Product Description
AIRDOG R4SBD360 RP-4G-150 is the 150 GPH Raptor 4G lift pump engineered for the 1998.5–2002 Dodge Ram 2500/3500 5.9L 24-Valve Cummins (VP44) equipped with the factory in-tank lift pump. This frame-mounted system improves fuel supply to the VP44, reduces aeration and cavitation, and helps maintain stable pressure under load for better throttle response, reliability, and tune headroom.
Vehicle Fitment
- 1998.5–2002 Dodge Ram 2500/3500, 5.9L Cummins 24-Valve (VP44), trucks that have the OEM in-tank fuel pump module.
Cross-Reference / Alternatives (Airdog only)
- Prefer 100 GPH with in-tank module? AIRDOG R4SBD355 (RP-4G-100) for 98.5–02 Cummins with in-tank pump
- No in-tank module on your truck? AIRDOG R4SBD052 (RP-4G-150) for 98.5–02 Cummins without in-tank pump
- Direct factory replacement block-mount pump: AIRDOG R3SBD100 (FRRP-100) for 98.5–02 Cummins
What’s Included
- Raptor 4G RP-150 pump assembly with integral filters/ports
- Frame-mount bracket & hardware
- Electrical harness with relay/fuse
- Hose, fittings, and install components for listed fitments
- Instructions & warranty information
Installation Instructions
Find the latest Airdog/Raptor install manuals here: PureFlow AirDog Resources (PDF manuals).
Why Buy from CPP Diesel
- Diesel experts with VP44-era experience
- Fast, free ground shipping on most Airdog pumps
- Real-world tech support and proven parts combos
Frequently Asked Questions
Will this RP-4G-150 work if my truck has the in-tank pump?
Yes—R4SBD360 is the 150 GPH kit specifically for 1998.5–2002 VP44 trucks that already have the OEM in-tank lift pump module.
Do I need a draw straw or sump with this kit?
No additional draw straw is required for trucks with the factory in-tank module; this kit is designed to supply fuel from that configuration.
Is 150 GPH too big for a stock VP44?
No—the 150 GPH pump provides stable supply and headroom for future upgrades; pressure is regulated. For stock/tow setups you can also choose the 100 GPH R4SBD355.
What pressure should I see at the VP44?
Typically 12–16 PSI at idle with minimal drop under load. Always verify with a quality gauge or sensor at the pump inlet.
Does this replace the block-mounted lift pump?
On 98.5–02 trucks with in-tank modules, the frame-mounted Raptor 4G becomes the primary lift pump. If you need the factory-style block-mount replacement, see the FRRP-100 linked above.
Specifications for airdog R4SBD360
| Brand | Airdog (PureFlow) |
|---|---|
| Part Number (MPN) | R4SBD360 (RP-4G-150) |
| Flow Rate | 150 GPH |
| Engine/Platform | 1998.5–2002 Dodge Ram 2500/3500, 5.9L 24V Cummins (VP44) with OEM in-tank fuel pump |
| UPC | 813094013609 |
| GTIN | 813094013609 |
| Shipping Info | Typically ships free via standard ground. Ships from CPP Diesel warehouse or manufacturer. |
| Prop 65 | WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov |
