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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
4.7 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Professional and streamlined leather backpack
I’ve had a dozen or so backpacks to use for work (corporate environment), and I really love this one. The leather is of high quality, plenty of pockets, strong zippers, straps, and grab handle, and provides a polished, professional, well-put together look. In the rear, zippered compartment, I have a 15-inch HP laptop, an iPad, and a 1/2 inch notebook. The main compartment is spacious and holds chargers for each device plus a lot of other miscellaneous items. There are two front, zippered compartments (one is intentionally “hidden” behind the other) that offer a secure and accessible way to access smaller items like pens, air pods, keys, etc. Great purchase, and I would definitely buy it again.
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Reviewed in the United States on July 9, 2025
★★★★★ 5
Love it!!!
Color: Mocha Brown
I bought it because it's the perfect size for carry-on luggage on the plane, and it's big enough to carry several things. Excellent quality for the price. It looks super cute and goes with everything.
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Reviewed in the United States on December 12, 2025
★★★★★ 4
9/10
Color: Mocha Brown
Better than expected
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Reviewed in the United States on July 24, 2025
★★★★★ 5
Lots of storage but compact look
Color: Mocha Brown
I was looking for something for my corporate 9-5 and was over a tote bag. This is perfect! It fits so much without it feeling or looking bulky. Love the amount of storage it has and I think it would even be a good travel bag
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Reviewed in the United States on March 13, 2026
★★★★★ 1
Defective
Super cute bag, unfortunately it was less than functional.
The main zipper cannot zip up completely, as it has been sewn incorrectly.
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Reviewed in the United States on November 17, 2025