SKU: 83972934479

Airdog II-5G 100 GPH Air Fuel Separation Lift Pump 98.5-04.5 Dodge 5.9L Cummins W/In-Tank Pump

Sale price$384.75 Regular price$427.50
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Description

Airdog II-5G 100 GPH Air Fuel Separation Lift Pump 98.5-04.5 Dodge 5.9L Cummins W/In-Tank PumpThe 98. 5 2002 Cummins got a pretty bad rap over the years for failed VP44 injection pumps, many claiming it was one of the worst decisions ever made to mate this supposed failure prone pump on a Cummins powered Ram. Now, was it really the VP44's fault, or was the engine bay mounted lift pump really the culprit? In most cases, the failure of the low output lift pump causes the demise of the injection pump. And to make matters worse, they continued to

The 98.5-2002 Cummins got a pretty bad rap over the years for failed VP44 injection pumps, many claiming it was one of the worst decisions ever made to mate this supposed failure prone pump on a Cummins powered Ram. Now, was it really the VP44's fault, or was the engine bay mounted lift pump really the culprit? In most cases, the failure of the low output lift pump causes the demise of the injection pump. And to make matters worse, they continued to use a similar lift pump placement all the way through the 2004.5 model years before going to a higher output in-tank lift pump. So how do you really fix one of these trucks for good? Easy, ditch the in tank stock lift pump and upgrade to an AirDog!

The AirDog II-5G is an all in one premium fuel pump and filtration system for your 1998.5-2004.5 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 DF-100 systems feature a built in adjustable diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The AirDog II-5G, for this particular application, is preset at 17 psi from the factory for a stock application. The regulator is adjustable up to 55 PSI so you can fine tune the system to perfectly match up to your current and future performance upgrades.

HOW IT WORKS:
The AirDog II-5G DF-100 draws fuel from the fuel tank through a 1/2” 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 Gearotor 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.

IMPORTANT INFORMATION REGARDING IN-TANK FUEL PUMP:
This specific AirDog unit is designed for trucks featuring the in-tank lift pump. For those unaware, all of the 1998.5-2004.5 Cummins powered Rams came from the factory with a block mounted lift pump. However, if it ever failed and had it replaced previously, it very likely was retrofitted to the newer design that actually placed the pump in the fuel tank. If you're not sure where your pump is located, simply "bump" the key, which will engage the pump, then listen whether the hum from the pump is coming from the engine compartment or the fuel tank.
Shipping Notes
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SKU: 83972934479

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Yaramis Rodriguez
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★★★★★ 5
Great for dry skin and the whole family
Size: 19 Ounce (Pack of 1)
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Reviewed in the United States on March 28, 2026
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Karina
Fort Morgan, US
★★★★★ 5
Dry Skin Miracle!
Size: 8 Ounce
I have very dry skin, and around my chin and nose, it flakes and turns red, exposing my inner layer of skin due to severe dryness. I could never seem to hydrate it or get rid of the flakiness. I thought it was just my skin at this point, and I could do nothing to solve it. Now, I've never considered using Cerave; I've always heard negative things about it. However, I've never been a makeup person until now, when I want to try to elevate my look (not to mention I'm always in pain from a lack of hydration). The problem is, my skin is so dry that it cracks the makeup, preventing it from setting well on my face. Another problem is that around my nostrils, the flakiness looks like boogers, nasty. It's incredibly annoying. So I did a little research, and now I'm here. LET ME TELL YOU! This cream is amazing! I love how thick it is, and how a little goes a long way! My face, for the first time in my short life, is not dry! It's not buttery smooth, as in your hand won't glide against my face, but it won't feel the flakiness and roughness of my skin—and that's a game changer! I'm genuinely obsessed with randomly rubbing my face to feel the almost barrier of hydration, especially around my nostrils! I cannot explain the level of amazement I felt when I touched my nostril area to feel practically smooth skin. I felt as if it were a miracle. I've only used it for a week now, keep in mind, and this is how I feel. PLEASE BUY THIS IF YOU'RE LIKE ME! I'M SO HAPPY WITH THIS PURCHASE, AND IT'S WORTH ALL MY MONEY 🙏
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Reviewed in the United States on March 6, 2026
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Rosa Ortega
Draper, US
★★★★★ 5
From dry to soft in days.
Style: 3.38 Fl Oz (Non SPF)
I bought this moisturizer at a time when my skin truly needed help, with mature and sensitive skin, and I was dealing with intense dryness. My skin felt tight, dull, and uncomfortable, even after trying several products that didn’t provide lasting hydration. I decided to try this cream and within the first few days, I noticed a real difference. It’s lightweight, absorbs quickly, doesn’t feel greasy, and most importantly, it doesn’t irritate my skin—instead, it soothes it. With continued use, my skin became softer, more supple, and visibly healthier, without that constant tight feeling. I love that it’s fragrance-free, oil-free, and non-comedogenic, as it hasn’t caused any breakouts. It also contains ceramides and niacinamide, and the added SPF makes my routine much easier. After trying many products, I can honestly say this is the only one that truly worked for me. It’s now a daily essential.
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Reviewed in the United States on April 18, 2026
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Omaha, US
★★★★★ 5
Great daily lotion
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Great daily lotion. I love that it is light and fragrance free. It is perfect for day use. I have dry skin and sometimes it is not enough to use by itself. I mostly use it during the day as a base for sunscreen but it feels really good on the face and does not leave my face feeling greasy. The ingredients are really good and the value for money is great. I love LRP products and this is so easy to use.
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✨ My New Favorite Face Cream for Hydrated & Glowing Skin ✨
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