Bosch 078-906-433 F Crankshaft Position Sensor

The Bosch 078-906-433 F is a precision-engineered crankshaft position sensor designed to provide accurate detection of engine speed and crankshaft position. This critical engine management component monitors the rotation speed and position of the crankshaft, transmitting real-time data to the engine control unit (ECU) to optimize ignition timing and fuel injection parameters.

Key Features:

• OEM-quality construction built to Bosch Original Equipment specifications
• Inductive sensor technology for reliable, non-contact operation
• Precision signal output ensures proper engine timing and fuel delivery
• Direct replacement design for quick, hassle-free installation
• Also known as engine speed sensor, RPM reference sensor, or impulse sender

Function and Performance:

The crankshaft position sensor plays a vital role in modern engine management systems by continuously monitoring crankshaft speed and position. This data allows the ECU to precisely control fuel injection timing and ignition timing for optimal engine performance, fuel efficiency, and emissions control. A failing crankshaft position sensor can cause various driveability issues including hard starting, rough idle, engine misfires, stalling, increased fuel consumption, or a check engine light.

Cross-Reference Information:

Bosch manufacturer part number: 0 261 210 217 (0261210217). This sensor is commonly referenced by OEM part number 078906433F and various aftermarket interchange numbers including PC573, 5S1940, SU6538, 1008497, and 76008497.

Engineered with Bosch's renowned quality and precision, this crankshaft position sensor delivers the reliable performance needed to restore proper engine operation and maintain peak efficiency.