No one really knows why the engineers decided to switch to a CP4 injection pump for the 2019 and 2020 model years, departing from the tried and true CP3 pumps that had been used since 2003, but they did. Apparently Ram or Cummins wasn't keeping an eye on the failure rates of Duramax and Powerstroke CP4's. But, at least they decided to switch it back to a CP3 in 2021. Now, the best way to ensure your CP4 live a long happy life is to add reliable, consistent fuel pressure and clean diesel fuel. And guess what, you can achieve both by upgrading your Cummins with an AirDog Air Fuel Separation Lift Pump!
The AirDog II-5G is an all in one premium fuel pump and filtration
system for your 2019-2020 Cummins diesel. This system removes water,
particulates, and entrained air from the diesel fuel. The entrained air
that is separated from the fuel is returned to the tank through a small
return fitting. The fuel is delivered to the engine at the correct
pressure and flow rate to meet the demands of the engine under all
operating conditions.
The AirDogII-5G
DF-220 systems feature a built in adjustible diaphragm pressure
regulator. All AirDog II-5G systems include a complete installation kit.
The AirDog II-5G, for this particular application, is preset at 13-15
psi from the factory for a stock application. The regulator is adjustible up
to 55 PSI so
you can fine tune the system to perfectly match up to your
current and future performance upgrades.
HOW IT WORKS:
The
AirDog II-5G DF- 165 draws fuel from the fuel tank through a 1/2”
suction line and the DF-220 draws fuel through a 5/8” suction line to
reduce the risk of cavitation at the pump. The fuel is then drawn
through the water separator where 92% of water is removed per SAE spec
1488. It is then pressurized through a Gerotor pump and sent to the 2
micron fuel filter before it is sent to the injection pump. The air from
aerated fuel, due to tank sloshing and engine return lines, is
separated and sent back to the tank through the 3/8” return fitting. The
excess fuel that the engine does not use is recirculated through the
diaphragm regulator back to the suction side of the pump. 
California Air Resource Board D-595-5 Specifications
- SkuPF-A7SABD530
- ManufacturerAirDog | PureFlow Technologies
- MPNA7SABD530
MANUFACTURING:
- PureFlow AirDog products are manufactured in Shelbyville Indiana by a team of skilled workers with unsurpassed attention to detail and using the most stringent quality assurance.
KIT CONTENTS:
- (1) AirDog II-5G DF-220
- (1) AirDog II Mounting Bracket
- (1) Frame Bracket
- (1) Spacer
- (1) Mounting Hardware Kit
- (1) Wiring Harness
- (1) Bundle of Plastic Ties
- (1) 5/8” High Flow Suction Tube
- (1) 14ft of Fuel Line
- (1) 7ft of 5/8” Fuel Line
- (1) 1/2” Straight Hose Quick Connect Fitting
- (1) 1/2" 90 Degree Hose Quick Connect Fitting
- (1) 3/8” 90 Degree Hose Quick Connect Fitting
- (1) 3/8” Straight Hose Quick Connect Fitting
- (2) 3/4-16 ORB Male to -10 JIC Female Fitting
- (2) -10 JIC Male to 5/8” Barb
- (1) 1/2” Male J2004 Quick Connect x 3/4-16” UNF
- (1) 3/8” Male J2004 Quick Connect x 7/16” UNF
- (1) Customer Service O-ring Replacement Kit
FEATURES & BENEFITS:
- Supports 800+ horsepower (if you have less horsepower than this, consider an AirDog 100 or 165)
- Flows 220 Gallons Per Hour
- Preset at 13-15 PSI
- Variable fuel pressure
- 3/4-16 o-ring boss (-8) inlet and outlet ports
- 7/16-20 ORB return port (-4)
- 4 bearing design with intermediate shaft to reduce pump noise and increase reliability
- Low flow fuel return to reduce aeration in the tank
- Demand Flow: only feeds as much fuel as what the engine needs
- Dual feed that feeds fuel to both sides of the Gerotor Pump to decrease cavitation
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Airdog II-5G 220 GPH Air Fuel Separation Lift Pump System 19-20 Ram 6.7L Cummins
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