Product Description
Step up fueling on your mid-2004 to 2005 6.6L Duramax LLY with Industrial Injection's R2 (30% over) reman injector, flow-balanced to ~25 LPM for clean, reliable power when paired with proper air and supply upgrades. Each injector is precision-calibrated, includes new sealing hardware, and carries a 1-year warranty.
Fitment
- 2004.5-2005 Chevrolet/GMC 2500HD & 3500HD - Duramax LLY
- Direct replacement for LLY applications only (mid-2004 through 2005 model year)
What's Included
- (1) Remanufactured Industrial Injection R2 • 30% over injector (single)
- New copper crush washer & O-rings
Key Features
- ~25 LPM calibrated flow (about 30% over stock)
- Extrude-honed and set-balanced for consistency
- Built from genuine OEM components
- 1-year / unlimited-mileage warranty
Recommended Parts (CPP Internal Links)
- Injector Installation Kit - 2004.5-2010 Duramax
- Injector Return Line Kit - LLY/LBZ/LMM
- Exergy 12mm Stroker CP3 - 2004.5-2005 LLY
- MAHLE HS54580A Head Gasket Set - 2004.5-2007 LLY/LBZ
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives (LLY)
- IIS (Stock) - 0986435504SE-IIS
- R1 - 23 LPM (30%-under vs R2) - 0986435504SE-R1
- R3 - 27 LPM - 0986435504SE-R3
- R4 - 29 LPM (≈50% over) - 0986435504SE-R4
- R5 - 33 LPM - 0986435504SE-R5
- R6 - 38 LPM - 0986435504SE-R6
Helpful Notes
- Sold individually; order 8 for a complete set.
- Core charge applies; return your rebuildable core to receive credit.
- R2 injectors can run on a stock turbo, but an upgraded turbo and CP3 improve EGT control and overall efficiency on higher power builds.
FAQ
How much do these flow compared to stock?R2 injectors are calibrated to about 25 LPM, roughly 30% over stock, with balanced sets for smooth operation.
Are they new or reman?Remanufactured from OEM components, extrude-honed, and precision calibrated. Each unit includes new sealing hardware.
What else should I replace during install?Install with a fresh injector installation kit and return line kit, and verify fuel supply (lift pump/filters) and CP3 health for best results.
Warranty & core policy?1-year/unlimited-mileage warranty from Industrial Injection; refundable core credit with timely return of an acceptable core.
| Specifications for INDUSTRIAL INJECTION 0986435504SE-R3 | |
|---|---|
| Brand | Industrial Injection |
| Part Number | 0986435504SE-R3 |
| GTIN | 840256902020 |
| UPC | 840256902020 |
| Engine Compatibility | 2004.5–2005 GM 6.6L Duramax LLY (Silverado/Sierra 2500/3500) |
| Configuration | Remanufactured Injector — Race 3 (40% Over), 27 LPM (R3); 29 LPM available as R4 variant |
| Country of Origin | USA |
| Core Charge | $100 (fully refundable per supplier policy upon eligible core return) |
| Shipping Weight | 2 lb (single injector) |
| Package Dimensions | 10" × 4" × 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. |
