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Description
Airdog II-5G Air Fuel Separation Lift Pump System 89-93 Dodge 5.9L 12 Valve CumminsFrom the factory, 1st Gen 12 Valve Cummins have a mechanical lift pump that actually works pretty good at maintaining adequate fuel pressure to the VE injection pump at stock and slightly above stock power levels. That said, its almost TOO easy to add power to a 12 valve through pump and injector upgrades, which now tasks this stock pump, not allowing for the full power potential of the performance upgrades you're making. The AirDog II 5G is an all in
From the factory, 1st Gen 12 Valve Cummins have a mechanical lift pump that actually works pretty good at maintaining adequate fuel pressure to the VE injection pump at stock and slightly above stock power levels. That said, its almost TOO easy to add power to a 12 valve through pump and injector upgrades, which now tasks this stock pump, not allowing for the full power potential of the performance upgrades you're making.
The AirDog II-5G is an all in one premium fuel pump and filtration system for your 12 Valve Cummins diesel. This system removes water, particulates, and entrained air from the diesel fuel. The entrained air that is separated from the fuel is returned to the tank through a small return fitting. The fuel is delivered to the engine at the correct pressure and flow rate to meet the demands of the engine under all operating conditions.
The AirDogII-5G systems feature a built in adjustible diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The regulator allows for more fuel pressure adjustability, better fuel flow at pressure, and can be boost compensated.
HOW IT WORKS:
The AirDog II-5G draws fuel from the fuel tank through a 1/2” suction line and the DF-220 draws fuel through a 5/8” suction line to reduce the risk of cavitation at the pump. The fuel is then drawn through the water separator where 92% of water is removed per SAE spec 1488. It is then pressurized through a Gerotor pump and sent to the 2 micron fuel filter before it is sent to the injection pump. The air from aerated fuel, due to tank sloshing and engine return lines, is separated and sent back to the tank through the 3/8” return fitting. The excess fuel that the engine does not use is recirculated through the diaphragm regulator back to the suction side of the pump.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
The entryway is very convenient for storing keys and small odds and ends.
Color: Brown
The entryway is very convenient for storing keys and small odds and ends.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Great tray
Color: Brown
It has been 2 years simce i bought this one, it still looks like new and it's a great way to organize my desk
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Really nice!
Color: Brown
Nicely made. The wood has a lovely finish and rich color. The compartments have a softer bottom so you don’t have to worry about scratching your glasses or other surfaces. Great assortment of compartment sizes to help organize your items.
Kicking myself for not getting one sooner.
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Great quality and perfect desk organizer
Color: Brown
Great quality and perfect desk organizer
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Beautiful and Functional - And A Great Price. Just Bought My Third One
Color: Beige
I just ordered my third Sumnacon square linen tissue box cover. This tissue box looks just like linen - but it's better because unlike real linene, it can be wiped down and cleaned. It is a soft linen color... it blends beautifully into any decor. Such an improvement over a cardboard tissue box. I got one for my bathroom, then ordered one for our bedroom. I just ordered another for the kids bathroom. It has a magnetic bottom which is great and the price is right. I've purchased big clunky ceramic tissue box covers in the past and these are far superior. Understated and very pretty.
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Reviewed in the United States on January 3, 2026