictions.\u003cbr\u003e\n2-micron absolute filtration rating: Captures finer debris than OEM filters.\u003cbr\u003e\nRemoves over 99% of water from fuel (3rd party verified).\u003cbr\u003e\nPatented FASS air\/vapor removal process.\u003cbr\u003e\nElectric heater options are available for improved cold weather reliability.\u003cbr\u003e\nLimited Lifetime Warranty (with registration).\u003cbr\u003e\nWhy Choose FASS?\u003cbr\u003e\nAt FASS, we design fuel systems with longevity, reliability, and real-world use in mind. The Drop-In Series is engineered for diesel owners who want proven filtration technology and injector protection—without changing the character of their truck. It’s a smart, dependable upgrade for daily drivers and work trucks alike.\u003c\/p\u003e\n\n\u003cp\u003eVehicle Fitment by Year\u003cbr\u003e\nDodge\/RAM Cummins 6.6L (application-specific fitment required)\u003cbr\u003e\nProduct Manual Downloads\u003c\/p\u003e","brand":"FASS Diesel Fuel Systems","offers":[{"title":"Default Title","offer_id":52914755272997,"sku":"DIFSRAM","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/7603\/4597\/files\/b364d26f-3a47-45bf-8a7b-4b87504348aa.png?v=1785417155","url":"https:\/\/8balldieselworkz.com\/products\/fass-drop-in-series-diesel-fuel-system-for-ram-2003-2024-cummins-6-7l","provider":"8Ball Diesel Workz","version":"1.0","type":"link"}