Product Description
Step up fueling on your 2006-2007 Duramax with the INDUSTRIAL INJECTION 0986435521SE-R4. This Race-4 reman injector flows ~29 LPM (about 50% over stock), precision matched for smooth idle and strong, clean power when paired with proper air, fuel supply, and tuning. Direct fit for 2006 LLY and 2006-2007 LBZ applications.
Fitment
- 2006 LLY 6.6L Duramax (early 2006 models)
- 2006-2007 LBZ 6.6L Duramax
What's Included
- (1) Remanufactured injector - 0986435521SE-R4 (Race-4 / ~29 LPM)
- Pre-installed nozzle and internal components to Industrial Injection spec
- Core return required (see cart for details)
Key Features
- ~29 LPM flow (approx. 50% over stock) for added fueling headroom
- Matched & balanced for consistent cylinder-to-cylinder delivery
- Reman OEM Bosch body with new critical wear parts
- Direct-fit LBZ/LLY connector & body style for 2006-2007 trucks
Recommended Parts (CPP internal links only)
- AirDog II-5G DF-100 (LB7/LLY/LBZ) - maintains rail supply for larger injectors
- Injector Return Line Kit (LLY/LBZ/LMM) - refresh leaking/aged lines
- Bosch 0986435521 Stock-Flow LBZ Injector - OE-style alternative
- Industrial Injection 0986435521SE-IIS (Stock Flow) - drop-in stock option
Cross-Reference / Alternatives
- Industrial Injection 0986435521SE-R1 - ~23 LPM (≈20% over)
- Industrial Injection 0986435521SE-R6 - ~38 LPM (≈75% over)
- S&S Diesel LBZ-45SAC-R-SET - 45% Over (Reman Set)
Helpful Notes
- Larger-than-stock injectors generally require custom tuning to manage pulse width, smoke, and driveability.
- A quality lift pump/filtration is strongly recommended to protect the CP3 and maintain rail pressure.
- Verify emissions compliance for your intended use and locale.
FAQ
Is this a direct-fit injector for my LBZ/LLY?Yes. It fits 2006 LLY and 2006-2007 LBZ applications with the correct body/connector style.
How much larger is “R4 compared to stock?R4 flows about 29 LPM, roughly 50% over stock-ideal when paired with proper air and tuning.
Do I need to upgrade my lift pump?While not strictly required, a quality lift pump helps maintain rail pressure and extend CP3 life when running larger injectors.
Is there a core charge?Yes. A refundable core charge typically applies. See checkout details for current terms.
| Specifications for INDUSTRIAL INJECTION 0986435521SE-R4 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0986435521SE-R4 |
| GTIN | 00840256902877 |
| UPC | 840256902877 |
| Engine Compatibility | 2006 LLY 6.6L Duramax (early 2006) & 2006–2007 LBZ 6.6L Duramax |
| Configuration | Reman Performance Injector, R4 (≈50% over), ~29 LPM |
| Country of Origin | Not specified |
| Core Charge | $100 (refundable per supplier policy) |
| Shipping Weight | 2 lb (single injector) |
| Package Dimensions | 11" × 5" × 3" |
| Shipping Method | Ground / Small Parcel |
| Prop 65 Warning | This product can expose you to chemicals including lead and chromium, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more. |
