DDP 150HP Injectors | 1998.5-2002 5.9L 24V Cummins No Core

Q: Should I choose the 125HP or 150HP injectors?

The 125HP set is DDP's largest street recommendation targeting 475-525 HP, still appropriate for street-driven builds. The 150HP set is dedicated high performance only with no towing, targeting 500-550 HP. If the truck will ever tow or be street-driven as a daily, stay with the 125HP set.

Q: Will these injectors cause idle lope on a stock VP44?

Possibly. Some VP44-equipped trucks may exhibit a slight idle lope due to the nozzle design. With a modified VP44, oversized injection lines, or oversized connector tubes, lope will likely be significantly more pronounced. This is expected behavior, not a defect.

Q: My build is targeting 600HP - should I use the 150HP injectors?

No. The 150HP set has a ceiling of 500-550 HP. A build targeting 600 HP requires the 200HP injector set.

98.5-02 Dodge 5.9L 24 Valve Cummins DDP 150HP Performance Injector Set

Dynomite Diesel 150HP Injectors - 1998.5-2002 5.9L 24V Cummins

$973.75

Part Number: DDPISB-150
Est. Ship Time: Usually Ships from MFG In 1-3 Days

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

High Performance Applications Only - Upgraded Turbo and Tuner Are Mandatory
The 150HP set is intended for high performance applications with no towing. An upgraded turbo and a tuner are mandatory - not recommendations. Do not order unless both are confirmed. For P-pump converted vehicles: call before purchasing.

The DDPISB-150 is the Dynomite Diesel 150HP injector set for the 1998.5-2002 Dodge Ram 5.9L 24-valve Cummins. SAC nozzle, 7-hole, 290 bar pop pressure. Rated for a ceiling of 500-550 HP with proper supporting modifications. This is a dedicated high-performance injector set - not a street injector, not a towing injector. Upgraded turbo and tuner are mandatory. No core charge. Matched set.

Is This the Right Injector Set?

Buy this if... the build is a dedicated high-performance 1998.5-2002 5.9L 24-valve Cummins with an upgraded turbo and tuner already confirmed, and the target is 500-550 HP with no towing use.
Do not choose this if... the truck is used for towing - DDP specifies no towing for this injector set. Step down to the 125HP set if any towing use is planned.
Do not choose this if... an upgraded turbo and tuner are not both confirmed in the build - both are mandatory at this fuel level.
Do not choose this if... the truck is a P-pump conversion without calling first - call before purchasing for P-pump applications.
Verify before ordering... no towing use, upgraded turbo confirmed, tuner confirmed, truck is 1998.5-2002 24-valve, and shipping address is outside restricted states. P-pump trucks must call first.

High Performance Only - No Towing, No Exceptions

The 150HP set steps past the street ceiling of the lineup. DDP specifies this injector set for high performance applications only with no towing - a meaningful distinction from the 125HP set, which is DDP's largest street recommendation. At this fuel level, the combination of an upgraded turbo and a tuner are mandatory to manage EGTs and smoke output.

A note specific to this injector size: some VP44-equipped trucks may exhibit a slight lope at idle due to the nozzle design. If a modified VP44, oversized injection lines, or oversized connector tubes are installed, that lope will likely be significantly more pronounced. This is expected behavior at this injector size, not a defect.

If any towing use is part of the plan, step down to the 125HP set. If the build is targeting above 550 HP, step up to the 200HP set.

Dedicated performance build, no towing, upgraded turbo and tuner confirmed? The 150HP set is the correct choice. Any towing planned or mandatory hardware not yet in place? Step back to the 125HP set.

P-Pump Converted Vehicles: Call Before Purchasing
Unlike the rest of the DDP 24-valve injector lineup, the 150HP set can be used on P-pump converted vehicles - but a call before purchase is required. Do not order without speaking with us first if the truck is a P-pump conversion.

Idle Lope - What to Expect at This Size

Some stock VP44-equipped trucks will exhibit a slight idle lope with these injectors due to the nozzle design. This is a known characteristic at this fuel level. If the truck has a modified VP44, oversized injection lines, or oversized connector tubes, the lope will likely be significantly more pronounced. Factor this into the build plan before ordering.

Mandatory and Recommended Supporting Parts

An upgraded turbo and a tuner are mandatory with this injector set. The following are also recommended:

DDP Boost Elbow - recommended when possible
Boost fooler or tuner - select by year:

Injector Specs

Application	1998.5-2002 Dodge Ram 5.9L 24-valve Cummins
Nozzle Style	SAC Nozzle
Hole Count	7
Pilot Hole Technology	No
Pop Pressure	290 bar
Rated HP Ceiling	500-550 HP with proper supporting modifications
Turbo Requirement	Upgraded turbo - mandatory
Tuner Requirement	Tuner - mandatory
Towing Use	Not intended for towing applications
P-Pump Compatibility	Can be used - call before purchase
Idle Behavior	Possible slight lope on stock VP44; more pronounced with modified VP44 or oversized lines
Condition	New - matched set
Core Charge	None

Before You Order

Truck is a 1998.5-2002 Dodge Ram 5.9L 24-valve Cummins
Application is high performance only - no towing use
Upgraded turbo is confirmed in the build
Tuner is confirmed in the build
P-pump trucks: called before ordering
Shipping address is outside restricted states

All confirmed? The DDPISB-150 is the correct injector set for your dedicated high-performance 1998.5-2002 24-valve Cummins build targeting 500-550 HP.

Frequently Asked Questions

Click or tap a question below to expand the answer.

Why can't I use these injectors for towing?

DDP specifies the 150HP set for high performance applications only with no towing. At this fuel level, the heat load and fueling demands of towing are not a compatible use case for this injector size. If towing is part of the plan, the 125HP set is the largest DDP recommends for street and towing use.

Can I use these on a P-pump converted 24-valve Cummins?

Unlike other DDP 24-valve injectors, the 150HP set can be used on P-pump converted trucks - but a call before purchase is required. Do not order without speaking with us first if the truck has been converted to a P-pump injection system.

Should I choose the 125HP or 150HP injectors?

The 125HP set is DDP's largest street recommendation - targeting 475-525 HP, requiring an upgraded turbo and tuner, but still appropriate for street-driven builds. The 150HP set steps past the street ceiling into dedicated high-performance territory with no towing use, a 500-550 HP ceiling, and the same mandatory hardware. If the truck will ever tow or be street-driven as a daily, stay with the 125HP set.

Will these injectors cause idle lope on a stock VP44?

Possibly. DDP notes that some VP44-equipped trucks may exhibit a slight idle lope due to the nozzle design at this size. If the truck has a modified VP44, oversized injection lines, or oversized connector tubes, the lope will likely be significantly more pronounced. This is an expected characteristic of this injector size, not a defect.

My build is targeting 600HP - should I use the 150HP injectors?

No. The 150HP set has a ceiling of 500-550 HP with proper supporting modifications. A build targeting 600 HP needs more fuel than this set can support. Step up to the 200HP injectors for that power level.

Is there a core charge on these injectors?

No. There is no core charge on the DDPISB-150. They are sold new as a matched set with no return of old injectors required.