DDP Stage 1 Injectors | 1994-1998 5.9L 12V Cummins 400HP

Name: 94-98 Dodge 5.9L 12V Cummins Dynomite Diesel Stage 1 Injector Set
Brand: Dynomite Diesel
SKU: DDP9498-1
Price: 736.25 USD
Availability: InStock

Dynomite Diesel Stage 1 Injectors - 1994-1998 5.9L 12V Cummins

$736.25

Part Number: DDP9498-1
Est. Ship Time: Usually Ships from MFG In 1-3 Days

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Not for Sale in California or Colorado
This injector set cannot be sold or shipped to CA or CO addresses. Verify your shipping address is eligible before ordering.

The DDP9498-1 is a Stage 1 matched injector set for the 1994-1998 Dodge Ram 5.9L 12-valve Cummins. Sold brand new with no core required, these injectors support up to 400 RWHP with proper supporting modifications and feature Dynomite Diesel's patented Pilot Hole Technology for cleaner combustion and improved spool behavior. This is a step up from the Economy Series - choose this when the build has a power goal, not just a replacement need.

Is This the Right Injector Set?

Buy this if... your truck is a 1994-1998 5.9L 12-valve Cummins and your build is targeting up to 400 RWHP with supporting modifications.
Do not choose this if... your goal is a stock-spec replacement with no performance intent - the Economy Series is the correct choice for that application.
Verify before ordering... your truck is a second-gen 12-valve (1994-1998), your build supports 400 RWHP, and your shipping address is outside restricted states.

Stage 1 vs. Economy Series - What Actually Changes

The Economy Series is the right injector for a reliable daily driver or stock rebuild. The Stage 1 is the first step up the performance ladder - it flows enough fuel to support up to 400 RWHP when the rest of the build is ready for it. On a stock or mildly built truck, the Stage 1 delivers better throttle response and improved spool behavior over stock, with the headroom to grow. The pilot hole nozzle (5 holes + 2 pilots) keeps combustion clean and reduces smoke at partial load.

400 RWHP ceiling, cleaner burn, better spool. Choose this when the build has a power goal. Stay with the Economy Series if stock-quality replacement is all that is needed.

Injector Specs

Application	1994-1998 Dodge Ram 5.9L 12-valve Cummins
Stage	Stage 1 - supports up to 400 RWHP
Nozzle Style	SAC nozzle, 5-hole + 2 pilot holes (patented)
Hole Count / Flow	5x11, 44 LPM, 155 degrees
Pop Pressure	270 BAR
Recommended Timing	17-18 degrees
Copper Washer	0.5mm included
Condition	Brand new matched set
Core Charge	None

Full 94-98 12-Valve Injector Lineup

Dynomite Diesel offers the full range for the 1994-1998 second-gen 12-valve platform:

Avoid These Common Mistakes

Ordering Stage 1 for a stock-spec replacement. If there is no power goal and the truck just needs reliable injectors, the Economy Series is the better fit and a more cost-effective choice.
Expecting 400 RWHP from the injectors alone. The 400 RWHP ceiling requires supporting modifications. The injectors provide the fuel to support that level - the rest of the build must be able to use it.
Ordering for a 1989-1993 or 1999+ 12-valve. These injectors are specific to the 1994-1998 second-gen 12-valve 5.9L Cummins. Verify your exact year before ordering.
Not adjusting timing after installation. Dynomite recommends 17-18 degrees timing for this set. Verify your pump timing is set correctly after the swap.

Before You Order

Truck is a 1994-1998 Dodge Ram 5.9L 12-valve Cummins
Build is targeting performance, not stock-spec replacement
Pump timing can be set to 17-18 degrees after installation
Shipping address is outside restricted states

All four confirmed? The DDP9498-1 is the correct Stage 1 injector set for your second-gen 12-valve Cummins build.

Frequently Asked Questions

Click or tap a question below to expand the answer.

What is the difference between Stage 1 and the Economy Series?

The Economy Series is an OEM-quality replacement with a slight gain over stock - correct for a daily driver or stock rebuild with no power goals. The Stage 1 flows enough fuel to support up to 400 RWHP with supporting modifications. If the build has a power target, Stage 1 is the right starting point. If the goal is just reliable replacement, the Economy Series is the better fit.

Will Stage 1 injectors make 400 HP on a stock truck?

No. The 400 RWHP rating is the ceiling the injectors can support with proper supporting modifications - the injectors supply the fuel, but the rest of the build needs to be able to use it. On a stock truck, the Stage 1 will deliver improved throttle response and better spool behavior over stock.

What timing is recommended for DDP Stage 1 injectors?

Dynomite Diesel recommends 17-18 degrees timing for the Stage 1 set. Verify your injection pump timing is within that range after installation. Note that the Economy Series calls for 15-16 degrees - the Stage 1 spec is higher.

Is a core return required for this injector set?

No. These injectors are sold as a brand new matched set with no core charge and no core return required.

Will these injectors fit a 1994-1998 second-gen 5.9L Cummins?

Yes. These injectors are specific to the 1994-1998 Dodge Ram 5.9L 12-valve Cummins (second-gen platform). They are not compatible with the 1989-1993 first-gen or 1999+ applications. Verify your exact model year before ordering.