Products Showing Parts for — {{ }}

No Results Showing Parts for — {{ }}
USD 724
Part #: PTA6SPBC259

AirDog II-4G A6SPBC259 DF-100-4G Air/Fuel Separation System

2001-2010 GM 6.6L Duramax (Stock To Moderate)
Part #: PTA6SPBC259
★★★★★ ★★★★★ 3 Reviews
Our Recommendations Compatible Products
Scroll to View More


The PureFlow AirDog II-4G A6SPBC259 DF-100-4G Air/Fuel Separation System for your 2001-2010 GM 6.6L Duramax is the next generation in the fuel delivery system, resulting in a long lasting, efficient and quiet lift pump. The compact AirDog II-4G provides the most effective technology designed specifically for diesel pickups to remove water, particulates, vapor and entrained air from diesel fuel, all while increasing power and performance.  

The design of the patented AirDog II-4G features many innovative improvements for increased pump performance, less noise and less maintenance. The AirDog II-4G utilizes an intermediate pump shaft that moves the electric motor away from the fuel. This eliminates any potential for wet motors due to a damaged or leaking seal. The motors self-aligning capability requires less maintenance and increases the systems endurance, resulting in a longer pump life. The low amperage motor also provides longer drivability and contributes to a significant reduction in noise. 

AirDog® is proud to announce that the AirDog II-4G® is the quietest fuel system in the diesel market!


  • Preset @ 8-10 PSI 
  • Supports Stock - 500HP
  • Flows 100 Gallons Per Hour 
  • Improved Throttle Response
  • Smoother Idle & Acceleration


  • MFG. Number A6SPBC259
  • Manufacturer Name AirDog by PureFlow
  • Shipping Weight 27.00 lb.
  • Shipping Length 19 in.
  • Shipping Width 13 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • EO Number D-595-3
  • UPC 813094012596
  • Warranty Yes
  • Warranty Info Limited Lifetime


Currently Viewing Reviews with a rating of 5. Click here to reset.
★★★★★ ★★★★★
5.0/5 Stars out of 3 Reviews
Orcutt, Ca 93455
(8916 East Clark ave) | April 25th, 2020
I am very please with the filter : pump combo and as well It tucked up neatly under the fender well and came with everything needed for a good install.
Great Lift Pump
(Newport, OR) | May 31st, 2018
Great lift pump! Quite and works very well. Tucks up nicely inside the frame rail unlike most of the other lift pumps that are visible and vunerable. Well worth the money! Order # 818789
(FRESNO, CA) | December 19th, 2017
All i can say is this is simply a great product. I have just installed my second pump on my second Duramax. Airdog has great customer service and are willing to do anything for you, even if your product is out of warranty.

Write a Review

Include Your Order Number For a Chance to Win a $100 Gift card

Overall Rating

Your Information

Email Address will not be made public.

Customer Photos

Customer Photos

See what others built Submit your photo

Questions and Answers

Ask XDP a Question about this product (Allow 24-48 hours for reply)

Most Popular Questions

Does the air dog 2 come with all the hoses and fitting necessary to install on my truck
View Staff Answer 

The AIRDOG II-4G A6SPBC259 DF-100-4G AIR/FUEL SEPARATION SYSTEM will include everything needed for installation.

View Staff Answer 
Does this AirDog pump come with everything needed?
View Staff Answer 
The AirDog II-4G A6SPBC259 DF-100-4G Air/Fuel Separation System will include the harness, hoses, and all other items needed for installation.


XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.