AirDog 100/150 - 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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Pureflow Airdog

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AirDog 100/150 GPH

The Original AirDog 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 also filters air/vapor and other particulates out of the fuel.

GM - 

92-00 6.5L 100 GPH (Preset @8psi) - A4SPBC084
92-00 6.5L 150 GPH (Preset @8psi) - A4SPBC087
01-10 100 GPH (Preset @8psi) - A4SPBC085
01-10 150 GPH (Preset @8psi) - A4SPBC088

Dodge - 

89-93 100 GPH (Preset @10-13PSI) - A4SPBD336
94-98 100 GPH (Preset @25-30PSI) - A4SPBD000
98.5-04 100 GPH W/O In-Tank Fuel Pump - A4SPBD001
98.5-04 100 GPH W/ In-Tank Fuel Pump - A4SPBD353
05-10 100 GPH (Preset @15-17psi) - A4SPBD002
89-93 150 GPH (Preset @10-13PSI) - A4SPBD337
94-98 150 GPH (Preset @25-30PSI) - A4SPBD003
98.5-04 150 GPH (Preset @15-17psi) - A4SPBD004
05-10 150 GPH (Preset @15-17psi) - A4SPBD005

Ford -

99-03 100 GPH (Preset @10psi) - A4SPBF168
03-07 100 GPH (Preset @10psi) - A4SPBF169
08-10 100 GPH (Preset @10psi) - A4SPBF170
99-03 150 GPH (Preset @10psi) - A4SPBF171
03-07 150 GPH (Preset @10psi) - A4SPBF172
08-10 150 GPH (Preset @10psi) - A4SPBF173

The Original Fuel Air Separation System

The Original AirDog 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.

AirDog Benefits

The AirDog removes contaminates, including air/vapor, particulates and moisture. The Air Dog also removes excess fuel not needed, by allowing the fuel to flow through the regulator and return to the fuel tank. The separated air/vapor enters the return port after the regulator, allowing pure fuel to flow to the engine at a regulated positive pressure. A gerotor pump offers quiet, long lasting performance.

  • Removes Air and Vapor from Diesel Fuel

  • Pure Diesel Fuel Reaching Engine

  • High Flow Rates of Fuel to Engine

  • Longer Injector Life

  • Increased Injection Pump Life

  • Increased Fuel Economy

  • Optimized Engine Performance

  • Increased Torque Output

  • Improves Throttle Response

AirDog® - Original Fuel/Air Separation System Fuel Saving Benefits

AirDog Features

  • Small & Compact: Only 7″L X 10″T X 3.2″W

  • Single Piece Pump Body: Replaces the old 3 piece pump design reducing the number of parts, unit size, and weight. This results in a sleek, low profile pump assembly and eliminates the need for leaky, messy gaskets!

  • Mounts to frame: No Drilling required!

AirDog Installation Kit

All-Inclusive Installation Kit includes:

  • Relay Control Wiring Harness

  • 1/2″ Suction Tube (when required)

  • All Fuel Fittings Required

  • Mounting Hardware

  • 1/2″ Fuel Lines W/ OEM Style Quick Connect Fittings

  • AirDog® Bracket & Spacer

  • Plastic Ties

  • Installation Manual

YouTube Video

Additional Info

Additional Info



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