Bosch 9P1-906-401-A Crankshaft Position Sensor

The Bosch 9P1-906-401-A is a precision-engineered crankshaft position sensor designed to monitor the rotational speed and exact position of the engine crankshaft. This critical engine management component transmits real-time crankshaft data to the Engine Control Unit (ECU), enabling optimal ignition timing and fuel injection control for improved engine performance and efficiency.

Key Features:

• Monitors crankshaft rotation speed (RPM) and precise angular position
• Provides essential timing data for ignition and fuel injection systems
• Manufactured by Bosch to OEM specifications for reliable performance
• Inductive sensor design for accurate signal generation
• Direct replacement for proper engine synchronization and starting

This sensor works by detecting teeth on the crankshaft reluctor ring as it rotates, generating voltage pulses that the ECU uses to calculate engine speed and crankshaft position. Without a functioning crankshaft position sensor, the engine will not start or may experience stalling, misfiring, and poor performance. The Bosch 9P1-906-401-A ensures precise engine timing control for optimal combustion efficiency and drivability.

Alternate Part Numbers: 9P1906401A, 9P1.906.401.A, 9P1 906 401 A