Your diesel engine demands high fuel flows. Yet high fuel flows increase the vacuum at the fuel pump and agitation in the fuel tank. These factors generate additional air/vapor in the fuel system preventing your engine from producing maximum power and efficiency. Additionally, air/vapor can cause galling and pitting of the injector barrel/plunger assembly as well as tip erosion. The all new AirDog II-4G is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate contaminates and unknown quantities of water. The fuel passes through the water separator and filter media which removes the large particulate contaminates that could damage or jam the gear rotor fuel pump.
This diesel lift pump mounts to the frame rail using the supplied sandwich plate mounting system. A Fuel Module Upgrade Kit is installed in the factory fuel basket to pull fuel through a factory-style 1/2" bulkhead fitting. This will bypass the factory in-tank lift pump. The pressure side connects directly into the side of the factory fuel filter housing. The AirDog Air/Vapor return is sent back to the tank through the factory 3/8” suction line once the module is modified. This is a 200GPH (Gallon Per Hour) lift pump system for stock fuel trucks.
The design of the motor produces three unique benefits to the AirDog II-4G fuel system. This system uses an intermediate pump shaft that moves the electric motor away from the fuel. This aides in preventing “wet motors”. The motor’s self-aligning capability requires less maintenance and increases the systems endurance. Resulting in a longer pump life. The low amperage motor provides longer drivability and contributes to a significant reduction in noise. And the AirDog II-4G is the quietest fuel system in the diesel market!
So what can the AirDog II-4G do for you? The benefits of the system are immediately apparent. The removal of contaminants in diesel fuel, such as air, water vapor, and debris provide increases in power and performance. This is reflected by Smoother idle and acceleration, Improvement in throttle response, The elimination of hard starts. As the amount of air and water in the fuel decreases fuel economy improves which leads to increased savings. Removing contaminants allows for pure diesel fuel to enter the combustion chamber through the injectors, safeguarding the engine and providing a full burn which means no more wasted fuel.