Product Description
Clean, consistent fueling for your LLY. The INDUSTRIAL INJECTION 0433171860-R1 extrude-honed injector nozzle flows 25 LPM (Race 1) for a crisp bump in power with excellent atomization when properly calibrated. OE-sourced Bosch tips are precision-honed and flow-matched for repeatable results-ideal for street/tow LLY builds looking for +HP without excessive smoke.
Fitment
- 2004.5-2005 Chevrolet Silverado 2500/3500 HD 6.6L Duramax LLY
- 2004.5-2005 GMC Sierra 2500/3500 HD 6.6L Duramax LLY
What's Included
- (1) Extrude-honed Bosch-style injector nozzle/tip - 25 LPM
Key Features
- OE-sourced nozzles, then precision extrude-honed and balanced
- 25 LPM (Race 1) flow for street/tow use with tuning
- Improved atomization to help control EGT/smoke when calibrated
- Sold individually - order eight (8) for a complete set
Recommended Parts (CPP Internal Links)
- Injector Installation Kit (2004.5-2010 Duramax)
- Injector Return Line Kit (LLY/LBZ/LMM)
- Exergy 12mm Stroker CP3 (LLY) or DTECH Reman CP3 (LLY)
- EGT / Boost Gauges (AutoMeter at CPP)
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives (LLY nozzle sizes)
- 0433171860-R2 - 27 LPM
- 0433171860-R3 - 29 LPM
- 0433171860-R4 - 32 LPM
- 0433171860-R5 - 37 LPM
- 0433171860-R6 - 42 LPM
- 0433171860DFLY - 24 LPM (DragonFly)
Helpful Notes
- Professional installation required. Nozzle swaps require proper setup and cleanliness.
- Always pair with appropriate tuning and verify rail pressure, balance rates, and EGT/boost when testing.
- Sold individually-order quantity 8 for a complete engine set.
FAQ
How much power is a 25 LPM (Race 1) nozzle good for?Industrial Injection rates nozzles by flow (LPM) rather than fixed HP because gains depend on turbo, CP3, tuning, and supporting mods. Race 1 (25 LPM) is commonly used for mild street/tow builds with clean drivability.
Do I need to buy eight nozzles?Yes-each nozzle is sold individually. Order eight for a complete V8 set.
Will these work with stock injectors?Yes-these are tips for Bosch-style LLY injectors. Ensure your injectors are healthy and that tuning matches the new flow rate.
Do I need other parts when installing?We recommend fresh seals (install kit), inspecting/refreshing return lines, verifying lift/CP3 supply, and monitoring EGT/boost during calibration.
| Specifications for INDUSTRIAL INJECTION 0433171860-R1 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0433171860-R1 |
| GTIN | 00840256900415 |
| UPC | 840256900415 |
| Engine Compatibility | 2004.5–2005 GM 6.6L Duramax LLY |
| Configuration | Extrude-Honed Injector Nozzle, Race 1, 25 LPM (sold individually; purchase 8 for a set) |
| Country of Origin | USA |
| Core Charge | No core required |
| Shipping Weight | 1 lb (each) |
| Package Dimensions | 6" × 4" × 2" (each) |
| Shipping Method | Ground / 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. |
