INDUSTRIAL INJECTION 0433171924-R5 GM EXTRUDE HONED INJECTION NOZZLE — 2006–2007 6.6L DURAMAX LBZ — 35 LPM

Step up LBZ fueling with precision. The Industrial Injection 0433171924-R5 extrude-honed injector nozzle flows 35 LPM for tuned 2006–2007 6.6L Duramax LBZ builds. Each OE-sourced nozzle is refined via controlled extrude honing for consistent, repeatable flow to support clean power with the right air, supply, and calibration.

Fitment

• 2006–2007 Chevrolet Silverado/GMC Sierra 2500HD/3500HD
• Engine: Duramax 6.6L LBZ (VIN code “D”)

Contents

• (1) Extrude-honed injector nozzle — 35 LPM (sold individually)

Recommended Supporting Parts (CPP internal links)

• GM Duramax Fuel Lift Pumps — stable supply for high-flow nozzles
• S&S 12mm LBZ-based CP3 or Exergy 12mm Stroker CP3 — maintain rail pressure
• MAHLE GS33505A Injector Seal Kit (LLY/LBZ) or Bostech ISK123 LBZ Seal Kit
• DTech DT660023 Injector Return Line Kit (LLY/LBZ/LMM)
• Shop All Duramax Injectors & Nozzles

Helpful Notes

• Tuning required. Increased flow needs proper calibration, adequate turbo airflow, and strong fuel supply.
• Professional installation recommended. Balance/flow verification keeps cylinder-to-cylinder fueling even.
• For competition/closed-course use where required; follow local emissions laws.

Cross-Reference / Alternatives

• R1 — 24 LPM
• R2 — 26 LPM
• R4 — 30 LPM
• R3 — 38 LPM
• R6 — 40 LPM

FAQ

Yes. Proper calibration is required to match the added fuel with air and rail pressure for clean, safe power.

Nozzles are typically sold individually; order 8 for a full set if you are upgrading all cylinders.

At minimum: a quality lift pump, a higher-output CP3, adequate turbo airflow, and fresh injector seals/return hardware.

Many high-flow fuel components are intended for competition/closed-course use. Verify and comply with local emissions laws.