Bosch 0PB-905-377-C Knock Sensor

The Bosch 0PB-905-377-C is a precision-engineered knock sensor designed to detect engine detonation and transmit critical signals to the engine control unit (ECU). This genuine Bosch sensor monitors high-frequency engine vibrations characteristic of knocking, allowing the ECU to adjust ignition timing and prevent engine damage.

Key Features:

• Linear signal output over a wide frequency range for accurate detection
• Cable length: 550mm for flexible installation
• Resistance: 0.86 kohm for precise signal transmission
• Direct replacement for OEM part numbers including 0-261-231-173 (Bosch), 93177171, 24420696, and 55187820
• Manufactured in Germany to original equipment specifications

This sensor is commonly used across multiple European vehicle platforms including Porsche, Volkswagen, Audi, Alfa Romeo, Fiat, Opel, Jeep, Chrysler, and other makes. The knock sensor plays a vital role in modern engine management systems by preventing pre-ignition and optimizing engine performance while protecting internal components from detonation damage.