Product Description
Step up your LB7 fueling with the Industrial Injection 0433175275DFLY extrude-honed injector nozzle, flowing 50 LPM. Precision-honed orifices improve atomization and support tuned street/working builds when paired with proper air, tuning, and fuel supply.
Fitment
- 2001-2004 GM 6.6L Duramax LB7 (Silverado/Sierra 2500HD/3500)
What's Included
- (1) Extrude-honed injector nozzle - 50 LPM (LB7)
- Intended to be installed on a serviced/cleaned LB7 injector body by a qualified diesel shop
Key Features
- 50 LPM flow to support elevated horsepower with proper supporting mods
- OEM-style spray pattern, precision extrude-honed for consistent delivery
- Built for durability and repeatable performance in demanding use
Recommended Parts (CPP internal links)
- BD Diesel 1050141 LB7 Injector Install Kit
- DTech DT660026 LB7 Injector Installation Super Kit
- Industrial Injection 412604 LB7 Injector Return Line Bolt Kit
- DTech DT660020 LB7 Fuel Return Line Kit
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives (LB7 Nozzle Flows)
- 0433175275-R1 - 26 LPM
- 0433175275-R3 - 31 LPM
- 0433175275-R4 - 33 LPM
- 0433175275-R5 - 39 LPM
- 0433175275-R6 - 44 LPM
Helpful Notes
- Nozzles should be installed and balanced by a qualified diesel injector specialist.
- Match airflow (turbo/intercooler), tuning, and lift-pump supply to the chosen nozzle size.
FAQ
Is this sold as a single nozzle or a set?This listing is for one 50 LPM LB7 nozzle. Order quantity “8 for a complete engine set unless you are replacing a single nozzle.
Do I need my injectors balanced after installing new nozzles?Yes. Professional installation and flow-balancing are recommended to ensure smooth idle, even cylinder fueling, and injector longevity.
What supporting mods are recommended with 50 LPM?At minimum: a healthy CP3, clean fuel filter, lift pump, and appropriate tuning. For higher power, add airflow upgrades (turbo/exhaust) and monitor EGTs.
What if I don't need as much fuel as 50 LPM?Consider 26-44 LPM options listed above to better match towing or stock-turbo builds.
| Specifications for INDUSTRIAL INJECTION 0433175275DFLY | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0433175275DFLY |
| GTIN | Not specified by manufacturer |
| UPC | Not specified by manufacturer |
| Engine Compatibility | 2001–2004 GM 2500/3500 6.6L Duramax (LB7) |
| Configuration | Extrude-Honed Injector Nozzle (DragonFly / 15% over stock) |
| Flow Rate (per nozzle) | Commonly listed ~25 LPM (≈15% over stock) — see product notes |
| Country of Origin | USA |
| Core Charge | None |
| Shipping Weight | Not specified (small parcel; typically < 1 lb packaged) |
| Package Dimensions | Not specified (small box/mailers; compact item) |
| Shipping Method | Parcel/Ground |
| 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 |
