The AirDog 100GPH A4SPBC084 is the original proven Air/Fuel Separation 6.5L diesel lift pump, or Fuel Preporator, from PureFlow AirDog. A fuel filtration lift pump system is a must have for your 1992-2000 6.5L GM Diesel. The fuel system on your GM diesel truck is the heart of the vehicle’s performance and reliability. This low pressure (8-10 psi) 6.5L GM diesel lift pump mounts to the inner frame rail using the supplied sandwich plate mounting system. The suction/fuel supply sides hook directly up to the factory quick disconnect fittings. The pressure side connects directly to the injection pump feed line bypassing the factory frame rail mounted pump, making the install very straight forward.


The AirDog 100GPH lift pump will solve the infamous P0087 & P1093 low fuel rail pressure codes. This positive supply of purified fuel 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 of performance, reliability, and fuel economy. The supplied water separator (WS100) and fuel filter (FF100-2), that mount to the pump, filter your fuel down to a 2 micron rating, which surpasses the stock fuel filters filtration capability.  (see How It Works)


The AirDog 100GPH is recommended for 6.5L GM diesel trucks that have a stock to a mildly upgraded fuel system (meaning mild or stock injectors, injection pump, and tuning). Backed by a lifetime warranty.



  • Removes Air and Vapor from Diesel Fuel
  • Pure Diesel Fuel Reaching Engine
  • High Flow Rates of Fuel to Engine
  • Longer Injector Life
  • Increased Injection Pump Life
  • Increased Fuel Economy
  • Optimized Engine Performance
  • Increased Torque Output
  • Improves Throttle Response

AirDog® Installation Kit

All-Inclusive Installation Kit Includes:

  • Relay Control Wiring Harness
  • All Fuel Fittings Required
  • Mounting Hardware
  • 1/2″ Fuel Lines W/OEM Style Quick Connect Fittings
  • AirDog® Bracket & Spacer
  • Plastic Ties
  • Installation Manual

Additional information

Weight 26 lbs
Dimensions 19 × 13 × 8 in


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