AirDog II-4G 100/165/200 - GM, Cummins, Powerstroke

  • Increased Fuel Economy
  • Longer Injector Life
  • Increased Torque Output
  • Improves Throttle Response
  • Removes Air and Vapor from Diesel Fuel

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AirDog II-4G 100/165/200 GPH

The AirDog II Fuel & Water Seperator offers Improved Throttle Response, Increased Fuel Economy, and Longer Injector Life. Send positive fuel pressure to your fuel pump to prolong your factory fuel pump. As well as providing fuel pressure, the Air Dog II also filters air/vapor and other particulates out of the fuel.

Advancing the AirDog Tradition with New and Unique Features!

The patented AirDog II system removes entrained air/vapor from diesel fuel which improves engine performance by:

  • Maintaining Correct Injection Timing

  • Eliminating Spray Pattern Disruption

  • Allowing for a Full Power Stroke and Complete Burn

Which leads to:

  • Increased Fuel Economy

  • Increased Power Output

  • Increased Torque Output

  • Longer Injector Life

  • Improved Throttle Response

  • Reduced Exhaust Emissions

  • Optimized Engine Performance

AirDog II also overcomes loss of power for diesel engines operating at higher altitudes.

The Original Fuel Air Separation System

The AirDog II-4G provides fuel flow and positive pressure beyond the maximum requirements of the engine. The engine receives fuel under vacuum from the fuel tank containing air/vapor, particulate contaminates and moisture. The fuel passes through the water separator which removes the water and large particulate contaminates that could damage or jam the gearator fuel pump. The fuel, with only air/vapor and tiny particulate contaminates remaining, enters the fuel pump.

The fuel, now under positive pressure, enters the filter. As the fuel passes through the filter and the remaining particulate contaminates are caught and contained, the air/vapor is also separated. Through the positive fuel air separation features of the Air Dog, the separated air/vapor is discharged from the filter through the primary Air/Vapor discharge port and into the return to tank passage after the regulator. The fuel passing through the filter(free of contaminates & power robbing air/vapor and at pressures and flows to meet the needs of the engine exits the fuel filter through two passageways. The fuel for the engine, passes into the fuel pickup tube and out to the engine).

The excess fuel not needed by the engine is released through the pressure regulator to combine with the air/vapor and foam as it returns to the fuel tank. The regulator controls the fuel pressure to the engine.

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