A4SPBD136 lift pump
A4SPBD136 lift pump

AirDog FP-100-4G A4SPBD136 Air/Fuel Separation System

$624.00

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  • Fits: 89-93 Dodge RAM 5.9L 12v Cummins

In stock (can be backordered)

SKU: A4SPBD136 Category: Tag:

The Pureflow AirDog FP-100-4G A4SPBD136 lift pump is a must-have upgrade for your 1989-1993 Dodge RAM with the VE44 Cummins. 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 4G 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 4G also includes an updated 12-gauge wiring harness with Metri-Pack 280 connectors, allowing higher current flow without creating excessive heat.

The AirDog FP-100-4G Dodge Cummins A4SPBD136 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 FP-100-4G Dodge Cummins A4SPBD136 lift pump is recommended for trucks with 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 FP-100-4G for the 89-93 Dodge Cummins 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 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 FP-100-4G A4SPBD136 uses the same better-than-OEM fuel filter (FF100-2) and water separator (WS100) as the previous AirDog 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:

  • 1989 Dodge/RAM 5.9L 12v Cummins
  • 1990 Dodge/RAM 5.9L 12v Cummins
  • 1991 Dodge/RAM 5.9L 12v Cummins
  • 1992 Dodge/RAM 5.9L 12v Cummins
  • 1993 Dodge/RAM 5.9L 12v Cummins

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

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Weight 27 lbs
Dimensions 19 × 13 × 7 in

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