Product Description
Industrial Injection 0433175519-R5 Extrude Honed Nozzles – 350HP for 03–04 5.9L Cummins
Unlock serious common-rail power with a balanced, flow-matched set of extrude-honed 65 LPM nozzles engineered by Industrial Injection. Purpose-built for 2003–2004 Dodge Ram 2500/3500 5.9L Cummins, these R5 nozzles support ~350 HP when paired with proper fuel, air, and tuning upgrades. Each set is calibrated to deliver smooth idle quality, clean atomization, and repeatable performance.
- Direct-fit for 2003–2004 5.9L Cummins common-rail injectors (8-hole Bosch bodies)
- Extrude-honed & flow-matched as a set for consistency
- Supports ~350 HP (approx. 65 LPM) with the right supporting mods
- Ideal for street/strip builds, towing with turbo and CP3 upgrades, or weekend play
Fitment
2003–2004 Dodge Ram 2500/3500 with 5.9L Cummins (24-valve common rail, early CR). Verify injector style before purchase.
Specifications
| Manufacturer | Industrial Injection |
| Part Number | 0433175519-R5 |
| Nozzle Base P/N | 0433175519 (Bosch base) |
| Flow Rating | ~65 LPM (R5) |
| Estimated Power | ~350 HP with supporting mods |
| Process | Extrude-honed, balanced & flow-matched as a set |
| Engine | 5.9L Cummins (CR) – 2003–2004 |
| Quantity | Set of 6 nozzles |
| UPC | N/A (manufacturer does not publish a UPC for this race component) |
What’s Included
- (6) Extrude-honed, flow-matched injector nozzles
- Calibration/flow documentation (as provided by manufacturer)
Recommended Supporting Parts
- CP3 Injection Pump Upgrades (03–07 5.9L): Shop CP3 pumps
- Tuners/Monitoring (03–07 5.9L): Shop tuners, chips & monitors
- Lift Pump / Supply Upgrades (03–04): BD 1050227 OEM Bypass Lift Pump or BD 1050231 OEM Replacement Lift Pump
- Head Studs (recommended for elevated cylinder pressures): ARP 247-4204 625 Series
- Injector/CR Components & Install Accessories: 5.9L CR injectors & install parts
Helpful Notes
- Professional installation and injector nozzle swap tools are strongly recommended.
- Tuning, adequate CP3 supply, and a higher-flow turbo/exhaust are recommended to realize full gains.
- Intended for off-road/competition use where applicable local laws permit.
FAQ
Do these nozzles fit all 2003–2004 5.9L Cummins injectors?They are designed for 2003–2004 5.9L common-rail injectors using the Bosch 0433175519 base nozzle. Always verify your injector style and year split (early 03–04 vs. 04.5–07) before ordering.
What supporting mods are required for the advertised ~350 HP?Plan on a healthy CP3 pump, a lift pump, appropriate tuning, and a higher-flow turbo/exhaust to provide adequate air and fuel delivery. See our recommended parts above for proven options.
Are these street legal?These are performance nozzles. Emissions legality varies by region; check local and state laws before use on public roads.
Do I need head studs?Head studs are strongly recommended on elevated boost/drive pressure builds to maintain head gasket integrity.
