Fits: 98.5-04 5.9L Dodge Cummins

Benefits of the 5G Fuel System

Improved throttle response
Longer injection system life
Increased power and torque
Reduced exhaust emissions
Adjustable diaphragm fuel pressure regulator
Boost compensation capability
Quiet and smooth pump operation

The Pureflow AirDog II-5G DF-100 A7SPBD354 lift pump is a must-have upgrade for your 1998.5-2004 5.9L Cummins diesel. The fuel system on your diesel truck is the heart of the vehicle’s performance and reliability. This low-pressure lift pump (preset at 10 psi) mounts to the inner frame rail using the supplied sandwich-plate mounting system. The suction/fuel supply side connects directly to the factory suction line on the frame rail. The pressure side connects to the factory injection feed line, bypassing the stock frame-mounted low-pressure pump.

The II-5G fuel pump features a fully adjustable integrated diaphragm pressure regulator. This regulator offers more consistent fuel pressure and allows for higher flow rates at pressure. It can also be boost compensated to battle any pressure drops under open throttle (boost compensation kits sold separately). The AirDog 5G also includes an updated 12-gauge wiring harness with Metri-Pack 280 connectors, allowing higher current flow without creating excessive heat.

The A7SPBD354 AirDog II-5G DF-100 Cummins diesel lift pump will solve the infamous low-fuel rail pressure codes P0087 and P1093. This positive supply being fed to your injection pump will also add performance, throttle response, and longevity to your vehicle. Due to extra stress on your fuel system from either high mileage and/or additional performance modifications, like a tuner or larger injectors, your injection pump can become weak over time. This may result in a drop in performance, reliability, and fuel economy. The supplied water separator (WS100) and fuel filter (FF100-2) mount to the pump. They filter your fuel down to a 2-micron rating, which surpasses the stock fuel filter’s filtration capability.

This AirDog II-5G 100 gph Cummins diesel lift pump is recommended for trucks that have a stock to aggressively upgraded fuel system (meaning stock to larger injectors and injection pumps that will also support aggressive tuning). A perfect fit for daily drivers to performance applications reaching up to 1,000 RWHP! This is backed by a lifetime warranty.

AirDog’s Guarantee

The AirDog II-5G DF-100 for the 98.5-04 Cummins diesel is engineered with the most proven, quiet, and reliable motor technology on the market. It also retains the “demand flow” capabilities of the previous AirDog II systems. This means that it has a constant supply of clean, pure fuel available for your injector pump at all times. Any fuel not used by the engine is simply recycled back to the tank, so it will never “over-fuel” your system. The II-5G A7SPBD354 uses the same better-than-OEM fuel filter (FF100-2) and water separator (WS100) as the previous AirDog II models. 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.

Compatible with:

1998.5 Dodge 5.9L 24v Cummins
1999 Dodge 5.9L 24v Cummins
2000 Dodge 5.9L 24v Cummins
2001 Dodge 5.9L 24v Cummins
2002 Dodge 5.9L 24v Cummins
2003 Dodge 5.9L 24v Cummins
2004 Dodge 5.9L 24v Cummins

*May not work for all builds due to other engine/vehicle modifications

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