Reclaim Precision Fuel Delivery with Cummins QSB 6.7L High Pressure Fuel Rail 2018–2024 OEM 5450722
What is it?
The High Pressure Fuel Rail (OEM 5450722) is a vital component in the common-rail injection system for the Cummins QSB 6.7L engine (model years 2018–2024). It acts as a central reservoir that stores fuel at extreme pressure and distributes it evenly to each injector, enabling efficient and accurate fuel delivery.
Why choose this fuel rail?
A properly functioning high-pressure fuel rail ensures that your engine receives consistent fuel supply, supports clean combustion, and helps meet emissions and performance expectations. Replacing a worn or damaged rail with an OEM-specified part restores reliability and precision for your fuel system.
Key Benefits
✅ Maintains consistent high pressure to every injector for smooth combustion
✅ Helps improve engine responsiveness and fuel efficiency
✅ Engineered to withstand extreme pressures and demanding operating conditions
✅ Direct-fit design—no modifications required
✅ Built to OEM standards for long-term durability
Applications
Ideal for trucks and equipment powered by the Cummins QSB 6.7L engine (2018–2024) where high-pressure fuel delivery, performance consistency, and system reliability matter most.
Installation Notes
Before installation, relieve fuel pressure and inspect for signs of corrosion or damage along the rail and connection points. Replace all seals and clamps to ensure leak-free operation. After installation, check fuel system pressure and monitor engine behavior to verify proper performance.
Final Thoughts
If your QSB 6.7L engine is showing signs of irregular power delivery, pressure faults, or inefficient fuel usage, the OEM 5450722 High Pressure Fuel Rail is the replacement you need. With direct-fit compatibility and precision engineering, it helps restore optimal fuel system performance and keeps your engine running strong.