When you are in need of an AirDog fuel preporator suitable for heavy duty and industrial use, the AirDog FPII 4G is the perfect piece of equipment. At PureFlow Technologies, Inc., we are dedicated to manufacturing exceptional units to improve diesel engine performance for many different industries.

All of our products are designed specifically for many of the most popular diesel engines manufactured in the US. We pride ourselves on our superior customer service and complete kits available to our customers. When you are looking to reduce the effects of fuel tank sloshing, improve engine performance, and provide superior filtration of fuel to your engine, the AirDog fuel pressure system is what you need.

Shop all of our great AirDog products today to help increase the lifetime of your diesel engine. Whether you own a small trucking fleet or work in an agricultural market, we guarantee you will love the boost our products offer. If you have questions or need assistance in placing an order, please contact us at 1-877-463-4373.

*For active duty service members or veterans, please contact us to take advantage of our 10% military discount in honor of your service.

AirDog® FPII-150 4G CAT 3406 A, B, & C
AirDog® FPII-150 4G CAT 3406 A, B, & C

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,130.00 Add to cart
AirDog® FPII-150 4G Detroit Series 60 (2003-2009)
AirDog® FPII-150 4G Detroit Series 60 (2003-2009)

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,096.00 Add to cart
AirDog® FPII-150 4G for Detroit Series 60 (1987-2002)
AirDog® FPII-150 4G for Detroit Series 60 (1987-2002)

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,093.00 Add to cart
AirDog® FPII-150 4G Volvo VED-12, D11, D12, & D13
AirDog® FPII-150 4G Volvo VED-12, D11, D12, & D13

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,131.00 Add to cart
AirDog® FPII-200 4G CAT 3406E, C10-13, C15, C16, & C18
AirDog® FPII-200 4G CAT 3406E, C10-13, C15, C16, & C18

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,243.00 Add to cart
AirDog® FPII-200 4G Cummins ISX & Signature 600
AirDog® FPII-200 4G Cummins ISX & Signature 600

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,172.00 Add to cart
AirDog® FPII-200 4G Cummins ISX15 & X15
AirDog® FPII-200 4G Cummins ISX15 & X15

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,175.00 Add to cart
AirDog® FPII-200 4G Cummins N14 with Pump Mount Fuel Filter
AirDog® FPII-200 4G Cummins N14 with Pump Mount Fuel Filter

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,289.00 Add to cart
AirDog® FPII-200 4G Cummins N14 with Remote Fuel Filter
AirDog® FPII-200 4G Cummins N14 with Remote Fuel Filter

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,156.00 Add to cart
AirDog® FPII-200 4G Paccar MX13
AirDog® FPII-200 4G Paccar MX13

The Pre-Combustion Solution for Maximum Engine Efficiency! The AirDog® FPII 4G Fuel Air Separation System is the state of the art fuel processor that removes not only water and particulate contaminates from the fuel flow to the engine, but most … Continued

not rated $1,156.00 Add to cart