Product Description
Wake up your 6.7L Cummins with Industrial Injection's 0433172145-R4 extrude-honed injector nozzle. Engineered for balanced flow and crisp atomization, the R4 nozzle supports ~250 HP over stock when paired with the proper fuel and air supply. For even more power, the R5 (350 HP) variant is available. Competition/off-road use only where applicable.
Fitment
- 2007.5-2012 RAM 2500/3500 6.7L Cummins (24V, common-rail)
What's Included
- (1) Extrude-Honed Injector Nozzle (R4, 250HP) - nozzle only
- Installation requires removal of injector and professional setup/calibration
Key Features
- Extrude-honed orifices for balanced flow and improved atomization
- Precision-matched to OE-spec bodies for reliability
- Proven power gains: R4 ≈ 250 HP over stock; R5 ≈ 350 HP over stock
Power Level & Fuel System Notes
- R4 (250HP) - Strongly recommended: dual CP3 fuel supply and appropriate turbo/airflow.
- R5 (350HP) - Requires dual CP3s and significant airflow upgrades.
Recommended CPP Parts (Internal Links)
- Industrial Injection Dual CP3 Kit w/ Pump (07.5-18 6.7L)
- Industrial Injection Dual CP3 Kit - Kit Only (07.5-18)
- Shop 6.7L Cummins Injectors & Install Accessories
- Injector Seal/Connector Kits & Tools (6.7L)
- High-flow Fuel Rail / PRV Solutions
Cross-Reference / Alternatives
Helpful Notes
- Tuning required. Calibrate fueling and timing for safe EGTs and rail pressure.
- Calibration/flow-matching recommended. Have nozzles calibrated to your injectors for best results.
- Fuel supply. R4/R5 setups typically need a dual-CP3 system to maintain commanded rail pressure under load.
- Emissions. Intended for competition/off-road where permitted. Verify local laws.
FAQ
Is this sold as a set or individually?Nozzles are commonly sold individually. Order the quantity needed for your cylinder count and have a qualified shop install and calibrate.
Do I need dual CP3s with the R4/R5?Yes-at these flow rates a dual CP3 system is strongly recommended (R4) and effectively required (R5) to hold rail pressure at WOT.
Will my stock turbo be enough?R4 can outrun a stock turbo; plan for a larger turbo/air system and careful tuning. R5 requires significant airflow upgrades.
Do I need custom tuning?Yes. Increased nozzle flow changes fueling. Proper ECU calibration is critical for power, smoke control, and reliability.
| Specifications for INDUSTRIAL INJECTION 0433172145-R4 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0433172145-R4 |
| GTIN | 00840256900668 |
| UPC | 840256900668 |
| Engine Compatibility | 2007.5–2012 RAM 2500/3500 6.7L Cummins (common-rail) |
| Configuration | Extrude-Honed Injector Nozzle, R4 (115% over), ~250 HP; Alt: R5 (~350 HP) |
| Country of Origin | USA |
| Core Charge | Not applicable (no core on nozzle) |
| Shipping Weight | 1.00 lb |
| Package Dimensions | 11" × 5" × 3" |
| Shipping Method | Ground / Small Parcel |
| Prop 65 Warning | This product can expose you to chemicals including lead and chromium, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn More |
