Product Description
Step up fueling on your 2006–2007 Duramax with the INDUSTRIAL INJECTION 0986435521SE-R2 (Race 2) reman injector. Flow-calibrated to ~25 LPM (~30% over), this single replacement injector is built from genuine Bosch components and balanced for clean power when paired with proper tuning and air/fuel support.
Fitment
- 2006–2007 GM 6.6L Duramax LLY/LBZ (2500HD/3500HD)
What’s Included
- (1) Remanufactured Bosch-based injector — 0986435521SE-R2
- New sealing washer & O-rings (per injector)
- Core required (return per CPP policy)
Recommended Parts (CPP internal links only)
- LBZ Injector Install Seals & Hardware
- S&S 12mm LBZ-Based CP3 Pump (01–10)
- S&S 12mm High-Speed CP3 + SP3000 Supply
- Bosch 0986435521 LBZ Reman Injector (Alternative Brand)
Cross-Reference / Alternatives (flow options)
- 0986435521SE-IIS — Stock Flow
- 0986435521SE-R1 — ~23 LPM
- 0986435521SE-R3 — ~27 LPM
- 0986435521SE-R4 — ~29 LPM
- 0986435521SE-R5 — ~33 LPM
- 0986435521SE-R6 — ~38 LPM
Helpful Notes
- Professional installation and calibration recommended. Verify balance rates after install.
- On higher-than-stock flow (R2+), a healthy CP3 and lift pump are strongly recommended to maintain rail pressure.
FAQ
Will this injector fit both 2006 LLY and 2006–2007 LBZ?Yes. Mid-2006 trucks used the LLY code with LBZ-style hardware; this injector fits 2006 LLY and 2006–2007 LBZ applications. Verify by VIN/engine code.
How much flow is “R2” 25 LPM?
Industrial Injection designates R2 as roughly 30% over stock, calibrated around 25 LPM. Pair with sufficient air and fuel supply and proper tuning.
Is a core charge required?
Yes. Return your usable core to recoup the core deposit per CPP’s core policy.
Do I need to replace all eight injectors?
You can replace singles, but for performance builds or higher mileage, a matched set is recommended for consistent balance rates.
