Cummins QSB6.7 Fuel Injector 2011-2020: OEM 5579334 ( Set of 6 )
Balanced Power Upgrade: Cummins QSB6.7 Injector Set of 6 (2011–2020, OEM 5579334)
What is it?
This is a full set of six OEM 5579334 fuel injectors designed for Cummins QSB6.7 engines from 2011 to 2020. Each injector delivers precise quantities of fuel under high pressure to its cylinder, ensuring your engine runs smoothly and efficiently on all cylinders.
Why choose OEM 5579334?
Built to authentic Cummins engineering standards, OEM 5579334 ensures consistency, coordination, and performance across the injectors. Installing all six replacements at once helps prevent uneven wear, misfiring, or power imbalance that can occur when mixing old and new injectors. It’s a smart investment for reliability and long-term engine health.
Key Benefits
✅ Uniform fuel delivery for all six cylinders
✅ Enhances engine idle smoothness, acceleration, and overall balance
✅ Reduces risk of misfires, rough operating conditions, and excessive fuel consumption
✅ Designed to endure high pressure, heat, and tough duty cycles
✅ OEM direct-fit replacement for seamless installation
Applications
Ideal for trucks, agricultural equipment, generators, and other machinery powered by Cummins QSB6.7 engines (2011–2020). Whenever dependable and consistent injector performance matters—especially under heavy load or long hours—this set keeps your engine operating at full strength.
Installation Notes
Before beginning, ensure the engine is off and cool. Clean the injector ports and seating areas to avoid introducing contaminants. Replace all necessary seals or washers, install the injectors according to Cummins torque specs, then prime the fuel system. After installation, run the engine to confirm smooth operation across all cylinders and check for leaks.
Final Thoughts
For six-cylinder strength and balanced performance, the OEM 5579334 injector set delivers the precision and dependability your QSB6.7 engine needs. With genuine OEM craftsmanship, matched components, and full-set replacement, it helps protect power, efficiency, and uptime. Tamerx has this set in stock and ready to ship.