Product Description
Step up fueling on your 2006–2007 6.6L Duramax with the Industrial Injection 0986435521SE-R1 Reman Performance Injector. This R1 (≈20% over) unit is calibrated to flow ~23 LPM for clean, controllable power when paired with proper air, fuel supply, and tuning.
Fitment
- 2006–2007 Chevy/GMC 2500HD/3500HD 6.6L Duramax LLY/LBZ
What’s Included
- (1) Remanufactured performance injector — 0986435521SE-R1 (~23 LPM)
- New sealing hardware as supplied by manufacturer (core return typically required)
Key Features
- R1 20% over calibration (~23 LPM) for increased fueling headroom
- Precision honed and balanced for consistent cylinder-to-cylinder delivery
- Remanufactured from OE-grade components for durability and reliability
Recommended Parts (CPP Internal Links)
- S&S NEW LBZ-BASED CP3 PUMP (2001–2010) — stable rail pressure for upgraded injectors
- Exergy 2000-BAR RAIL PRESSURE RELIEF VALVE (LLY/LBZ/LMM)
- DTech Injector Lines (LBZ/LMM) — replace aged high-pressure lines
- Dorman Fuel Filter Head Assembly (LLY/LBZ/LMM/LML)
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives
- Bosch 0986435521 — Reman (LBZ) — stock flow option
- Industrial Injection 0986435521SE-IIS — Stock Flow
- Industrial Injection 0986435521SEDFLY — DragonFly (≈22 LPM)
- BD Diesel LBZ Stage 1 (+33%)
Helpful Notes
- Professional installation and custom tuning recommended. Verify balance rates after install.
- Use a quality lift pump/filtration to protect the CP3 and injectors.
FAQ
Is this a single injector or a full set?This listing is for one (1) reman performance injector. Order quantity 8 for a complete set.
How much more does the R1 flow vs. stock?R1 is roughly 20% over stock, calibrated to about 23 LPM when properly tested and referenced.
Do I need a bigger CP3?For best results and to maintain commanded rail pressure under load, an upgraded LBZ-based CP3 is recommended when running higher-flow injectors.
Will these fit both 2006 LLY and LBZ trucks?Yes—this injector family covers 2006–2007 LLY/LBZ applications that share the 0986435521 pattern. Always confirm by VIN before ordering.
