Engineered for 2004.5–2018 Dodge Ram 2500 and 3500 diesel trucks powered by the 5.9L Common Rail or 6.7L 24V Cummins engine, the PureFlow AirDog II-5G DF-220 System (A7SABD529) represents the pinnacle of high-volume diesel fuel supply. Aggressively fueled competition trucks running large-displacement injectors, dual CP3 injection pumps, and high-boost compound turbos can easily starve standard aftermarket lift pumps, creating destructive inlet vacuum drops and severe air cavitation. The AirDog II-5G solves this by providing up to 220 gallons per hour of pure, deaerated diesel fuel with complete pressure tunability.

The II-5G platform introduces an industry-first integrated diaphragm fuel pressure regulator adjustable from 7 to 70 PSI, which can also be boost-compensated via an intake manifold reference line to elevate fuel delivery under maximum boost. To feed this massive volume without cavitation, the kit includes an oversized 5/8-inch draw straw that pulls fuel directly from the tank module, while returning unused fuel through AirDog’s signature "Demand Flow" circuit. Built with an upgraded 12-gauge wiring harness, a high-amperage Metri-Pack 280 connector, and a quiet 4-bearing intermediate shaft motor, the DF-220 system purges entrained air and water while filtering particulates down to 2 microns absolute.

Key Features & Benefits

• High-Output 220 GPH Delivery: Supplies a relentless 220 gallons per hour to fuel heavily modified street trucks, sled pullers, and drag racers supporting 1,000 to 1,200+ horsepower.
• Integrated Diaphragm Pressure Regulator: Fully adjustable from 7 to 70 PSI for precise rail supply matching; features boost compensation capability to hold positive pressure under full throttle.
• Demand Flow Recirculation: Recirculates unconsumed filtered fuel directly through the base assembly, reducing agitation in the fuel tank and maximizing motor efficiency.
• Oversized 5/8" Draw Straw Suction: Massive 5/8-inch in-tank suction tube and larger internal body porting eliminate fluid restrictions and prevent high-vacuum pump cavitation.
• Heavy-Duty 12-Gauge Wiring & Metri-Pack Connector: Heavy 12-gauge wire run with a Metri-Pack 280 sealed connector safely manages current draw without excessive thermal buildup.
• Dual-Stage 2-Micron Filtration: Combines a primary water separator with a 2-micron particulate filter to shield expensive high-pressure common rail injection equipment from contamination.
• Quiet 4-Bearing Motor Assembly: Features an intermediate shaft and four-bearing architecture to dampen vibration, lower motor decibels, and maximize operational lifespan.

Technical Specifications

• Manufacturer Part Number / SKU: A7SABD529 (DF-220-5G Series)
• Truck Platform: 2004.5–2009 (3rd Gen) & 2010–2018 (4th Gen) Ram Heavy Duty 2500 / 3500
• Engine Platform: 2004.5–2007 5.9L Common Rail & 2007.5–2018 6.7L 24V Cummins Turbo Diesel
• Flow Rating: 220 Gallons Per Hour (GPH)
• Operating Pressure: Mechanically Adjustable from 7 to 70 PSI (Factory Preset to ~16–18 PSI)
• Pressure Regulator Type: Integrated Diaphragm Regulator with Boost Compensation Port
• Horsepower Rating: Engineered for 800 HP to 1,200+ HP High-Performance & Race Applications
• Filtration Rating: 2-Micron Particulate Filter & High-Efficiency Water Separator
• Suction Kit Included: 5/8-Inch High-Flow In-Tank Draw Straw Kit
• Harness & Connectors: 12-Gauge Wiring Harness with Sealed Metri-Pack 280 Connection
• Warranty: PureFlow AirDog Limited Lifetime Warranty (with warranty registration)

Vehicle Fitment & Installation Notes

• 2004.5–2007 Dodge Ram 2500 / 3500 – 5.9L 24V Common Rail Cummins (Engine Codes "ETH" 325 HP)
• 2007.5–2009 Dodge Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• 2010–2018 Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• Fits Model Years: 2004.5, 2005, 2006, 2007, 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
• Fitment Notice: Compatible with 2004.5–2018 models. Early 2004 and older 5.9L trucks equipped with engine-mounted fuel pumps require kit A7SABD528. Does not fit 2019+ Ram chassis platforms.
• Installation Tip: Install the oversized 5/8" draw straw through the module hat, cutting the bottom at a 45-degree angle approximately 1/4" above the basket bottom; route the air/vapor return line straight to the original 3/8" suction fitting on the factory module to eliminate the need for filler neck cutting.