Air Dog II- 4G 165 GPH Air/ Fuel Separation System

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AirDog II-4G DF-165 GPH A6SABC409 2001-2010 Duramax LB7, LLY, LBZ, LMM (Preset at 8psi)

The patented AirDog® II-4G 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 for your GM Duramax.

AirDog II-4G - 4th Generation Fuel System

Advancing the AirDog® Tradition with the 4th Generation Fuel System! 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
  • Dual Feed Gerotor Pump
    • Low amperage motor provides efficiency and endurance
    • Self-aligning motor requires less maintenance and reduces noise levels
    • Intermediate pump shaft seperates motor from fuel
    • Small & Compact: ONLY 7″L X 10″T X 3.2″W
  • AirDog II-4G Benefits

    • Increased Fuel Economy
    • Increased Power Output
    • Increased Torque Output
    • Longer Injector Life
    • Improved Throttle Response
    • Reduced Exhaust Emissions
    • Optimized Engine Performance
    • AirDog® II-4G also overcomes loss of power for diesel engines operating at higher altitudes.