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SKU #: PF-A7SPBD338 MPN #: A7SPBD338

Airdog II-5G Air Fuel Separation Lift Pump System 89-93 Dodge 5.9L 12 Valve Cummins

$858.00
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Description
From the factory, 1st Gen 12 Valve Cummins have a mechanical lift pump that actually works pretty good at maintaining adequate fuel pressure to the VE injection pump at stock and slightly above stock power levels. That said, its almost TOO easy to add power to a 12 valve through pump and injector upgrades, which now tasks this stock pump, not allowing for the full power potential of the performance upgrades you're making. The AirDog II-5G is an all in one premium fuel pump and filtration system for your 12 Valve Cummins diesel. This system removes water, particulates, and entrained air from the diesel fuel. The entrained air that is separated from the fuel is returned to the tank through a small return fitting. The fuel is delivered to the engine at the correct pressure and flow rate to meet the demands of the engine under all operating conditions. The AirDogII-5G systems feature a built in adjustible diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The regulator allows for more fuel pressure adjustability, better fuel flow at pressure, and can be boost compensated.HOW IT WORKS:The AirDog II-5G draws fuel from the fuel tank through a 1/2” suction line and the DF-220 draws fuel through a 5/8” suction line to reduce the risk of cavitation at the pump. The fuel is then drawn through the water separator where 92% of water is removed per SAE spec 1488. It is then pressurized through a Gerotor pump and sent to the 2 micron fuel filter before it is sent to the injection pump. The air from aerated fuel, due to tank sloshing and engine return lines, is separated and sent back to the tank through the 3/8” return fitting. The excess fuel that the engine does not use is recirculated through the diaphragm regulator back to the suction side of the pump.
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From the factory, 1st Gen 12 Valve Cummins have a mechanical lift pump that actually works pretty good at maintaining adequate fuel pressure to the VE injection pump at stock and slightly above stock power levels. That said, its almost TOO easy to add power to a 12 valve through pump and injector upgrades, which now tasks this stock pump, not allowing for the full power potential of the performance upgrades you're making.

The AirDog II-5G is an all in one premium fuel pump and filtration system for your 12 Valve Cummins diesel. This system removes water, particulates, and entrained air from the diesel fuel. The entrained air that is separated from the fuel is returned to the tank through a small return fitting. The fuel is delivered to the engine at the correct pressure and flow rate to meet the demands of the engine under all operating conditions.

The AirDogII-5G systems feature a built in adjustible diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The regulator allows for more fuel pressure adjustability, better fuel flow at pressure, and can be boost compensated.

HOW IT WORKS:
The AirDog II-5G draws fuel from the fuel tank through a 1/2” suction line and the DF-220 draws fuel through a 5/8” suction line to reduce the risk of cavitation at the pump. The fuel is then drawn through the water separator where 92% of water is removed per SAE spec 1488. It is then pressurized through a Gerotor pump and sent to the 2 micron fuel filter before it is sent to the injection pump. The air from aerated fuel, due to tank sloshing and engine return lines, is separated and sent back to the tank through the 3/8” return fitting. The excess fuel that the engine does not use is recirculated through the diaphragm regulator back to the suction side of the pump.
EXECUTIVE ORDER #D-595-5
Vehicle Fitment
1989-1993 Dodge 5.9L Cummins
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
MANUFACTURING:
  • PureFlow AirDog products are manufactured in Shelbyville Indiana by a team of skilled workers with unsurpassed attention to detail and using the most stringent quality assurance.
KIT CONTENTS:
  • (1) AirDogII-5G DF-100 or DF-165 (depending on selection)
  • (1) AirDogII Mounting Bracket
  • (1) Frame Bracket Set
  • (1) Spacer Block
  • (1) Mounting Hardware Kit
  • (1) Bundle of Plastic Ties
  • (1) Return Fuel Filler Tube Assembly (1-3/4” OD w/2 Clamps)
  • (2 or 4) 1/2” Straight Hose Quick Connect Fitting (4 for DF-165-5G) (2 for DF-220-5G)
  • (1) 1/2" 90° Hose Quick Connect Fitting
  • (1) 3/8” 90° Hose Quick Connect Fitting
  • (1) 14mm X ½” male SAE J2044 Fitting
  • (1) Sealing Washer (installs on WAP103 fitting)
  • (1 or 3) 1/2” Male J2004 Quick Connect x 3/4-16” UNF (3 for DF-165-5G) (1 for DF-220-5G)
  • (1) 3/8” Male J2004 Quick Connect x 7/16” UNF
  • (2) 3/4-16 ORB Male to -10 JIC Female Fitting (DF-220-5G only)
  • (2) -10 JIC Male to 5/8” Barb (DF-220-5G only)
  • (2) 5/16” Push Lock X 1/4” Male NPT
  • (1) Injection Pump Return Tee
  • (1) P-Pump Flexible Return Line
  • (1) 5/8” High Flow Suction Tube
  • (1) Wiring Harness
  • (1) 14ft of 1/2” Fuel Line (DF-220-5G) 20ft of 1/2” Fuel Line (DF-165-5G)
  • (1) 7ft of 5/8” Fuel Line (DF-220-5G Only)
  • (1) Customer Service O-ring Replacement Kit
About AirDog by Pureflow
PureFlow Technologies aka Airdog has established themselves as one of the œgo to companies for factory replacement and upgraded fuel pumps for the light duty diesel performance truck market with their AirDog and Raptor lines. If you are looking for just a reliable source of fuel, their Raptor stand alone pumps are the answer. You guys with 1998.5-2002 2nd Gen Cummins diesels equipped with Bosch VP44 injection pumps know how important this is to avoid pump failure. When lift pump pressure drops below 5psi you run the risk of ruining the expensive VP44 injection pump. The Raptor fuel pump gives you peace of mind with a LIFETIME WARRANTY , a built in ADJUSTABLE REGULATOR that supplies a constant 15-17psi available in flow rates of 100 and 150 GPH, complete truck specific installation kit with no drill mounting brackets and standard ½ big line kit included.

