
- 4-Bearing Motor with Intermediate Shaft: Enhances reliability and significantly reduces pump noise for a quieter ride.
- Diaphragm Fuel Pressure Regulator: Allows the pump to be boost-referenced and adjusted from 7-70 PSI for precise fuel pressure control.
- Demand Flow Design: The pump only sends the necessary amount of fuel to the engine, improving efficiency and reducing unnecessary fuel recirculation.
- Larger Ports: Features bigger 3/4-16 O-ring boss inlet and outlet ports for improved fuel flow.
- Reduced Aeration from Low-Flow Return: A 7/16-20 low-flow return prevents air bubbles from forming in the fuel as it's returned to the tank.
- Dual-Feed Motor: Supplies fuel to both sides of the gerotor pump to minimize cavitation and ensure consistent performance.

Your 2015-2016 GM 6.6L Duramax deserves the best, and the Pureflow AirDog II-5G A7SABC515 DF-220-5G Air/Fuel Separation System is the next evolution in fuel delivery. This system isn't just a lift pump; it's a complete fuel management solution engineered to be the most efficient, durable, and quietest system available. It ensures your engine receives a continuous supply of clean, air-free fuel, providing both superior protection and optimal performance for your truck.
Key Features
220 GPH Pump: Delivers a powerful 220 gallons per hour of fuel, providing the high flow required for high-performance applications.
4-Bearing Motor with Intermediate Shaft: Enhances reliability and significantly reduces pump noise for a quieter ride.
Diaphragm Fuel Pressure Regulator: Allows the pump to be boost-referenced and adjusted from 7-70 PSI for precise fuel pressure control.
Demand Flow Design: The pump only sends the necessary amount of fuel to the engine, improving efficiency and reducing unnecessary fuel recirculation.
Larger Ports: Features bigger 3/4-16 O-ring boss inlet and outlet ports for improved fuel flow.
[...]
- 4-Bearing Motor with Intermediate Shaft: Enhances reliability and significantly reduces pump noise for a quieter ride.
- Diaphragm Fuel Pressure Regulator: Allows the pump to be boost-referenced and adjusted from 7-70 PSI for precise fuel pressure control.
- Demand Flow Design: The pump only sends the necessary amount of fuel to the engine, improving efficiency and reducing unnecessary fuel recirculation.
- Larger Ports: Features bigger 3/4-16 O-ring boss inlet and outlet ports for improved fuel flow.
- Reduced Aeration from Low-Flow Return: A 7/16-20 low-flow return prevents air bubbles from forming in the fuel as it's returned to the tank.
- Dual-Feed Motor: Supplies fuel to both sides of the gerotor pump to minimize cavitation and ensure consistent performance.