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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1856 reviews
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Product Reviews
★★★★★ 5
Life saver for your skin
Set name: KOJIC
I was skeptical before buying this. my skin dries out so quickly and lotions is just a temporary fix for dry skin. I was amazed that the first time I used it all the dry skin was peeling off such a simple solution. I’ll never be without it now you have to try it to believe it.
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Good product
Set name: KOJIC
I have used 1/2 bottle since December. Easy to use on dry skin, I use it before showering. I Probably don’t use it enough, simply because I forget. I have had dry peeling skin on my forehead recently and thought, oh I should use it there. I have to say, it made a big difference. One use and the dry skin came off and my forehead looks much better. I was having a hard time with makeup looking splotchy and now it goes on smooth.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Makes the skin smooth and soft
Set name: KOJIC
The product is wonderful. The first time I used it, it took off alot of the dead skin on my feet. Better than the "egg" or pumas stone. And bonus my hands are rough to and while rubbing on feet it rubbed off my hands as well and the hands are smoother too. NICE. Has a vick's vapor rub smell to it. Not overly strong. Im looking forward to having my feet smooth for the first time, ever!!! The only thing is the bottle it comes in. I could not get the sprayer to work. The off button worked beautifully but the on button did not work. When on it pumped but nothing came out. I even had my family and friends try to get it to work, but to no avail. So I put it in another spray bottle which worked and it was fine. Love the product!
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Works great,smells like Noxema
Set name: KOJIC
This is a great exfoliater. I use it once a week from face to toes. The smell reminds me of Noxema wich I'm not fond of but it's dose rinse off well. Works on both wet and dry skin wich I like better than a different brand which only works on dry skin.
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Reviewed in the United States on May 24, 2026
★★★★★ 3
No change in hyperpigmentation
Set name: KOJIC
I've suffered with hyperpigmentation on my armpits and have been using this for about a month now. I don't see a difference as far as the hyperpigmentation. I use it every other day before I shower but I will give three stars since it does smell great and leaves my armpits feeling soft after each use.
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Reviewed in the United States on May 13, 2026
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