2006-2007 Duramax Stage 4 50% Over Injector Nozzle (0433171924-R4)

The Industrial Injection Stage 4 honed nozzle steps the 2006-2007 6.6L LBZ Duramax injector to 50% over stock fuel delivery — heavier-fuel territory for power builds with supporting fuel system upgrades.

Sold individually as a nozzle only — does not include the injector body.

• 50% over stock fuel delivery
• Precision-honed nozzle from Industrial Injection
• Drop-in replacement nozzle for LBZ Duramax injectors during rebuild
• Sold individually (8 required for a full set)

• Nozzle only — injector body, valve, and internals not included.