AIRDOG R4SBD348 RP-4G-100 RAPTOR FUEL PUMP FOR 1989–1993 CUMMINS 5.9L 12V

Product Description

AIRDOG R4SBD348 RP-4G-100 RAPTOR FUEL PUMP is a 100 GPH frame-mounted lift pump engineered for the first-gen Dodge Ram equipped with the 5.9L 12-valve Cummins and VE rotary injection pump (1989–1993). The Raptor-4G motor features a 4-bearing design and internal pressure regulation for stable supply pressure without a return line. Expect improved priming, consistent fuel delivery under load, and a cleaner, more reliable fuel system foundation—perfect for stock to moderate builds.

Vehicle Fitment

• 1989, 1990, 1991, 1992, 1993 Dodge/Ram 250/350/2500/3500
• 5.9L Cummins 12-valve (VE-44 rotary injection pump)

What It Does

• Supplies a steady 100 GPH to the VE pump for improved drivability and reliability
• Internally regulated—no return line required
• Frame-rail sandwich-plate mounting with included hardware

Installation Instructions

Download the official AirDog installation manual here: Raptor-4G RP-4G-100/150 for 1989–1993 Cummins (PDF).

Cross-Reference / Alternatives (AirDog only)

• AIRDOG R4SBD349 — RP-4G-150 (1989–1993 Cummins 5.9L 12V, 150 GPH)
• AIRDOG A7SPBD338 — II-5G DF-100-5G (1989–1993 Cummins 5.9L 12V)
• AIRDOG A7SABD540 — II-5G DF-165-5G (1989–1993 Cummins 5.9L 12V)

FAQ

Does this pump replace the factory mechanical lift pump?
Yes—this is a frame-mounted electric lift pump that supplies the VE pump and eliminates the weak factory mechanical pump.

Is a return line required?
No. The Raptor-4G RP-4G-100 is internally regulated and does not require a return line.

What power level will 100 GPH support?
It’s ideal for stock to moderately upgraded first-gen builds. For higher fuel demand, step up to the RP-4G-150 linked above.

Where does it mount?
On the frame rail using the included sandwich-plate bracket and hardware for a clean, serviceable install.

Specifications for airdog R4SBD348