Pay in installments of $106.88 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
- 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
4.9 ★★★★★
Based on 28 reviews
Sort
Product Reviews
★★★★★ 1
Was fun until it broke.
Color: Orange - Maple Wood, Color: Orange - Maple Wood
Broke on the third day after receipt while throwing in soft snow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
★★★★★ 5
he Durable, Natural Chew That Finally Gives Peace of Mind
Size: Large
Why It's a Top-Tier Chew:
Truly Safe Ingredients (Plant-Powered): This is the biggest selling point. The HonestChew is made from food-grade, plant-based cellulose, vegetable oil, and real antler bone powder—no nylon, no petroleum, and no plastic. This means I can finally relax when my dog is relentlessly gnawing, knowing the ingredients are safe.
Engineered for Safety AND Toughness: The material is specifically designed to flake rather than splinter like hard bones or crack like many synthetic chews. This makes it a much safer choice for dental health and digestive safety, even for the most aggressive chompers. It has the feel of a hard chew but with a safer breakdown.
Irresistible to Dogs: The chew is infused with real antler powder, giving it a natural, gnaw-worthy scent and flavor that keeps my dog engaged for long periods. The curved, ergonomic Infinity shape is excellent for dogs to grip securely with their paws, promoting a comfortable chewing posture.
Dental Support: The nubs and ridges on the surface aren't just for looks; they provide a gentle scraping action that helps scrub away plaque and tartar buildup on the teeth and above the gumline while the dog is happily playing.
Who Needs This?
If you have a dog that quickly destroys "indestructible" toys, swallows rawhide too fast, or causes you stress with the risk of bone splintering, the WOOF HonestChew Infinity is the perfect solution. It stands up to serious chewing and satisfies that innate gnawing instinct with confidence.
A highly recommended, long-lasting, and thoughtfully designed product that puts pet health first.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025
★★★★★ 5
Great toy for super chewers!!
Size: Large
My dog is a super chewer and he enjoys these so much. I do too cause I feel like my money is actually getting spent well than on a plush toy he’ll destroy in two seconds. Definitely recommend these all the time for anyone who has that same issue with their pets. Very durable and perfect size for my big pit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 4
My dog loves this toy and she hasn’t chewed it up yet.
Size: Medium
This is a good chew toy for my aggressive chewer. I bought the large size for my medium size dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
My Samoyed loved this!
Size: Medium
My dog’s favorite thing. This is his 4th toy and he loves it. The quality is great and it lasts very long. Definitely worth every penny you spend. It keeps my samoyed engaged every morning and every night. There is no choke hazard, so all dogs can use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
recommand products
REVOV C8 LiFePO4 Battery System
31396.50
Good Boy Superlicious Chicken Broccoli & Sweet Potato Bone Dog Treats 100g
13.79
Green People Organic Facial Oil, Cell Enrich Age Defy+ by Cha Vohtz, Vegan 30ml
125.79
Calinan Patent Red
1925.00
Grass & Co. Calm Lemon, Rosemary and Chamomile Pillow Spray 50ml
59.19