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This AirDog fuel pump is configured for performance fuel delivery. Select it by required flow, operating pressure, fuel compatibility, mounting location, port sizes, and electrical demand rather than horsepower claims alone. It replaces the factory lift pump and filter assembly to deliver 100% air-free, vapor-free, and water-free fuel directly to the injectors.
Key Features
- Purpose-built fuel-pump configuration for the listed pressure and flow requirements
- Port, mounting, electrical, and fuel requirements are specific to this model
- It replaces the factory lift pump and filter assembly to deliver 100% air-free, vapor-free, and water-free fuel directly to the injectors.
- Exact manufacturer part number: A7SPBD338
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| Universal or specification-matched application. Verify every pressure, flow, fuel, port, electrical, dimensional, and system requirement. | |||
Specifications
| Brand | AirDog |
|---|---|
| Manufacturer Part Number | A7SPBD338 |
| Product Type | Fuel Air Separators |
| Condition | New |
| Configuration | II-5G 89-93 Dodge 12V 5.9L Cummins DF-100-5G Fuel Air Separation System |
| Type | Fuel Air Separation System |
| Compatibility | 1989-1993 Dodge Ram 2500/3500 5.9L 12V Cummins Diesel |
| Part Number | DF-100-5G |
| Flow Rate | 125 GPH |
| Max Pressure | 100 PSI |
| Weight | 17 lbs |
| Country of Origin | United States |
| Warranty | Lifetime Limited |
| Pressure Range | 100 PSI |
What's Included
One AirDog fuel air separator in the exact configuration and quantity identified by this listing. Additional fittings, hoses, filters, wiring, relays, regulators, brackets, seals, tuning, and hardware are included only when expressly stated.
About AirDog
AirDog and PureFlow DieselRX products support diesel fuel delivery, air separation, filtration, glow-plug service, and related installation needs. Exact flow rating, pressure, engine application, fittings, wiring, filters, and service intervals vary by part number.
Related Parts
- PureFlow AirDog II-5G 01-10 Chevrolet 6.6L Duramax DF-220-5G Fuel Pump
- PureFlow AirDog II-5G 94-98 Dodge 12V 5.9L Cummins DF-165-4G Fuel Pump
- Shop the complete AirDog collection
Frequently Asked Questions
How do I size the II-5G 89-93 Dodge 12V 5.9L Cummins DF-100-5G Fuel Air Separation System for my engine?
Use target power, fuel type, base pressure, boost pressure, voltage at the pump, and expected duty cycle. Follow AirDog's current flow data for this exact model and include a safe capacity reserve.
Can this pump be used with E85, methanol, or diesel?
Fuel compatibility is model specific. Use only the fuels AirDog lists for this exact part number; do not infer compatibility from another pump in the same series.
Does this pump require a return-style fuel system?
That depends on the pump, regulator, controller, and vehicle strategy. Confirm the complete system design rather than selecting the pump by flow rating alone.
What wiring is required for this pump?
Size wire, fuse, relay or controller, grounds, and connectors for the manufacturer's current draw and voltage requirements. Voltage drop directly reduces pump performance.
Should a pre-filter and post-filter be used?
Use the filtration layout and micron ratings AirDog specifies for this exact pump and fuel. Incorrect filtration can restrict flow or damage the pump and injectors.
Installation Instructions
- Confirm AirDog part number A7SPBD338, the complete system design, fuel or fluid type, and all required supporting components.
- Relieve system pressure, disconnect electrical power, work in a ventilated area, and eliminate ignition sources before opening any fuel connection.
- Install with the exact port sizes, seals, mounting orientation, line support, filtration, wiring, and torque values in AirDog's current instructions.
- Prime and pressure-test the complete system; inspect every joint, seal, vent, and electrical connection for leaks, heat, abrasion, and voltage drop.
- Verify stable pressure and safe operation under load, then recheck fittings and mounting after the initial heat cycles.
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