Product Description
AirDog A4SPBD137 – FP-150-4G is a 150 GPH original AirDog I-4G lift pump and filtration system engineered for the 1989–1993 Dodge Ram 2500/3500 with the 5.9L 12-valve VE (VE44) Cummins. It mounts to the frame using the included sandwich-plate bracket and uses a high-flow draw straw (FP-150) to pull fuel from the tank, delivering clean, de-aerated fuel directly to the VE injection pump while returning separated air/vapor to the tank via the filler-neck tee.
Vehicle Fitment
- 1989, 1990, 1991, 1992, 1993 Dodge/Ram 2500 & 3500 — 5.9L Cummins 12V (VE/VE44 rotary pump).
Why Choose FP-150-4G?
- High-flow 150 GPH system supports stock to heavy performance builds.
- Removes water, particulates (to ~2 micron via final filter), and entrained air to protect injectors and stabilize rail pressure.
- Frame-mount design with supplied hardware and wiring; clear, step-by-step install manual linked below.
Cross-Reference / Alternatives (AirDog only)
- AirDog A4SPBD136 FP-100-4G (89–93 Cummins, 100 GPH) — same platform, lower flow.
- AirDog R4SBD348 Raptor 4G-100 (89–93) — pump-only solution, 100 GPH.
- AirDog R4SBD349 Raptor 4G-150 (89–93) — pump-only solution, 150 GPH.
Installation Instructions
Download: Original AirDog FP-100/FP-150 — 1989–1993 Cummins Install Manual (Rev. 1-10-24).
Specifications for airdog A4SPBD137
| Attribute | Value |
|---|---|
| Brand | AirDog / PureFlow |
| Part Number | A4SPBD137 (FP-150-4G) |
| UPC | 813094016372 |
| GTIN | 813094016372 |
| Flow Rate | 150 GPH |
| Vehicle Fitment | 1989–1993 Dodge/Ram 2500/3500, 5.9L 12V VE (VE44) Cummins |
| Shipping Weight | ~27 lb (manufacturer listed) |
| Shipping Method | Ground — Free Shipping eligible (per manufacturer listing) |
| Country of Origin | USA |
| Prop 65 | Not specifically listed; see Prop 65 info. |
FAQ
Will FP-150-4G work with my factory mechanical lift pump?
This system replaces the factory supply and feeds the VE injection pump directly. It includes a high-flow draw straw (FP-150) and returns separated air/vapor to the tank. Consult the install manual for the block-off and routing steps.
How is FP-150-4G different from FP-100-4G?
Both are Original AirDog I-4G systems; the FP-150-4G flows 150 GPH and uses a draw straw, making it better for heavier fueling upgrades. The FP-100-4G flows 100 GPH and uses the factory suction line. See the 100 GPH option here: A4SPBD136.
What micron rating are the filters?
The system uses a water separator pre-filter and a final fuel filter rated to around 2 microns to protect the VE pump and injectors. Replace filters per the maintenance section in the manual.
