top of page

AirDog II-5G DF-100 Air/Fuel Separation System 1994-2019+ Dodge Cummins 5.9/6.7L


Part Number by Years:

  • Dodge Cummins 1994-1998 (A7SPBD252)
  • Dodge Cummins 1998.5-2004 without In-Tank FP (A7SPBD253)
  • Dodge Cummins 1998.5-2004 with In-Tank FP (A7SPBD354)
  • Dodge Cummins 2004.5-2018 (A7SPBD254)
  • Dodge Cummins 20019+ (A7SPBD255)


FREE Ohio Diesel Parts Sump Kit Included! However for 2010+ we have a special that includes a fuel sump and fuel bowl delete.


AirDog II-5G DF-100 Fuel System NEW 5G's


  • NEW 5G’s! Diaphragm fuel pressure regulator adjustable from 7-70psi and can be boost compensated. 
  • New 5G’s include Larger Ports, using 3/4-16 O-ring Boss (-8) inlet/outlet and 7/16-20 ORB return port (-4). Giving you more options for fuel line sizing.
  • Maintains correct injection timing, and eliminates spray pattern disruption allowing for a full power stroke and complete burn
  • Increased Fuel Economy, Power & Torque Output, and Throttle Response
  • Low-amperage and self-aligning motor provides efficiency, and endurance with less noise and less maintenance
  • Intermediate pump shaft separates motor from fuel
  • Flow of 100 Gallons per Hour for stock fuel system trucks
  • Smoother Idle and Acceleration
  • Made in U.S.A



An industry first! The AirDog® II-5G is the first diesel Fuel Air Separation System to include an integrated diaphragm fuel pressure regulator. This regulator allows for more fuel pressure adjustability, offers better fuel flow at pressure, and can be boost compensated! This system has larger porting to allow less cavitation and noise at the inlet of the higher flowing 220GPH pumps. All AirDog II-5G systems come with improved wiring harnesses and connectors as well! The wiring harness is now 12ga 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 more current flow without creating excessive heat. All other connectors in the harness are weather pack to keep the elements out. This system has the same 4G motor technology that has proven itself to be a reliable, quiet operating system. It also retains the "Demand Flow" of the older AirDog II variants. Demand Flow means whatever fuel the injection system does not consume gets recirculated back through the filter base.

The AirDog® II-5G offers protection and performance like no other lift pump! Our patented air separation, along with a water separator and fuel filter makes sure your expensive injection system components get all the clean fuel they need. The AirDog® II-5G also overcomes loss of power due to driving in higher altitudes with a factory fuel pump.

The AirDog® II-5G 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!


ODP Diesel & Gas Fuel Tank Sump


  • Top plate and housing CNC machined from billet high-strength 6061 aircraft grade Aluminum; Black Anodized Finish.
  • Only sump on market to include TWO brass fittings: 1/2” and 5/8" ID hose so you fun whatever size line you want straight out of the box.
  • You can also use a -10 or -8 AN fitting x 1/2" NPT as this is the only 1/2" NPT fuel sump for the highest flow hands down on the market.
  • Includes drain plug, stainless bolts and washer, and Allen key.
  • Pre-assembled with easy 3-bolt installation.
  • Made in U.S.A

The original design of our Fuel Tank Sump Kit by Ohio Diesel Parts provides everything you need to modify your fuel tank to boost performance and improve tank efficiency. NO suction tube. NO need to drop the fuel tank. This sump will feed the biggest performance pumps for all your power needs! Will solve 1/4 tank low issues, issues with your factory or aftermarket draw straw picking up fuel or if you just want the added fuel flow. Design will work on any flat surface, plastic or metal, gas or diesel tanks. These are CNC machined from 6061 billet aircraft aluminum and anodized in a black finish. (Can also ship red finish upon request)


These are conveniently shipped pre-assembled. Comes with either 1/2” or 5/8” ID Hose Barbs so you can run either line size depending on your needs. You can also use a -10 or -8 AN fitting x 1/2" NPT as this is the only 1/2" NPT fuel sump for the highest flow hands down on the market.


Only sump out there that features an interchangeable barb design and square o-ring. New 3-Bolt design equally distributes clamping force around the O-ring for reduced slippage and leaks that occur with 1-Bolt designs while still being easier to install than old style sumps. You get the best of both worlds. Just cut hole and install. Manufactured RIGHT HERE in the U.S.A.


Requires 3” hole saw. Instructions included.


Easy installation. Use a 3” holes saw to cut the hole where you want to install sump. Place top plate through hole, then thread stainless bolts through housing and into top plate. Using a 7/32" Allen key tighten bolt until you have tight seal, 10 ft lbs. if you have a torque wrench should seal it up just fine.


Visit our downloads section for installation instructions!



AirDog II-5G Installation CONTENTS:

  • Airdog Cradkle Bracket
  • Frame Bracket Set
  • Mounting Bracket Hardware
  • Spacer Block
  • Wiring Harness
  • 1.75" Filler Neck Tee w/ Clamps
  • 20ft of 1/2" Fuel Line
  • 1/2" 90 Degree Hose Quick Connect
  • 3/8" 90 Degree Hose Quick Connect
  • 1/2" Straight Hose Quick Connect x3
  • 3/8" Straight Hose Quick Connect
  • 1/2" Male SAE J2044 Quick Connect  x 3/4-16 UNF ORB x2
  • 3/8" Male SAE J2044 Quick Connect x 7/16 ORB
  • 14mm x 1/2" SAE J2044 Fitting w/ Sealing Washer
  • 5/16" Push Lock x 1/4" Male NPT
  • Injection Pump Return Tee
  • "P" Pump Flex Return Line
  • Zip /Cable Ties
  • O-RIng Kit
  •  Manual


  •         Aluminum Housing and Top Plate (Black)
  •         Three (3) 3/8” Steel Bolt w/ Sealing Washer
  •         1/4” -5 O-ring Bass Drain Plug
  •         1/2” ID Hose Barb x 1/2" NPT male Thread
  •         5/8” ID Hose Barb x 1/2" NPT male Thread
  •         Square O-Ring
  •         Installation Instructions



Please call or text (216) 408-6455 any day or time. Someone is always available to answer questions.

AirDog II-5G Air/Fuel Separation System Dodge Cummins 5.9/6.7L DF-100-5G

$900.00 Regular Price
$838.00Sale Price
  • We offer FAST ‘N FREE Priority 2-3 Day Mail through USPS for your Sump. We ship same day as your order when before 3PM EST.

    Your AirDog will ship direct from the manufacturer.

    Includes the contingent 48 states, Hawaii, Alaska, U.S. territories and APO/FPO/DPO.

    International shipping is available at additional cost.