Product Information
This Genuine BMW high pressure fuel pump (HPFP) is the latest revised version designed for direct injection engines such as the N54 and early N55. It includes the required O-ring (p/n 13517571363) for proper installation and sealing.
The HPFP is a critical component in gasoline direct injection systems, boosting fuel pressure to extremely high levels to allow precise fuel delivery directly into the combustion chamber. This results in improved atomization, better efficiency, and increased power output.
Earlier versions of this pump were known for reliability issues, and BMW has updated the design multiple times. This version reflects the most up-to-date improvements for durability and performance.
Function:
Supplies high-pressure fuel to the injectors, ensuring accurate fuel delivery and proper engine operation under all load conditions.
Common failure symptoms:
Engine performance issues: Hard starting, hesitation, misfires, or loss of power under load.
Fuel system faults: Check engine light with lean or rich mixture codes, or reduced fuel economy.
Noise or leaks: Unusual ticking or whining sounds from the pump area, or visible fuel leakage.
This is a brand new, unused Genuine BMW component manufactured to factory specifications for proper fitment, reliability, and long-term performance.