For those of you that prefer the added security of having a filter system to go along with your lift pump, PureFlow offers the AirDog and AirDog II systems. The original AirDog® provides a cost effective technology designed specifically for diesel pickups to remove water, particulates, vapor and entrained air from diesel fuel. The AirDog® replaces the Cummins factory lift pump and filter system, and enhances the existing fuel delivery and filtration system for Powerstroke and Duramax engines. Your High Performance diesel engine demands higher fuel flows. Yet, higher fuel flows increase the vacuum at the fuel pump and agitation in the fuel tank. These factors generate additional air/vapor in the fuel system preventing your engine from producing maximum power and efficiency. Additionally, air/vapor can cause galling and pitting of the injector barrel/plunger assembly and also tip erosion. The AirDog® eliminates the air in the fuel that robs your engine of consistently greater performance and can also cause permanent damage to your injectors. The AirDog® also provides the fuel volume your diesel engine needs to produce maximum power, any time, every time! Increased diesel fuel economy, reduced emissions and increase power output are the net results.

The AirDog II system improves on the original AirDog by offering demand flow, so that the unit only draws as much fuel from the tank through the tank module as is required by the engine, and then returns only air and a dribble of fuel to the tank. What does this mean? Connecting to the tank module means there is no need to drill holes in the fuel tank to install an aftermarket fuel draw straw, so installation with the included fittings is QUICK and EASY. The AirDog II also features either a preset or adjustable stainless steel pressure regulator. As always, all AirDog II units come complete with fittings, fuel lines, mounting brackets, and full-color installation manual specific to each model truck.

We have fielded numerous calls regarding model years 1998.5 2004 Dodge trucks modified with in-tank fuel pumps. To facilitate an easier installation, Pureflow offers models available for 1998.5 2004 Cummins that are standard without an in-tank pump, or that have been modified with the in-tank pump. Please note that this option applies to 100 GPH models only, as the higher-flow models (150 GPH and up) will still come standard with the suction tube kit and bypass the in-tank pump anyway.

And finally, for the 1998.5-2002 Cummins owner that has a failed factory, block mounted pump, and merely looking for a stellar upgrade over stock, but not wanting to jump into a frame mounted system, the Factory Replacement Raptor is your answer. This features 100 GPH of reliable fuel delivery and mounts in the factory location for ease of installation. The FRRP is a great alternative for those only running a programmer and are not concerned with additional filtration. This unit only comes with a four year warranty, in contrast to the lifetime warranty of Pureflow's frame mounted systems.
Video
DIESEL TALK | AIRDOG II 5G!
If you’re serious about fuel delivery and protecting your injection system, the AirDog II-5G Fuel System is one of the best upgrades you can make. Designed to deliver clean, consistent fuel while removing air and vapor, this system helps improve performance, reliability, and longevity. In this video, we take a closer look at the AirDog II-5G, how it works, and why it’s a must-have upgrade for diesel trucks. The “5G” in AirDog II-5G refers to the 5th generation of AirDog’s fuel delivery systems—built with improved efficiency, quieter operation, and better filtration. Whether you're daily driving, towing, or pushing big power, upgrading to the AirDog II-5G helps ensure your engine is getting the clean, reliable fuel it needs.