Engineered specifically for 3rd Generation (2005–2009) Dodge Ram 2500 and 3500 diesel trucks powered by the 5.9L Common Rail or 6.7L 24V Cummins, the FASS Signature Series Adjustable Fuel Lift Pump (FASD07100G) delivers consistent low-pressure fuel flow for owners retaining the OEM canister filter or running custom secondary fuel filtration heads. Factory in-tank lift pumps are prone to pressure drop under heavy towing or performance tuning, pulling a vacuum that aerates diesel fuel and starves the Bosch CP3 high-pressure pump. The FASD07100G eliminates inlet pressure loss by supplying a constant 100 gallons per hour directly to the filtration circuit.

Built with the same continuous-duty electric motor used across FASS Titanium Signature Series units, this standalone pump-only assembly offers mechanical fuel pressure adjustability from 1 to 20 PSI. It incorporates an integrated boost compensation port that utilizes turbo boost pressure to automatically ramp fuel delivery under wide-open throttle, preventing pressure sag when high-pressure rail demand surges. Outfitted with FASS Whisper Technology (FWT) to minimize cab noise, the system features a 1/8" NPT test port for direct gauge connection, as well as an unrestricted BHF-1005 billet bulkhead and 5/8" PTFE suction tube kit that installs cleanly through the factory tank module without cutting the filler neck.

Key Features & Benefits

• Reliable 100 GPH Flow Delivery: Supplies 100 gallons per hour of continuous diesel fuel to easily support stock, daily tow, and mild street performance setups up to 600 horsepower.
• Mechanical Fuel Pressure Adjustability (1–20 PSI): Allows precise manual calibration of pump outlet pressure to match CP3 pump inlet requirements.
• Manifold Boost Compensation Port: Uses intake manifold pressure referencing to dynamically raise low-pressure fuel supply under boost, preventing fuel pressure drop during wide-open throttle.
• Dedicated Diagnostic Pressure Port: Features an integrated 1/8" NPT port for direct installation of a mechanical or electronic fuel pressure gauge.
• FASS Whisper Technology (FWT): Precision gear machining and acoustic dampening significantly lower operating decibels to eliminate motor hum inside the cab.
• High-Flow Billet Tank Bulkhead & Draw Straw: Includes 6061-T6 billet aluminum bulkhead fittings and a 5/8" PTFE suction tube to draw fuel directly from the tank basket without cutting the filler neck.
• Dedicated Pump-Only Design: Engineered specifically for trucks utilizing factory filtration or secondary filter blocks, eliminating the unnecessary expense of duplicate spin-on filters.

Technical Specifications

• Manufacturer Part Number / SKU: FASD07100G (FAS D07 100G / Adjustable Series)
• Truck Platform: 3rd Generation Dodge Ram Heavy Duty (DR/DH Platform)
• Engine Platform: 2005–2007 5.9L 24V Common Rail & 2007.5–2009 6.7L 24V Cummins Turbo Diesel
• Flow Rating: 100 Gallons Per Hour (GPH)
• Operating Pressure: Mechanically Adjustable from 1 to 20 PSI (Factory Preset to ~15–17 PSI)
• Horsepower Rating: Recommended for Stock to 600 HP Applications
• Voltage & Motor Type: 12V DC Continuous-Duty Electric Motor
• Suction Hardware: 6061-T6 Billet Bulkhead Fitting with 5/8" PTFE Suction Tube & 1/2" Return Port
• Auxiliary Ports: Intake Manifold Boost Compensation Port & 1/8" NPT Pressure Gauge Port
• Warranty: FASS Limited Lifetime Warranty (with completed product registration)

Vehicle Fitment & Installation Notes

• 2005–2007 Dodge Ram 2500 (3rd Gen) – 5.9L 24V Common Rail Cummins
• 2005–2007 Dodge Ram 3500 (3rd Gen) – 5.9L 24V Common Rail Cummins
• 2007.5–2009 Dodge Ram 2500 (3rd Gen) – 6.7L 24V Cummins Turbo Diesel
• 2007.5–2009 Dodge Ram 3500 (3rd Gen) – 6.7L 24V Cummins Turbo Diesel
• Fits Model Years: 2005, 2006, 2007, 2007.5, 2008, 2009
• Fitment Notice: Compatible with 3rd Gen trucks equipped with the factory in-tank fuel pump. This is a standalone pump unit and must be plumbed through the OEM fuel filter canister or an aftermarket secondary fuel filter head (such as the S&S Diesel regulated filter head). 2010–2014 4th Gen trucks require part number FASD05100G.
• Installation Tip: Plumb a fuel pressure gauge into the 1/8" NPT port prior to initial calibration; adjust the regulator screw in small increments with the engine idling until target pressure (typically 15–17 PSI) is achieved, tighten the locknut, and connect the boost compensation reference line to the intake manifold.