This is the AirDog II-5G DF-165-5G fuel system for the 2015-2016 Chevy/GMC Duramax 6.6L Diesel. This diesel lift pump mounts to the frame jig in front of the fuel tank for a clean looking installation. The suction side hooks up to the factory suction fitting in the fuel module. The pressure side connects directly to the factory injection pump feed line on the frame. The AirDog Air/Vapor return is sent back to the tank through a filler neck tee. This system is one of our easiest installations. Our Duramax kits usually see the largest performance gains as these trucks do not come with a lift pump from the factory. This is a 165GPH (Gallon Per Hour) lift pump system for moderately modified trucks. Check out our installation manual for a list of parts that are included with this kit.

Considerations
Over the life of your diesel pickup truck there may be unnecessary stress on your fuel system. High mileage and/or additional performance modifications such as a tuner or oversized injectors can weaken your injection pump, or CP4, in a shorter amount of time than with the stock fuel system. This may result in a drop in performance, reliability, and fuel economy. Installing an AirDog II-4G lift pump will strengthen, protect, and in most cases extend the life of the fuel system and related parts. The supplied fuel filter (FF100-2) and water separator (WS100) filter your fuel down to a 2 micron rating, which surpasses the stock fuel filters capability. The AirDog 2 4G also helps by eliminating spray pattern disruption from air entering the diesel fuel system. The result is overall increased engine efficiency by keeping the injection timing where it should be thus allowing a more complete burn of the fuel entering the cylinder.
The patented AirDog® II-5G 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.

Advancing the AirDog® Tradition with the 5th Generation Fuel System!

The AirDog® II-5G 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-5G:
•Increased Fuel Economy
•Increased Power Output
•Increased Torque Output
•Longer Injector Life
•Improved Throttle Response
•Reduced Exhaust Emissions
•Optimized Engine Performance

AirDog® II-5G also overcomes loss of power for diesel engines operating at higher altitudes.

AirDog® II-5G Features
•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 7L X 10T X 3.2W

AirDog® II-5G Installation Kit

All-Inclusive 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

AirDog® II-5G Fuel Air Separation System featuring Demand Flow Technology and Enhanced Features

AirDog® II-5G 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.