FASS DIFSRAM2001 Drop-In Diesel Fuel System for 03-07 Ram 2500/3500 5.9L Cummins

Vehicle Fitment

• 2003-2007 Dodge Ram 2500 5.9L Cummins Diesel
• 2003-2007 Dodge Ram 3500 5.9L Cummins Diesel

Fitment Notes

• Fuel filtration system only -- does NOT include a lift pump (retains stock fuel pump)
• Mounts in factory water separator location -- true bolt-in, plug-and-play
• No cutting, welding, wiring, or tuning changes required
• May NOT work with aftermarket fuel tanks larger than stock -- verify clearance before ordering
• Retains full functionality of factory water-in-fuel (WIF) sensor
• Installation time: approximately 1 hour or less

Features

• Removes over 99% of free and emulsified water (3rd-party verified)
• Filters debris down to 2 microns
• Separates entrained air and vapor from diesel fuel
• Increases fuel lubricity up to 10% by removing entrained air
• Extreme Water Separator (XWS) acts as a dam at capacity to prevent injection system damage
• Performance Radius Cuts (PRC) prevent air reintroduction and eddy currents
• Optimizes fuel economy, restores horsepower, and sharpens throttle response
• Same filtration technology as FASS Titanium Signature Series and Industrial Series

Specifications

• Part Number: DIFSRAM2001
• Series: FASS Drop-In Series
• Type: Diesel fuel filtration system
• Flow Rate: Stock
• Filtration: 2 microns
• Water Separation: Over 99%
• Air Separation: Yes
• Fuel Pump Included: No (retains factory pump)
• Fuel Pressure Regulator Included: No
• Mounting Bracket Included: Yes
• Wiring Harness Included: Yes
• Fuel Line Included: Yes
• Installation Hardware Included: Yes
• Quantity: Sold as a complete kit
• UPC: 850044137480
• Made in Marthasville, Missouri, USA
• Warranty: FASS limited lifetime

Included Components

• FASS Drop-In Series fuel filtration housing with Extreme Water Separator (XWS)
• Performance Radius Cut (PRC) fittings
• Fuel lines
• Wiring harness
• Mounting bracket
• All installation hardware
• Installation instructions

Product Description

The FASS DIFSRAM2001 is a Drop-In Series diesel fuel filtration system engineered specifically for the 2003-2007 Dodge Ram 2500 and 3500 with the 5.9L Cummins diesel engine. Without proper fuel filtration, the 5.9L Cummins' high-pressure common rail injection system is prone to excessive wear from water, air, and debris contamination -- failures that can cost thousands in repairs. The Drop-In Series removes over 99% of free and emulsified water (third-party verified), separates entrained air and vapor, and filters particulate down to 2 microns, protecting the injection system from premature failure.

FASS's exclusive Extreme Water Separator (XWS) technology acts as a safety dam when water capacity is reached, shutting down the truck before contaminated fuel can destroy injection components. Performance Radius Cuts (PRC) within the aluminum housing create smooth fuel flow paths that prevent air reintroduction and eddy currents -- a technology exclusive to FASS Drop-In systems. The system mounts directly in the factory water separator location for a true plug-and-play installation in under an hour with no cutting, welding, or tuning modifications. May not be compatible with aftermarket oversized fuel tanks -- verify clearance before ordering. Backed by FASS's limited lifetime warranty.