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Part #: PTA5SABF388

AirDog II A5SABF388 DF-165 Air/Fuel Separation System

2011-2016 Ford 6.7L Powerstroke (Moderate To Extreme)
Part #: PTA5SABF388
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The PureFlow AirDog II A5SABF388 DF-165 Air/Fuel Separation System for your 2011-2016 Ford 6.7L Powerstroke provides the most effective technology designed specifically to remove water, particulates, vapor and entrained air from the diesel fuel in your truck. The AirDog II is a lift pump and filtration system that enhances the fuel delivery to your engine with a commercial duty system. The AirDog II features the one-of-a-kind Demand Flow Technology which improves on the original AirDog design, by only drawing the required fuel needed by your engine.

Your high performance diesel engine demands higher fuel flows. Yet higher fuel flows increase the vacuum at the fuel pump and agitation in the fuel tank. These factors generate additional air/vapor in the fuel system preventing your engine from producing maximum power and efficiency. Additionally, air/vapor can cause galling and pitting of the injector barrel/plunger assembly and also tip erosion. The AirDog II eliminates air in the fuel that robs your engine of consistently greater performance and can also cause permanent damage to your injectors. The AirDog II also provides the fuel pressures and flows your diesel engine needs to produce maximum power, any time, every time!

The Airdog II features the one-of-a-kind Demand Flow Technology. The AirDog System functions by taking fuel from the tank, and passing it through the water separator which removes large particulate contaminates. Then, fuel under positive pressure flow enters the fuel filter. As the fuel passes through the fuel filter, the remaining particulate contaminates are caught and contained, the entrained air/vapor is also separated. Through the positive fuel air separation features of the patented AirDog® II the separated air/vapor is discharged from the filter and back to the fuel tank through the Primary Air/Vapor Discharge Port.

The fuel passing through the filter is now free of contaminants and power robbing air/vapor. At pressures and flows able to meet the needs of the engine, it exits the fuel filter through two passageways. First, the fuel for the engine, passes into the fuel pickup tube and on to the engine. Then, the excess fuel not needed by the engine recycles internally through the pressure regulator back to the water separator. Each kit includes plumbing, hardware, wiring harness, mounting bracket and all components needed for installation.


  • 165 GPH @ 10 PSI (Stock-800HP)
  • Removes Air & Water From Fuel 
  • Increased Horsepower & Torque 
  • Optimized Engine Performance 
  • Improved Throttle Response 
  • Increased Fuel Economy 
  • Lifetime Limited Express Warranty
Application Note: This pump supplies fuel to your factory lift pump.


  • MFG. NumberA5SABF388
  • Manufacturer NameAirDog by PureFlow
  • Shipping Weight30.00 lb.
  • Shipping Length19 in.
  • Shipping Width13 in.
  • Shipping Height7 in.


Great for use with a Programmer
Location: Long Island, NY
I installed the new Airdog II on my Ford 6.7L along with a H&S Tuner and it is worth every dollar and more. When tuner is set to hot it supplies more than enough fuel. Better throttle response over stock, helps a great deal when I turn my TS performance fuel rail module up as well
Works Great
Location: Susanville CA
It works great! Replaced my lift pump on my 2008 ford f350 6.4l, it has better throttle responce,and power. It was worth every dollar spent. Better fuel filter than stock.
tons of power
adam clemens
Location: GA
this air dog two gave awsome throttle responts and easy install and tons of power with this one on extreme

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Most Popular Questions

Does this kit require drilling for a draw straw?
View Staff Answer 

The AirDog II A5SABF388 DF-165 Air/Fuel Separation System will not require any holes to be drilled into your fuel tank.