Product Description
The AirDog A4SPBD137 FP-150-4G Air/Fuel Separation System is designed for 1989-1993 Dodge Ram trucks equipped with the 5.9L 12V Cummins diesel engine. Rated at 150 GPH, this AirDog fuel system delivers clean, air-free diesel fuel while helping improve fuel pressure stability, throttle response, and long-term injection system reliability.
Built with AirDog 4G motor technology, the FP-150-4G removes entrained air, vapor, water, and contaminants from the fuel before it reaches the injection pump. This makes it an excellent upgrade for stock, towing, and performance 1st Gen Cummins applications that need dependable fuel delivery.
Features
- 150 GPH Air/Fuel Separation System
- Designed for 1989-1993 Dodge 5.9L 12V Cummins
- Removes air, vapor, water, and fuel contaminants
- Improves fuel pressure consistency
- Helps protect the injection pump and fuel system components
- Supports stock, towing, and performance diesel applications
- AirDog 4G motor technology for quiet and reliable operation
- Frame-mounted fuel system design
- Complete installation kit for 1st Gen Cummins trucks
Fitment
- 1989 Dodge Ram 5.9L 12V Cummins
- 1990 Dodge Ram 5.9L 12V Cummins
- 1991 Dodge Ram 5.9L 12V Cummins
- 1992 Dodge Ram 5.9L 12V Cummins
- 1993 Dodge Ram 5.9L 12V Cummins
What's Included
- AirDog FP-150-4G fuel air separation pump assembly
- Fuel filters
- Mounting bracket and hardware
- Fuel lines and fittings
- Wiring harness
- Installation hardware
- Installation instructions
Specifications
- Manufacturer: PureFlow AirDog
- Part Number: A4SPBD137
- Model: FP-150-4G
- Flow Rating: 150 GPH
- Fuel Type: Diesel
- Application: 1989-1993 Dodge Cummins 5.9L 12V
- Engine: 5.9L 12 Valve Cummins
- Mounting Location: Frame Rail
- System Type: Air/Fuel Separation System
Cross Reference Numbers
- AirDog A4SPBD137
- A4SPBD137
- FP-150-4G
- AirDog FP150-4G
- PureFlow AirDog A4SPBD137
Frequently Asked Questions
What truck does the AirDog A4SPBD137 fit?
This AirDog FP-150-4G system fits 1989-1993 Dodge Ram trucks equipped with the 5.9L 12V Cummins diesel engine.
How much fuel does this AirDog system flow?
The A4SPBD137 FP-150-4G is rated at 150 gallons per hour, making it a strong upgrade for stock, towing, and performance 1st Gen Cummins applications.
What does an Air/Fuel Separation System do?
It removes air, vapor, water, and contaminants from diesel fuel before it reaches the injection pump, helping improve fuel quality and fuel system reliability.
Is this a complete installation kit?
Yes. This system includes the pump assembly, filters, mounting hardware, fuel lines, fittings, wiring harness, and installation components needed for installation.
Is this good for a performance 12V Cummins build?
Yes. The 150 GPH flow rating is a popular choice for modified 5.9L 12V Cummins trucks that need increased fuel volume and consistent fuel delivery.
