Product Description
Unlock +100 HP with precise fuel delivery. The Industrial Injection 0433175519-R1 extrude-honed injector nozzle is engineered for the early 2003-2004 5.9L Cummins (old-style injector). Each nozzle is balanced after extrude hone to ensure smooth idle, crisp throttle response, and reliable power under load. Sold individually and includes a new copper crush washer.
Key Features
- ~100 HP gain (approx. 25% over stock) with proper tuning and supporting fuel supply
- Better atomization for cleaner burn and improved drivability
- Extrude-honed, balanced, and flow-matched for consistency
- Direct-fit for early 2003-2004 5.9L Cummins “old style common-rail injectors (matches Bosch 5499 nozzle family)
- Sold individually (order six for a complete set)
- Includes new copper crush washer
- 1-Year / Unlimited-Mileage warranty from Industrial Injection
Fitment
- 2003-2004 Dodge Ram 2500/3500 with 5.9L Cummins (24V), early/“old-style injector
Specifications
| Manufacturer | Industrial Injection |
| Part Number | 0433175519-R1 |
| Nozzle Base | Bosch 0433175519 (old-style, matches 5499) |
| Horsepower Increase | ~100 HP (with proper tuning/supporting mods) |
| Flow Increase | ~25% over stock |
| Sold As | Each (qty 6 required per engine) |
| Included | Nozzle, new copper crush washer |
| Emissions | Competition/Race-only; not for on-road use |
| Warranty | 1-Year / Unlimited-Mileage (Industrial Injection) |
| UPC | Not provided by manufacturer |
Recommended Supporting Parts
- Injector Install Kit (seals, washers, hardware)
- CP3 Injection Pump (stock or 10-14mm stroker)
- Matching Nozzle Sizes & Injector Options (03-07 5.9L)
- Shop All Industrial Injection
Will these 0433175519-R1 nozzles fit my 2003-2004 Cummins?
Yes-these are for the early/“old-style common-rail injectors used in 2003-2004 5.9L Cummins trucks. If you have a split model year or swapped components, verify injector style before ordering.
How many do I need?
Nozzles are sold individually. Order six for a complete engine set.
Do I need tuning or a CP3 upgrade?
A healthy stock CP3 can support these, but tuning and a higher-output CP3 (10-12mm) will help you realize the full ~100 HP potential while maintaining safe rail pressure.
Are these emissions legal?
No. These performance parts are for competition/off-road use only. End user is responsible for compliance with all laws.
What else should I replace during installation?
We recommend new injector sealing hardware (install kit), verify connector tubes, and ensure fuel filtration is fresh to protect your injectors.
