DDP Stage 4 Injector Set – 1994-1998 5.9L 12-Valve Cummins (DDP9498-4)

Push your second-gen 12-valve Cummins to the limit with the Dynomite Diesel Stage 4 injector set. These brand-new, matched injectors support 850–900 RWHP (900+ with a properly built 13mm P-pump) and are built for serious off-road and competition use.

Key Features

• Patented Pilot Hole Technology (SAC 5-hole + 2 × 0.005" pilots) for improved spool and reduced smoke compared to similarly sized injectors
• 63 LPM flow (5 × 14 nozzles, 155° spray)
• 270 BAR pop pressure
• 0.5 mm copper washers included
• Sold as a complete brand-new matched set of 6 — no core charge

Requirements & Recommendations

• Heavily modified P-pump (13mm recommended)
• Upgraded turbo(s)
• Timing typically 23–28° (consult for your specific RPM and use)
• Performance delivery valves highly recommended to take full advantage of the flow
• Not intended for street use due to high smoke output

Fitment: 1994–1998 Dodge Ram 2500/3500 5.9L 12-valve Cummins (P7100).

These are the largest injectors in DDP’s 12-valve lineup and are intended for well-supported, high-power builds only. If your truck sees regular street driving, consider the Stage 3 set instead.