SKU: 92168139442

AirDog Fuel Pump - Pureflow II-4G DF-100-4G for 1998.5-2004 Dodge Cummins

Sale price$333.43 Regular price$370.48
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Description

AirDog Fuel Pump - Pureflow II-4G DF-100-4G for 1998.5-2004 Dodge CumminsThe 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. 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

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.

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

  • Optimized Engine Performance

AirDog® II-4G also overcomes loss of power for diesel engines operating at higher altitudes.

AirDog® II-4G 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 7?L X 10?T X 3.2?W

AirDog® II-4G 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-4G Fuel Air Separation System featuring Demand Flow Technology and Enhanced Features

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.



Vehicle Fitments:

Year Make Model Submodel
1998 - 2002 Dodge Ram 2500 Custom, Base
1998 Dodge Ram 2500 Lujo, Limited
2006 - 2007 Dodge Ram 2500 Power Wagon, SLT Sport, Sport, TRX4
1999 - 2007 Dodge Ram 2500 SLT
2005 Dodge Ram 2500 SLT Daytona
2006 Dodge Ram 2500 SLT Night Runner Sport
2003 - 2007 Dodge Ram 2500 ST, Laramie
1998 - 2002 Dodge Ram 3500 Custom, Base
2003 - 2007 Dodge Ram 3500 Laramie, ST
1999 - 2007 Dodge Ram 3500 SLT
2006 - 2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 TRX4
2003 - 2004 Dodge Sprinter 2500 Base
2003 - 2004 Dodge Sprinter 3500 Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 92168139442

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angelique gorden
Massapequa, US
★★★★★ 5
Good
Color: PDRN 25%
Works well
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Reviewed in the United States on May 29, 2026
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Alivia
Birmingham, US
★★★★★ 3
It's okay.
Color: PDRN 25%
I'm not going to say it's good I'm not going to say it's bad, I do not like the sticky feeling you have to wash your hands afterwards. And it feels sticky on your face for a while I used it about 10 minutes after microneedling my face. It did help my face feel better kind of calm it down a little bit. When I applied it it didn't burn or nothing
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Reviewed in the United States on February 16, 2026
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Jessika
Fort Morgan, US
★★★★★ 5
Great product
Color: PDRN 25%
Game changing product. It makes less expensive stuff feel like luxury. I love it.
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Reviewed in the United States on April 5, 2026
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LR
Charlottesville, US
★★★★★ 5
Great booster to mix with other products — long-term results are real
Color: PDRN 25%
The Salmon DNA PDRN 250,000 ppm Concentrate Booster works amazingly well when mixed with other skincare products. I often add a few drops to my cream, essence, or even a mask, and it blends in smoothly without changing the texture. It’s super versatile and easy to incorporate into any routine. At first, I didn’t notice a dramatic change right away, but after consistent use, I can definitely see a difference. I’m already on my third bottle since I started using it back in Korea, and my skin texture has improved a lot. The bumps and unevenness have noticeably reduced, and my skin feels much smoother and more refined now.
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Reviewed in the United States on October 23, 2025
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DO
Fort Morgan, US
★★★★★ 5
Results after a few uses. ✨
Color: PDRN 25%
There’s a little bit of magic in this bottle. I’ve applied directly to skin, let it soak in for a few minutes, then follow with moisturizer with no issues. Already seeing subtle softening and fluffing of lines after a few uses. Excited for this one. Thank you!
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Reviewed in the United States on December 28, 2025

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