Product Description
Turn up your LB7 the right way. Industrial Injection’s Race 6 extrude-honed nozzle flows 44 LPM and is engineered, balanced, and tested for smooth fueling under big boost. Each new OE-spec nozzle includes a crush washer and is sold individually so you can service one cylinder or build your own set.
Fitment
- 2001–2004 GM 6.6L Duramax LB7 (Chevy Silverado/GMC Sierra 2500HD/3500)
What’s Included
- (1) Extrude-honed injector nozzle — 44 LPM (Race 6)
- (1) Copper crush washer
Key Features
- New OE-spec nozzle, precision extrude-honed and flow-matched
- Improved atomization for lower EGT potential and cleaner power
- Individually tested on a state-of-the-art bench
- Sold individually — buy 1–8 as needed
- 1-year, unlimited-mileage manufacturer warranty
Recommended Parts (CPP Internal Links)
- BD Diesel 1050141 LB7 Injector Install Kit — lines, gaskets, seals
- DTech DT660020 LB7 Injector Return Line Kit
- MAHLE GS33757 Valve Cover & Injector Seal Kit
- Industrial Injection 412604 LB7 Return Line Bolt Kit
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives
Helpful Notes
- Professional cleaning and injector body inspection recommended when swapping nozzles.
- Match nozzle size to turbo air supply, lift pump, and tuning to avoid excessive smoke/EGT.
- For a complete upgrade, consider new/balanced performance injectors built with SAC-style tips.
FAQ
Is this a single nozzle or a set?This listing is for one 44 LPM nozzle with washer. Order quantity 8 for a full engine set.
Do I need tuning?Yes. Any significant increase in fuel flow should be paired with proper ECU calibration and adequate airflow to manage smoke and EGT.
Will it work with the stock turbo?It can be used with the stock charger on mild tunes, but a higher-flow turbo and lift pump are recommended for best results.
What else should I replace during the job?At minimum, new return line seals/bolts and valve cover/injector seals. Many installers use a complete LB7 injector install kit for reliability.
