Bosch 13-53-8-643-665 High Pressure Fuel Rail Pressure Sensor

The Bosch 13-53-8-643-665 is a high-pressure fuel rail pressure sensor designed for direct-injection fuel systems. This sensor is also known by Bosch part number 0-261-545-121 and serves as an OEM replacement component for modern BMW and MINI vehicles.

Key Features:

• Located in high pressure fuel rail for accurate real-time pressure monitoring
• Manufactured by Bosch, the world's largest automotive component supplier
• OEM quality construction ensures precise fuel system management
• Helps prevent misfires, stumbling, hard starting, and rough running caused by faulty sensors
• Direct replacement for BMW part number 13537620946

This fuel pressure sensor plays a critical role in monitoring fuel rail pressure and communicating data to the engine control unit (ECU). The ECU uses this information to precisely control fuel injection timing and duration, optimizing engine performance, fuel economy, and emissions. A failing fuel pressure sensor can trigger check engine lights and cause drivability issues, making timely replacement essential for maintaining proper engine operation.