Product Description
Make your 03–04 5.9L Cummins breathe fire. The INDUSTRIAL INJECTION 0433175519-R4 Extrude Honed Nozzles deliver approximately 250HP gains with a 130% over stock flow profile (~55 LPM), engineered for competition builds that demand maximum fueling headroom. Competition-use only.
Fitment
- 2003–2004 Dodge Ram 2500/3500 — 5.9L Cummins (Common Rail)
- Direct-fit replacement nozzle set for early CR injectors (’03–’04)
Key Features
- Extrude-honed for high, consistent flow (approx. 130% over stock)
- Targeted ~250HP increase with appropriate supporting mods
- Intended for closed-course competition builds
- Requires sufficient high-pressure supply (Dual CP3 strongly recommended)
Specifications
| Manufacturer | Industrial Injection |
|---|---|
| Part Number | 0433175519-R4 |
| UPC | II2144000425 |
| Engine | Cummins 5.9L (Common Rail) |
| Model Years | 2003–2004 |
| Flow Increase | ~130% over stock (~55 LPM) |
| Power Potential | ~250 HP with proper supporting mods |
| Sold | Individually (order quantity as needed) |
| Emissions Note | Competition-use only; not legal for any on-road use |
What’s Included
- (1) Extrude-honed injector nozzle
Recommended Supporting Parts
- Industrial Injection Dual CP3 Kit — 2003–2007 5.9L
- CPP Diesel Injector Feed Tubes — 2003–2018 Cummins 5.9/6.7L
- BD Diesel Injector Install Kit — 2003–2005 5.9L CR
- Shop All 5.9L Cummins CR Injectors & Accessories
For 130% over (~55 LPM) 250HP nozzles, a single stock CP3 typically cannot maintain desired rail pressure under load. Dual CP3s are strongly recommended for safe and consistent fueling.
Are these legal for street use?
No. These are competition-only components. It is the buyer’s responsibility to comply with all local, state, and federal emissions regulations.
Do I need new feed tubes or an install kit?
New feed tubes and a quality install kit help ensure proper sealing, injector balance, and longevity—highly recommended whenever injectors or nozzles are serviced.
How many should I order?
These are sold individually. For a full engine set, order the quantity needed for your injector set.
Emissions Notice
All Industrial Injection performance products are for closed-course competition only. Not for use on any pollution-controlled vehicle on public highways. Buyer is responsible for compliance.
