BMW Direct Injection High Pressure Fuel Pump - Genuine BMW 13518643464

Product Information

BMW High Pressure Fuel Pumps diagram for 750i xDrive, M550i xDrive, 750i, Alpina B7

A direct injection high pressure fuel pump (HPFP) is a critical component in modern gasoline direct injection (GDI) engines. Unlike traditional fuel pumps, it boosts fuel pressure to extremely high levels (often over 2,000 psi) so fuel can be directly injected into the combustion chamber. This enables better fuel atomization, improved efficiency, and higher power output. The HPFP is typically driven by the camshaft and works in tandem with a low-pressure fuel pump. Over time, wear, contamination, or internal failure can lead to drivability issues.

• Engine performance problems – hard starting, hesitation, misfires, or loss of power under load.
• Fuel-related issues – check engine light, lean/rich codes, or reduced fuel economy.
• Noises or leaks – ticking/whining sounds from the pump or visible fuel leakage at the pump area.

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Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.