Product Description
Make big, clean power on your late 5.9L. The Industrial Injection 0433175516-R4 Extrude Honed Injection Nozzle delivers approximately 250 HP worth of fueling with a calibrated 130% over / 55 LPM flow increase. Perfect for competition builds that have the air and high-pressure supply to match.
- Part #: 0433175516-R4 (R4)
- Flow/Output: 130% over, ~55 LPM, ~250 HP potential (with appropriate air and fuel system)
- Sold: Individually (1 nozzle) — includes new copper crush washer
- Application: 2004.5–2007 Ram 2500/3500 with 5.9L Cummins common-rail (late 5.9)
- Use: Competition-only; requires tuning and supporting mods
- UPC (Barcode): 840256900972
Fitment
Fits the following vehicles:
- 2004.5, 2005, 2006, 2007 Ram 2500/3500 — 5.9L Cummins 24V (common-rail, “late 5.9”)
Recommended Supporting Parts
At this power level we strongly recommend the following upgrades to ensure adequate rail pressure and air supply:
- CP3 Injection Pumps (03–07 5.9L)
- Dual CP3 Kits & Components (03–07 5.9L)
- Injector Feed/Connector Tubes (03–18 Cummins)
- 03–07 5.9L Injectors (matched sets)
What’s Included
- (1) Industrial Injection R4 Extrude Honed Nozzle
- (1) New copper crush washer
Specifications
| Manufacturer | Industrial Injection |
|---|---|
| Manufacturer Part # | 0433175516-R4 |
| Flow Increase | ~130% over stock |
| Estimated Fuel Rate | ~55 LPM |
| Estimated Power | ~250 HP potential (with proper air/fuel/tuning) |
| Sold As | Individual nozzle (one) |
| Includes | Copper crush washer |
| Vehicle Fitment | 2004.5–2007 Ram 2500/3500 5.9L Cummins (late 5.9 CR) |
| UPC | 840256900972 |
| Emissions Note | Competition-only; not legal for on-road use |
Helpful Notes
- Fuel Supply: This nozzle size typically requires dual CP3s or a high-output CP3 to maintain commanded rail pressure at WOT.
- Tuning Required: Custom ECM calibration is necessary to optimize drivability, EGT, and smoke output.
- Air System: Match with an appropriately sized single or compound turbo system to keep EGTs in check.
- Calibration: Always have nozzles calibrated to your specific injectors for best results.
FAQ
Is this sold as a set or individually?Sold individually. Order six (6) for a full engine set.
Do I need dual CP3s with R4 nozzles?In most builds, yes. The 130%/55 LPM flow commonly requires dual CP3 or an equivalent high-output fuel system to hold rail pressure under load.
Is this street legal?No. These are competition-only components and are not legal for on-road use.
Will these work on early 2004 (pre-2004.5) trucks?No. These are for late-2004.5 to 2007 common-rail 5.9L applications only.
Do I need new feed tubes when installing?It’s good practice to install fresh connector/feed tubes to prevent return leakage. See our recommended feed tubes.
