2011-2016 Ford 6.7 Powerstroke


The PureFlow AirDog II–4G A6SPBF387 DF-100-4G Air/Fuel Separation System for your 2011–2016 Ford 6.7L Power Stroke is the next generation in this Fuel delivery system, resulting in a long lasting, efficient and quiet lift pump. The compact AirDog II–4G provides the most effective technology designed specifically for diesel pickups to remove water, particulates, vapor and entrained air from diesel fuel, all while increasing power and performance.


The design of the patented AirDog II–4G features many innovative improvements for increased pump performance, less noise and less maintenance. The AirDog II–4G  utilizes an intermediate pump shaft that moves electric motor away from the fuel. This eliminates any potential for wet motors due to a damaged or leaking seal. The motors due to a damaged or leaking seal. The motor is self-aligned and capability requires less maintenance and increases the systems endurance, resulting in a longer pump live. The low amperage motor also provides longer drivability and contributes to a significant reduction in noise.


AirDog is proud to announce that the AirDog II–4G is the quietest fuel system in the diesel market!



Preset @ 10 PSI

Supports Stock - 500 HP

Slows 100 Gallons Per Hour

Improved Throttle Response

Smoother Idol and Acceleration


CA Residents: CARB E.O. Number on File - LEGAL for use in California.

AirDog II-4G DF-100-4G Air/Fuel Separation System

  • A6SPBF387