Bosch Motorsport Knock Sensor KS4-R


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SKU: 0261231173 Category:
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Bosch Motorsport Knock Sensor is used for detecting structural born vibrations in spark ignition engines due to uncontrolled combustion. This Knock sensor is suitable for operation in extreme conditions.

Due to the inertia of the seismic mass, Knock sensor moves in correlation to the engine block vibration; this motion results in a compressive force which is converted into a voltage signal via a piezoceramic sensor element. As a result, upper and lower voltage thresholds can be defined directly correlating to an acceleration magnitude.

The main benefits of Bosch Motorsport Knock sensor are its robust mechanical design, compact housing and precise determination of structure-related noise. Connection to this sensor can be tailored to customer requirements through specified wire lengths and various connector options.


  • Frequency: 3 to 25 kHz
  • Weight: 82 g
  • Height sensor head: 18 mm

Bosch Motorsport part number: 0 261 231 173

Weight 0.0600 kg
Dimensions 11.000 × 11.000 × 4.000 cm
Sensor Type



Bosch Motorsport


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