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Description
Airdog II-5G 100 GPH Air Fuel Separation Lift Pump System 11-14 6.6L GM Duramax LMLWhy GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and or larger displacement injectors. Even at stock power levels, this insufficient
Why GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and/or larger displacement injectors. Even at stock power levels, this insufficient fuel pressure and volume equates to limited overall power, decreased fuel economy, and potentially harming the injection pump and injectors due to a lack of lubrication.
The AirDog II-5G is an all in one premium fuel pump and filtration system for your 2011-2014 LML Duramax 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 adjustible diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The AirDog II-5G, for this particular application, is preset at 8-10 psi from factory for a stock application. The regulator is adjustible up to 55 psi for fine tuning 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 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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4.8 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Power Adapter Not Included
Color: Brown +Wireless
I'm initially impressed with this valet tray. I purchased two for my husband: one for his nightstand and one for his dresser, as he likes to keep things organized. We liked the idea of the wireless charging capabilities, but were a little disappointed to discover that the power adapter (wall plug) is not included with the tray. The tray includes a charging pad and a cord, but no wall plug. We don't have an extra pair in the house, so we'll have to wait until a pack arrives before we can test out the charging capabilities. That aside, the trays are a handsome set. I think 20% larger might serve us a tad better, but this will do very nicely for now. We're able to fit almost everything we need in the tray and that will leave the tables looking much tidier, even if one or two items don't quite make it in.
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Reviewed in the United States on October 20, 2025
★★★★★ 5
Great organization and a charger too!
Color: Blue
Pros: charge pad works well to charge not only phones but watches as well,materials are quality and the blue color is very appealing. Fits well on the night stand and has great sized compartments for items to stay organized.
Cons: none that I can note
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Reviewed in the United States on October 10, 2025
★★★★★ 5
3 year anniversary is leather
Color: Brown +Wireless
I bought this for our third year wedding anniversary, as a gift for my husband. The 3rd year is supposed to be a gift inspired by leather. The tray is very durable and has lots of compartments. My husband uses it on his nightstand to keep things that he has in his pocket when he empties them the end of the night. The wireless charger is very convenient, although he prefers to actually plug in his phone rather than wirelessly charge it. The charger cable itself is surprisingly of great quality. The leather isn’t too bad either. Good gift for the price point.
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Reviewed in the United States on July 29, 2025
★★★★★ 5
Organizer tray
Color: Brown +Wireless
This thing's style is 1960's cool.. Great organizer and charger.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Cute Tray, Bad Charger
Color: Black
Worked for about a month, now it will only charge sometimes.
Edit: Seller contacted me and replaced item. It is working perfectly fine now.
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Reviewed in the United States on March 28, 2025
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