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Description
AirDog II-5G A7SABC509 DF-165-5G Air/Fuel Separation SystemThe AirDog II 5G A7SABC509 DF 165 5G Air Fuel Separation System from GAP is the newest generation of fuel delivery systems for your 2001 2010 GM 6. 6L Duramax LB7 LLY LBZ LMM (Moderate To Extreme). The AirDog II 5G offers protection and performance like no other lift pump. Their patented air separation, along with a water separator, and fuel filter makes sure your expensive fuel injection system components get all the clean fuel they can handle. This
The AirDog II-5G A7SABC509 DF-165-5G Air/Fuel Separation System from GAP is the newest generation of fuel delivery systems for your 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM (Moderate To Extreme).
The AirDog II-5G offers protection and performance like no other lift pump. Their patented air separation, along with a water separator, and fuel filter makes sure your expensive fuel injection system components get all the clean fuel they can handle. This also helps overcome any loss of power due to driving in higher altitudes with a factory fuel pump. This system improves engine performance by eliminating spray pattern disruption due to air entering the system. This allows the engine to keep its designed injection timing which allows a more complete burn of the fuel entering the cylinder. This increases overall engine efficiency across the power and torque range.
All 5G systems also come with upgraded wiring harnesses and connectors. The wiring harness features 12-gauge wire from the battery all the way to the internal connections in the motor. A Metri-Pack 280 connector replaces the Deutch 2-pin connector which allows more current flow without creating excessive heat. All other connectors in the harness use weather packs, to help keep the elements out.
The AirDog II-5G is the first diesel Fuel Air Separation System to include an integrated diaphragm fuel pressure regulator. This regulator better fuel flow at pressure, allows for more fuel pressure adjustability, and can also be boost compensated. This system retains the same 4G motor technology that has proven itself to be a reliable, quiet operating system. It also features the "Demand Flow" of the older AirDog II variants. Demand Flow means whatever fuel the injection system does not use gets recirculated back through the filter base.
The AirDog II-5G offers protection and performance like no other lift pump. Their patented air separation, along with a water separator, and fuel filter makes sure your expensive fuel injection system components get all the clean fuel they can handle. This also helps overcome any loss of power due to driving in higher altitudes with a factory fuel pump. This system improves engine performance by eliminating spray pattern disruption due to air entering the system. This allows the engine to keep its designed injection timing which allows a more complete burn of the fuel entering the cylinder. This increases overall engine efficiency across the power and torque range.
All 5G systems also come with upgraded wiring harnesses and connectors. The wiring harness features 12-gauge wire from the battery all the way to the internal connections in the motor. A Metri-Pack 280 connector replaces the Deutch 2-pin connector which allows more current flow without creating excessive heat. All other connectors in the harness use weather packs, to help keep the elements out.
The AirDog II-5G is the first diesel Fuel Air Separation System to include an integrated diaphragm fuel pressure regulator. This regulator better fuel flow at pressure, allows for more fuel pressure adjustability, and can also be boost compensated. This system retains the same 4G motor technology that has proven itself to be a reliable, quiet operating system. It also features the "Demand Flow" of the older AirDog II variants. Demand Flow means whatever fuel the injection system does not use gets recirculated back through the filter base.
Features:
- 165 GPH Fuel Pump
- 12-Gauge Wire Harness
- Enhances Engine Efficiency
- Better Fuel Flow At Pressure
- Larger Ports Over Previous Pumps
- Reliable & Quiet 4G Motor Technology
- Reduced Aeration From Low Flow Return
- Integrated Diaphragm Fuel Pressure Regulator
- All Necessary Wiring, Plumbing, & Installation Hardware Included
- Demand Flow Design Recirculates Fuel Back Through The Filter Base
- Lifetime Limited Warranty
Applications:
2001-2010 Chevy Silverado 2500HD/3500HD (6.6 Duramax LB7/LLY/LBZ/LMM)
2001-2010 GMC Sierra 2500HD/3500HD (6.6 Duramax LB7/LLY/LBZ/LMM)
WARRANTY INFO:
Limited Lifetime
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Well worth the price.
Great fit and quality feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
★★★★★ 5
The best digital watch on the market
Color: Black/Black/Digital, Color: Black/Black/Digital
Very well made and fits my wrist perfectly. The pictures don’t do it justice.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Awesome old-school 1990's feel
Color: Black/Black/Digital
besides the timer than can be set to do interval training, and the 100 lap memory, there is also a cute memo function that can store 10 memos, with 3 pages each. I use to help me remember my children's phone numbers.
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Reviewed in the United States on April 6, 2026
★★★★★ 3
Nostalgia is costly.
Color: Black/Black/Digital
It’s a nice watch but in no way is it worth the price. You’re paying a huge nostalgia fee with this one. At best this is a $40 watch. Battery life is horrible (3 years) and it loses 1-2 seconds a day. For a digital quartz watch that is extremely poor. I thought mine might be a poor example but after researching online I found the majority of new flix owners report losing at least 1-2 seconds a day.
As a Casio fan, it’s hard to see what the draw is to Ironman watches. Casio has them beat in almost every category. The only thing I think the timex wins at is the screen legibility at extreme angles. Anyways, I got it because I had a flix in high school and it brings back some memories. I believe the nostalgia factor is why these watches have any appeal at all.
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Reviewed in the United States on April 9, 2026
★★★★★ 4
Band broke
Color: Black/Black/Digital
Nice watch! Loved it mostly. Band broke a week in.
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Reviewed in the United States on October 3, 2025