Bosch engine crankshaft position sensor

The Bosch engine crankshaft position sensor (also called a crank sensor or CKP sensor) monitors the rotational speed and position of the crankshaft. It sends this signal to the engine control unit (ECU). The ECU uses it to time ignition and fuel injection accurately. A working crankshaft position sensor is essential for smooth starting, steady idle, and reliable engine performance.

Key Features:

• Provides accurate crankshaft speed and position signals to the engine management system
• Supports precise ignition timing and fuel injection control
• Built to OE-level standards from Bosch, a long-time supplier of automotive electronics and sensors
• Housing and connector designed to hold up to engine heat, vibration, and oil exposure
• Direct-fit replacement design for straightforward installation

Symptoms of a failing sensor can include hard starting, no-start, engine stalling, rough running, misfires, poor acceleration, and a lit check engine light. Replacing a worn or faulty sensor with a Bosch unit helps restore reliable engine operation and driveability.

Select the correct variant for your application using the individual part numbers listed on this page.