Product Description
Unlock crisp atomization and consistent fueling on your LLY with the Industrial Injection 0433171860-R2 extrude-honed injection nozzle (27 LPM / ~30% over). Each nozzle is OE-spec, extrude-honed, flow-balanced, and sold individually for precise upgrades or replacements.
Fitment
- 2004.5–2005 Chevrolet/GMC 2500HD/3500HD — 6.6L Duramax LLY (VIN “2”)
Key Features
- ~27 LPM flow (~30% over) for stronger mid-range and top-end potential
- Extrude-honed and flow-matched for smooth idle and clean smoke control
- Built from brand-new OE-spec components; each unit individually tested
- Sold individually — includes new copper washer
What’s Included
- (1) 27 LPM extrude-honed nozzle with new crush washer
Recommended Parts (CPP Internal Links)
- Injector Return Line Kit (LLY/LBZ/LMM)
- DTech DT660023 Return Line Kit (Alt.)
- GM Duramax CP3 Pumps & Components
- Duramax Injectors & Nozzles Category
Cross-Reference / Alternatives (LLY Nozzle Sizes)
Helpful Notes
- Professional installation and injector test/clean recommended when changing nozzles.
- Tuning is required to realize power gains and maintain safe EGT/smoke with higher-flow nozzles.
- Competition/off-road use may apply; check local emissions laws.
FAQ
Is this a complete injector?No—this listing is for a single nozzle only (sold individually). Swap onto a good injector body or purchase complete injectors separately.
Do I need tuning for 27 LPM?Yes. Even modest over-stock flow benefits from proper calibration to control smoke, rail pressure, and timing.
What else should I replace during install?Refresh return lines and seals while the injectors are out. See the return line kits above for LLY/LBZ/LMM.
How do 27 LPM nozzles compare to other sizes?27 LPM (~30% over) suits street/tow builds with supporting air. For more/less fuel, compare R1/R3/R4/R5/R6 options in the Cross-Reference list.
