AirDog® II Demand Flow Fuel Preporator® – GM Duramax

EFFICIENCY with CONSISTENT, MAXIMUM POWER OUTPUT!

This new model Fuel Preporator® improves on the original by offering demand flow, so that the unit only draws as much fuel from the tank – through the tank module – as is required by the engine, and then returns only air and a dribble of fuel to the tank.

Airdog IIWhat does this mean? Connecting to the tank module means there is no need to drill holes in the fuel tank to install an aftermarket fuel draw straw, so installation with the included fittings is QUICK and EASY.

The AirDog II also features an adjustable stainless steel pressure regulator. As always, all AirDog® II units come complete with fittings, fuel lines, mounting brackets, and full-color installation manual specific to each model truck.

Features and benefits

  • Most Compact System Available
  • Only 7” L x 3.2” W x 10” H
  • High Efficiency, Long Life Gerotor Fuel Pump
  • Lower Cost Replacement Filters
  • Relay Controlled Wiring Harness
  • Low Fuel Pressure Warning Light Available
  • Includes Wire Screen Water Separator
  • Lifetime Warranty
  • 90 Day Satisfaction Guarantee

Reliability and Performance! Two powerful reasons to add an AirDog® II to your diesel pickup!
The AirDog® II provides the proper pressure/flow of fuel to your diesel engine under virtually all operating conditions for PEAK EFFICIENCY with CONSISTENT and MAXIMUM POWER OUTPUT!

The AirDog® II eliminates the air in the fuel that robs your engine of consistently greater performance and can also cause permanent damage to your injectors. The AirDog® II also provides the fuel pressures and flows your diesel engine needs to produce maximum power, any time, every time!

For serious performance seekers, whether you run a GM Duramax on the daily grind or for weekend pleasure, the AirDog® II has something to offer you!

Airdog II

AirDog II GM Duramax Parts


100 GPH Part # A5SPBC259 – $655

Application: 2001-2010 GM Duramax

Pureflow Airdog II Demand Flow 100 w/ Built-In adjustable regulator
. Rated for 100 gph
. Comes complete with all necessary filters, bracket, fittings, and hose.

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165 GPH Part # A5SABC109 – $670

Application: 2001-2010 GM Duramax

Pureflow Airdog II Demand Flow 165 w/ Built-In Adjustable Regulator. Rated for 165 gph. Comes complete with all necessary filters, bracket, fittings, and hose.

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165 GPH Part # A5SABC110 – $690

Application: 2011-2014 GM 6.6L Duramax LML

Pureflow Airdog II Demand Flow 165 w/ Built-In Adjustable Regulator. Comes complete with all necessary filters, bracket, fittings, and hose.

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AirDog II-4G DF-165-4G Part # A6SABC413 – $739

Application: 2015 GM 6.6L Duramax LML

Pureflow Airdog II Demand Flow 165 w/ Built-In Adjustable Regulator. Comes complete with all necessary filters, bracket, fittings, and hose.

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200 GPH Part # A5SABC112 – $715

Application: 2001-2010 GM Duramax

Pureflow Airdog II Demand Flow 165 w/ Built-In Adjustable Regulator. Rated for 200 gph. Comes complete with all necessary filters, bracket, fittings, and hose.

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