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SKU #: PF-A7SABD528 MPN #: A7SABD528

Airdog II-5G 220 GPH Air Fuel Separation Lift Pump 98.5-04.5 Dodge 5.9L Cummins W/ In-Tank Pump

$895.00
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Description
The 1998.5-2002 Cummins got a pretty bad rap over the years for failed VP44 injection pumps, many claiming it was one of the worst decisions ever made to mate this supposed failure-prone pump on a Cummins powered Ram. Now, was it the VP44's fault, or was the engine bay mounted lift pump really the culprit? In most cases, the failure of the low output lift pump causes the demise of the injection pump. And to make matters worse, they continued to use a similar lift pump placement all the way through the 2004.5 model years before going to a higher output in-tank lift pump. So how do you fix one of these trucks for good? Easy, ditch the block mounted/fuel filter mounted stock lift pump and upgrade to an AirDog!The AirDog II-5G is an all in one premium fuel pump and filtration system for your 1998.5-2004.5 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 DF-220 systems feature a built in adjustable diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The AirDog II-5G, for this particular application, is preset at 17 psi from the factory for a stock application. The regulator is adjustable up to 55 PSI so you can fine tune the system to perfectly match up to your current and future performance upgrades.HOW IT WORKS:The AirDog II-5G DF- 165 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 Gearotor 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. IMPORTANT INFORMATION REGARDING IN-TANK FUEL PUMP: This specific AirDog unit is designed for trucks featuring the in-tank lift pump. For those unaware, all of the 1998.5-2004.5 Cummins powered Rams came from the factory with a block mounted lift pump. However, if it ever failed and had it replaced previously, it very likely was retrofitted to the newer design that actually placed the pump in the fuel tank. If you're not sure where your pump is located, simply "bump" the key, which will engage the pump, then listen whether the hum from the pump is coming from the engine compartment or the fuel tank.

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The 1998.5-2002 Cummins got a pretty bad rap over the years for failed VP44 injection pumps, many claiming it was one of the worst decisions ever made to mate this supposed failure-prone pump on a Cummins powered Ram. Now, was it the VP44's fault, or was the engine bay mounted lift pump really the culprit? In most cases, the failure of the low output lift pump causes the demise of the injection pump. And to make matters worse, they continued to use a similar lift pump placement all the way through the 2004.5 model years before going to a higher output in-tank lift pump. So how do you fix one of these trucks for good? Easy, ditch the block mounted/fuel filter mounted stock lift pump and upgrade to an AirDog!

The AirDog II-5G is an all in one premium fuel pump and filtration system for your 1998.5-2004.5 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 DF-220 systems feature a built in adjustable diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The AirDog II-5G, for this particular application, is preset at 17 psi from the factory for a stock application. The regulator is adjustable up to 55 PSI so you can fine tune the system to perfectly match up to your current and future performance upgrades.

HOW IT WORKS:
The AirDog II-5G DF- 165 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 Gearotor 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.

IMPORTANT INFORMATION REGARDING IN-TANK FUEL PUMP:
This specific AirDog unit is designed for trucks featuring the in-tank lift pump. For those unaware, all of the 1998.5-2004.5 Cummins powered Rams came from the factory with a block mounted lift pump. However, if it ever failed and had it replaced previously, it very likely was retrofitted to the newer design that actually placed the pump in the fuel tank. If you're not sure where your pump is located, simply "bump" the key, which will engage the pump, then listen whether the hum from the pump is coming from the engine compartment or the fuel tank.
EXECUTIVE ORDER #D-595-5
Manuals and Guides
Vehicle Fitment
1998.5-2004.5 Dodge 5.9L Cummins WITH In-Tank Fuel Pump
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
KIT CONTENTS:
  • (1) AirDog II-5G DF-220
  • (1) AirDog II Bracket
  • (1) Mounting Hardware Kit
  • (1) Frame Bracket
  • (1) Wiring Harness
  • (1) Bundle of Plastic Ties
  • (1) 5/8” High Flow Suction Tube
  • (1) Spacer
  • (1) 14ft of Fuel Line
  • (1) 7ft of 5/8” Fuel Line
  • (1) 1/2” Straight Hose Quick Connect Fitting
  • (1) 1/2" 90 Degree Hose Quick Connect Fitting
  • (1) 3/8” 90 Degree Hose Quick Connect Fitting
  • (1) 12mm X 1/2” male SAE J2044 Fitting
  • (1) Sealing Washer (installs on WAP102 fitting)
  • (1) 1/2” Male J2004 Quick Connect x 3/4-16” UNF
  • (1) 3/8” Male J2004 Quick Connect x 7/16” UNF
  • (2) 3/4-16 ORB Male to -10 JIC Female Fitting
  • (2) -10 JIC Male to 5/8” Barb
  • (1) Return Fuel Filler Tube (with 2 Clamps)
  • (1) Customer Service Oring 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
Product Overview: AirDog II-5G Air Fuel Separation System
Fuel pressure and cleanliness are key if you want to run your truck hard and have it last. The AirDog 5G features an industry-first pump-mounted, adjustable, diaphragm fuel pressure regulator. This means you can dial in your fuel pressure perfectly for a consistent supply of fuel. This kit includes everything you need to install. MADE IN THE USA.
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.