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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.
- 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
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★★★★★ 5
Nice
Color: Grey on Black Fabric
Better than expected
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Quality timepiece
Color: Brown on Brown Rubber, Color: Brown on Brown Rubber
Beautiful watch keeping accurate time. Quality timepiece
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Reviewed in the United States on December 23, 2025
★★★★★ 5
MUY BONITO
Color: Blue on Blue Fabric
EXCELENTE
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Stunning!
Color: Blue on Stainless Steel
Amazing looking watch! Super happy with the design and looks of this piece. I totally love it!
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Reviewed in the United States on August 6, 2025
★★★★★ 5
Great watch, Art Of Horology was a pleasure to deal with
Color: Anthracite on Stainless Steel
What a great watch! There are so many choices out there (even when you filter out a large portion of those you are clearly not interested in :-). Know what you like, use discipline with your cash, be logical, but then even after all that, you will eventually just have to let the right brain kick in and choose based on creativity and intuition. I needed a watch, and wanted a decent one, that looked good. This does all of that in style.
It's not too big, its fairly waterproof, easy to read with clean lines. I wanted lume...
The textured face has an interesting effect, like looking out a window at late dusk.
Don't buy too many things, but when you do be wise. Even the Dalai Lama likes good watches.
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Reviewed in the United States on March 19, 2022