Performance Revamp Pack: Cummins QSB6.7 Injector Set of 6 (2011-2020, OEM 5579334)
What is it?
This set includes six OEM 5579334 fuel injectors, built for Cummins QSB6.7 engines from 2011 through 2020. Each injector is precision-engineered to deliver the right amount of fuel under high pressure—helping ensure balanced combustion and smooth engine performance across all cylinders.
Why choose OEM 5579334 (Set of 6)?
Using a full set of genuine OEM injectors ensures uniform performance and minimizes the risk of uneven wear or mismatched fuel delivery. OEM 5579334 in full set avoids issues like idle roughness, misfires, or power imbalance that often crop up when mixing old and new injectors. For consistency and reliability, this is the go-to solution.
Key Benefits
✅ Uniform fuel delivery across all six cylinders
✅ Restores smooth idling, clean combustion, and steady power output
✅ Helps reduce fuel consumption and engine stress
✅ Robust design resists heat, vibration, and extended operation
✅ Simplifies maintenance with direct-fit replacement for all injectors
Applications
Perfect for trucks, construction equipment, generators, or any machinery powered by Cummins QSB6.7 engines manufactured between 2011 and 2020 that need multiple injectors replaced. This set is ideal when full cylinder performance and balanced operation are needed.
Installation Notes
Shut off and cool down the engine before replacing injectors. Clean the injector bores and mounting regions to avoid introducing dirt. Replace any worn seals or washers. Install each injector and torque to Cummins specifications. After installation, test run the engine to verify smooth and even performance, and inspect for leaks.
Final Thoughts
When restoring or enhancing your Cummins QSB6.7, this OEM 5579334 set of six injectors delivers consistent power, reliability, and efficiency. With original engineering and matching components, your engine gets the balanced performance it deserves. Tamerx has this set in stock and ready to ship.