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:
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  • 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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TMack
Chelsea, US
★★★★★ 4
Good Soap Saver
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I really like these. Have been using more natural ingredients in skin care, so these have been great with using bar soaps. The only thing I didn’t like is hair gets stuck in it. But that’s not necessarily the fault of the product. I do like that these are exfoliating.
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Reviewed in the United States on January 16, 2026
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Kelly Ulrich
Belleville, US
★★★★★ 5
Very good
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Good quality . No smell . Would buy again
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Reviewed in the United States on May 30, 2026
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Meg O
Grantham, US
★★★★★ 5
Good for oily people
Style: Soap Saver
This absolutely gives me a ton more lather than the bar by itself, and the rougher texture feels nice, like I'm getting a deep clean.
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Reviewed in the United States on November 29, 2025
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Carrie
Charlottesville, US
★★★★★ 5
Works great. Convenient
Style: Soap Saver
Works great. Convenient.
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Reviewed in the United States on September 1, 2025
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Leanne
West Palm Beach, US
★★★★★ 5
Meaningful and poignant read aloud, especially for children who have lost their moms
Format: Paperback
I bought this book to read to my class last year. It was a meaningful book, especially as there was a student who had lost her mom last year. I had a hard time getting through it because it was so beautiful and well-written.
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Reviewed in the United States on January 18, 2026

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