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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
For Your Every Summer RSVP, with Code: SUMMER15
Description
AirDog A4SPBD105 FP-150-4G Air/Fuel Separation SystemThe AirDog A4SPBD105 FP 150 4G Air Fuel Separation System from GAP improves the fuel system on your 2004. 5 2018 Dodge 5. 9L 6. 7L Diesel (Moderate To Extreme). This system was created by AirDog to remove water, pollutants, vapor, and entrained air from diesel fuel. This lift pump and filter system is necessary to provide a steady flow of clean fuel to your engine. This AirDog system combines their traditional non adjustable high flow return base with
The AirDog A4SPBD105 FP-150-4G Air/Fuel Separation System from GAP improves the fuel system on your 2004.5-2018 Dodge 5.9L/6.7L Diesel (Moderate To Extreme). This system was created by AirDog to remove water, pollutants, vapor, and entrained air from diesel fuel. This lift pump and filter system is necessary to provide a steady flow of clean fuel to your engine. This AirDog system combines their traditional non-adjustable/high flow return base with the 4G motor they have been utilizing for years with great success. By maintaining this basic architecture, AirDog is able to offer a cost-effective system with a tried-and-true and reliable motor design.The AirDog functions by drawing fuel from the fuel tank which contains entrained air/vapor, particle contaminants, and unidentified amounts of moisture. When the fuel passes through the water separator, water and large particle impurities are taken out of it. The fuel then reaches the fuel pump with the remaining entrained pollutants, air/vapor, and water. While the fuel passes through the fuel filter under positive pressure, the leftover particle pollutants are retained. The entrained air and vapor are separated and added back to the tank. The right pressures are then used to supply the clean fuel to your engine. Each kit includes all the plumbing, hardware, wiring, mounting brackets, and other installation-related parts needed.
If you update the components and performance of your diesel engine, it needs better fuel flow. Higher fuel flows cause more agitation in the fuel tank and vacuum at the fuel pump. This decreases the performance of the engine by allowing more air and moisture to enter the fuel system. Air and vapor can also cause galling, pitting, and tip erosion in injector barrel/plunger assemblies. The AirDog removes air from the fuel to prevent long-term damage to your injectors and improper operation of your engine. The AirDog also provides the fuel pressures and flows required for your diesel engine to run as efficiently as possible.
Features:
- 150 GPH Fuel Pump
- Faster Throttle Response
- Better Engine Performance
- Separates Air & Water From Fuel
- Includes Frame Mounting Bracket
- Features Reliable 4G Motor Design
- Increases Overall Engine Efficiency
- All Necessary Wiring, Plumbing, & Installation Hardware Included
Kit Includes:
AirDog Lift Pump
AirDog Cradle Bracket
Frame Bracket Set
Mounting Bracket Hardware
Spacer Block
Wiring Harness
High Flow Suction Tube
1.5” Filler Neck Tee with Clamps
20ft of Fuel Line
1/2” Straight Hose Quick Connect Fitting
(2) 1/2” 90deg Hose Quick Connect Fitting
(3) 1/2” Male Quick Connect x 3/4-16 UNF ORB
12mm x 1/2” Male SAE J2044 Injection Pump Fitting
12mm Sealing Washer
Zip/Cable Tie Bundle
O-Ring Kit
Vacuum Cap HVC-467-16
Vacuum Cap Hose Clamp
AirDog Lift Pump
AirDog Cradle Bracket
Frame Bracket Set
Mounting Bracket Hardware
Spacer Block
Wiring Harness
High Flow Suction Tube
1.5” Filler Neck Tee with Clamps
20ft of Fuel Line
1/2” Straight Hose Quick Connect Fitting
(2) 1/2” 90deg Hose Quick Connect Fitting
(3) 1/2” Male Quick Connect x 3/4-16 UNF ORB
12mm x 1/2” Male SAE J2044 Injection Pump Fitting
12mm Sealing Washer
Zip/Cable Tie Bundle
O-Ring Kit
Vacuum Cap HVC-467-16
Vacuum Cap Hose Clamp
WARRANTY INFO:
Limited Lifetime
Disclaimer: GAP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of GAP's parts, and has not tested or approved any of GAP’s parts for use in genuine Cummins brand products.
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 2349 reviews
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Product Reviews
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter.
The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff.
If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick.
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Reviewed in the United States on June 26, 2025
★★★★★ 5
Well built, good fit.
I like it so well, I just bought two more to keep on the shelf for when the price doubles. Seems better built than oem, but I don't know how you can judge the filtration; seems good though.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great product
Perfect fit for 21 Cross Trek
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Good fit, good value
Style: CF12436 Classic, Style: CF12436 Classic
Purchased this filter for my 2023 Outback. First off changing the cabin filter on this model Subaru is amazingly easy and can be done with no tools and no more then 5 minutes. Pictures posted show packaging, the paper "Blue" filter side, the "Black" charcoal side and the foam outer edge. The filter is well made and is very sturdy as the outer shell is plastic vs. other paper filters that are more flexible. Holding the filter in your hand and giving it a slite shake you can hear the activated charcoal within it. After installing the filter I had a few trips in the car, did I notice any difference in the air quality coming into the cabin....... no. But does this mean its not working? also no. What I can say is the filter fit snug and left no gaps, and with the plastic surroundings and foam in sure the filter will not be letting anything get by as it passes through the system. All and all this filter is well made and sturdy, and seems to be a good value with other paper only filters being about the same price.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Perfect Fit and Great Quality
Style: CF12552 Classic
The thickness is just right and fits perfectly. Easy to install, good airflow, and the air feels much cleaner after replacing the old filter. Great value for the price.
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Reviewed in the United States on May 22, 2026
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