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 engine, the FASS Signature Series Adjustable Fuel Lift Pump (FASD07250G / FAS D07 250G) provides competition-grade fuel volume for high-horsepower street, sled pulling, and drag racing applications. High-output configurations running large performance injectors, modified CP3 pumps, or dual-CP3 kits create extreme low-pressure suction demands that overwhelm factory in-tank pumps. This inlet fuel starvation leads to cavitation, erratic rail pressure, and catastrophic injection component wear; the FASD07250G ensures uninterrupted positive fuel pressure under maximum engine loading.

Built around the continuous-duty motor used in FASS Titanium Signature Series assemblies, this standalone pump-only system flows 250 gallons per hour (GPH) with mechanical pressure adjustability from 1 to 75 PSI, allowing builders to calibrate the exact supply pressure demanded by specialized high-performance fuel setups. An integrated boost compensation port connects directly to the intake manifold, referencing boost pressure to automatically increase fuel delivery under wide-open throttle to eliminate fuel pressure drop during peak engine output. Outfitted with FASS Whisper Technology (FWT) to minimize operational noise, the system includes an integrated 1/8" NPT port for gauge monitoring and 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

• High-Capacity 250 GPH Flow Delivery: Supplies 250 gallons per hour of continuous diesel fuel to easily support high-output builds, dual-fueler kits, and competition setups producing 900 to 1,200+ horsepower.
• Wide-Range Pressure Adjustability (1–75 PSI): Mechanically adjustable pressure regulator allows precise tuning to match the exact low-pressure inlet demands of high-performance injection pumps.
• 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 clearances, acoustically engineered radius cuts, and specialized coatings lower electric motor decibels to eliminate cab resonance.
• High-Flow Billet Tank Bulkhead & Draw Straw: Includes the BHF-1005 6061-T6 billet bulkhead fitting and PTFE suction tube, providing unrestricted 5/8" suction and 1/2" return routing directly through 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: FASD07250G (FAS D07 250G / 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: 250 Gallons Per Hour (GPH)
• Operating Pressure: Mechanically Adjustable from 1 to 75 PSI (Factory Preset to ~16–18 PSI)
• Horsepower Rating: Recommended for 900 HP to 1,200+ HP High-Performance & Race 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 lift pump and must be routed through the OEM filter housing or an aftermarket fuel filtration head (such as the S&S Diesel regulated filter head). 2010–2014 4th Gen trucks require part number FASD05250G.
• Installation Tip: Install a mechanical fuel pressure gauge into the 1/8" NPT test port prior to initial setup; calibrate the regulator screw in small increments while the engine idles until target pressure (typically 15–18 PSI for CP3 pumps) is reached, tighten the jam nut, and connect the boost compensation line to the intake manifold.