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The AirDog 2-4G A6SABD340 Air/Fuel Separation System for your 1989-1993 Dodge 5.9L Cummins Diesel is the next generation Airdog fuel delivery system, resulting in an efficient, long lasting and quiet lift pump. The compact AirDog II-4G provides the most advanced technology designed specifically for diesel pickups to remove water, vapor, particulates and entrained air from diesel fuel, all while increasing performance, power, and fuel economy.
The new design of the patented AirDog II-4G features many innovative improvements for increased pump performance. This results in less noise and less maintenance. The AirDog 2-4G features an intermediate pump shaft that moves the electric motor away from the fuel, effectively isolating it. This eliminates any potential for “wet motors” due to a damaged or leaking seal. The motor’s capability to self-align requires less maintenance and increases the systems endurance, resulting in a longer pump life. The low amperage motor also provides a significant reduction in noise, and longer drivability.
AirDog® is proud to announce that the AirDog II-4G® is the quietest fuel system in the diesel market!
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
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 also overcomes loss of power for diesel engines operating at higher altitudes.
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
All-Inclusive Installation Kit includes:
Relay Control Wiring Harness
Fuel Module Up-Grade (when required)
All Fuel Fittings Required
1/2″ Fuel Lines W/ OEM Style Quick Connect Fittings
AirDog® II-4G Bracket & Spacer
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.
Airdog part number: A6SABD340
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