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Air Dog II Fuel System Fuel Air Separator from Pure Flow Diesel Improves Fuel Economy and Mileage, Optimizes Engine Performance, Provides Longer Injector Life, Improves Throttle Response, Removes Air from Fuel Lines Resulting in Quieter Running Engine!
From the makers of the Original Air Dog Fuel Air Separation System.
This patented fuel system efficiently removes air/vapor from your diesel fuel for improved fuel economy and performance.

The AirDogII® Fuel/Air Separation System is a one of a kind product that features Demand Flow and an Adjustable Regulator that lets you fine tune your fuel system for increased fuel economy, power, and performance!

AirDog® American made, quality driven products provide some of the following benefits:

  • Remove air, water, particulates and vapor from fuel to maintain optimal fuel flow and fuel delivery.

  • Improve fuel economy

  • Reduce exhaust emissions

  • Improve diesel engine performance

  • Increase Horsepower

  • Improve throttle response

  • Increased top end power

  • Longer injector life

  • Smoother idle

  • Optimal fuel system lubrication

AirDog ® II Fuel Air Separation System featuring Demand Flow Technology AirDog ® II is designed to operate at flows and pressures beyond the maximum requirements of the engine. AirDog works by using the Fuel Preparator.

The system can improve diesel engine performance by separating the entrained air from the fuel, also improving  fuel economy through improved injection timing, increased power and better fuel burn.  

HOW IT WORKS

   It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate contaminates and unknown quantities of water.

   The fuel passes through the water separator which removes the large particulate contaminates that could damage or jam the gerotor fuel pump.

   The fuel, with only entrained air/vapor and tiny particulate contaminates remaining, then enters the fuel pump.

   The fuel, now under positive pressure flow, enters the fuel filter.

   As the fuel passes through the filter media and 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 media is now free of contaminates 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.

*The effectiveness has been proved over millions of miles and verified by the EPA and CARB Certified Olsen Ecological Laboratory testing under ISO 8178 8 Mode Test criterion.

An engine equipped with the Fuel Preporator has consistently shown a timely injection and will perform at peak power output and efficiency regardless of the fuel filter condition.  

fuel-preporator-diagram-h.jpg

 

 

Ram Dodge Cummins Air Dog Fuel Air Separator by Pure Flow Diesel

  • AirDog II (DF165): 2005-2010 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165): 2005-2010 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165):2005-2010 Dodge Cummins 5.9L, 6.7L 165 GPH Preset 2005-2010     Preset@15-17psi NEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes...
    $776.00 $690.00
  • AirDog II (DF165):1994-1998 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165):1994-1998 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165): 1994-1998 Dodge Cummins 5.9L, 6.7L 165 GPH Preset 1994-1998     Preset@25-30psi NEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes...
    $776.00 $690.00
  • AirDog II (DF165):1998.5-2004 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165):1998.5-2004 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF165):1998.5-2004 Dodge Cummins 5.9L, 6.7L 165 GPH Preset 1998.5-2004  Preset@15-17psi  NEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes air/vapor...
    $776.00 $690.00
  • AirDog II (DF200): 1994-1998 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 1994-1998 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 1994-1998 Dodge Cummins 5.9L, 6.7L 200 GPH preset. 1994-1998     Preset@25-30psiNEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes...
    $836.00 $725.00
  • AirDog II (DF200): 1998.5-2004 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 1998.5-2004 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 2005-2010 Dodge Cummins 5.9L, 6.7L 200 GPH preset. 2005-2010     Preset@15-17psiNEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes...
    $836.00 $725.00
  • AirDog II (DF200): 2005-2010 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 2005-2010 Dodge Cummins 5.9L, 6.7L
    AirDog II (DF200): 2005-2010 Dodge Cummins 5.9L, 6.7L 200 GPH preset. 2005-2010     Preset@15-17psiNEW Quick Connect for Faster Installation Increased Fuel Economy and Performance • removes...
    $836.00 $725.00
  • AirDog II (DF165) Air Dog II Fuel System Fuel Air Separator 89-93 Dodge Cummins 5.9L
    AirDog II (DF165) Air Dog II Fuel System Fuel Air Separator 89-93 Dodge Cummins 5.9L
    AirDog II (DF165): 1989-1993 Dodge Cummins 5.9L 165 GPH Preset Preset@10-13psi NEW Quick Connect for Faster Installation Increased Fuel Economy and Performance Air Dog II Fuel System Fuel Air Separator from Pure...
    $776.00 $690.00
  • AirDog II Water Separator Filter Replacement
    AirDog II Water Separator Filter Replacement
    AirDog II Replacement Filters Water Separator Filter     Increased Fuel Economy and...
    $32.00 $29.00
  • AirDog II 2 Micron Fuel Filter Replacement
    AirDog II 2 Micron Fuel Filter Replacement
    AirDog II Replacement Filters 2 Micron Fuel Filter     Increased Fuel Economy and...
    $32.00 $28.00