INDUSTRIAL INJECTION 0986435521SE-R3 GM REMANUFACTURED INJECTOR — 2006–2007 6.6L DURAMAX LLY/LBZ — 27 LPM (RACE 3 / 40% OVER)

Step up fueling on your 2006–2007 Duramax with INDUSTRIAL INJECTION’s R3 (40% over) reman injector flowing ~27 LPM. Built from genuine Bosch cores and balanced as performance units, this injector supports tuned daily drivers to competition builds when paired with proper air and supply.

Fitment

• 2006–2007 GM 6.6L Duramax LLY (late 2006)
• 2006–2007 GM 6.6L Duramax LBZ

What’s Included

• (1) Industrial Injection R3 40% over reman injector — PN 0986435521SE-R3
• New seals/copper washer (as supplied by manufacturer)
• Core return required (per supplier policy)

Key Features

• ~27 LPM flow (approx. 40% over)
• Extrude-honed & flow-matched performance calibration
• Direct-fit LLY/LBZ body & connector

Recommended Parts (CPP internal links only)

• AirDog FP-100 4G Lift Pump — 01–10 LB7/LLY/LBZ
• Brand-New CP3 Pump — 06–10 LBZ/LMM or Industrial Injection 12mm CP3 — 06–07 LBZ/LMM
• Injector Return Line Kit — 04–10 LLY/LBZ/LMM
• MAHLE Valve Cover/Rocker Gasket Set — 04.5–07 LLY/LBZ
• Browse All Duramax Injectors & Install Parts

Cross-Reference / Alternatives (CPP internal links only)

• Industrial Injection 0986435521SE-IIS — Stock Flow
• Bosch 0986435521 — OE Reman Replacement
• S&S Diesel LBZ 60% Over (Set) • 100% Over (Set) • 300% Over (Set)

Helpful Notes

• Custom tuning and adequate low-side supply are strongly recommended to control smoke and maintain rail pressure.
• Replace compromised return lines and upper cover gaskets during injector service to prevent leaks.

FAQ

R3 units are ~40% over stock and flow about 27 LPM per injector (set-matched). Air and supply upgrades are recommended.

Yes. These use the correct LBZ-style body/electrical and fit late-2006 LLY and all 2006–2007 LBZ applications.

For 40% over injectors, a quality lift pump and a healthy or higher-output CP3 help maintain commanded rail pressure under load.