AirDog Pureflow II-4G DF-200-4G 2001-2010 Chevy Duramax

AirDogSKU: A6SABC112
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Sale price$875.00


The AirDog II-4G is the latest in fuel delivery for your Duramax! Its patented design has been quality engineered to remove entrained air and water vapor from diesel fuel. The result is a compact, long lasting, efficient, and quiet fuel system made with superior quality.

  • Supports 800+ Rear Wheel Horsepower
  • Flows 200 Gallons Per Hour
  • Preset at 8-10 PSI

AirDog II-4G Fuel Air Separation System featuring Demand Flow Technology and Enhanced Features

AirDog II-4G is designed to operate at flows and pressures beyond the maximum requirements of the engine. 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 gear rotor fuel pump. The fuel, with only entrained air/vapor and tiny particulate contaminates remaining 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-4G 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 AirDog II-4G system improves engine performance by:
  • Maintaining Correct Injection Timing
  • Eliminating Spray Pattern Disruption
  • Allowing for a Full Power Stroke and Complete Burn

Benefits of the AirDog II-4G:
  • Increased Fuel Economy
  • Increased Power Output
  • Increased Torque Output
  • Longer Injector Life
  • Improved Throttle Response
  • Reduced Exhaust Emissions
  • Optimized Engine Performance
AirDog II-4G Features:
  • AirDog II-4G - Advanced Fuel/Air Separation Fuel Saving Benefits and Technology
  • Preset at 8-10psi
  • Dual Feed Gerotor Pump
  • Low amperage motor provides efficiency and endurance
  • Self-aligning motor requires less maintenance and reduces noise levels
  • Intermediate pump shaft separates motor from fuel
  • Ability to support 800+ rear wheel horsepower by delivering 200 gallons per hour of fuel
  • Small Compact: ONLY 7"L X 10"T X 3.2"W

AirDog II-4G Installation Kit Includes:
  • Relay Control Wiring Harness
  • Fuel Module Up-Grade (when required)
  • All Fuel Fittings Required
  • Mounting Hardware
  • 1/2" Fuel Lines W/ OEM Style Quick Connect Fittings
  • AirDog II-4G Bracket & Spacer
  • Plastic Ties
  • Installation Manual
Unsure of whether you need the Airdog 100, Airdog 165 or even the 200?
Put it this way...if your truck is stock, or moderately stock (70hp chip) you want the 100. If you've added a 100hp programmer or larger, or even a modified CP3, you will want the 165. If you are in need of SERIOUS fueling, then you want the 200.

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