Knock Sensors

Select your vehicle to see Knock Sensors that fit

Knock Sensors for Detonation Monitoring

A knock sensor listens for detonation, the uncontrolled combustion that can damage pistons, rings and bearings. It turns vibration from the engine block into a signal the engine management system can read. When knock is detected, the ECU can pull ignition timing to protect the engine. People replace a failed sensor to clear a fault and restore normal timing. Others fit one when setting up a standalone ECU or tuning for more power, where knock control is an important safety net.

We currently have 2 knock sensors in stock, one from Bosch and one from Haltech. Choose between the Bosch Knock Sensor and the Haltech Bosch Knock Sensor, which includes a plug and pins for wiring into your harness.

  • Confirm the mounting bolt size matches the threaded boss on your engine block.
  • Check that the connector suits your factory harness, or plan to wire in a new plug.
  • If you run an aftermarket ECU, make sure it supports knock sensor input.
  • Torque the sensor to the engine maker's spec, since incorrect clamping can affect the signal.

To narrow things down, pick your vehicle to see what fits.

Knock Sensors for Detonation Monitoring

A knock sensor listens for detonation, the uncontrolled combustion that can damage pistons, rings and bearings. It turns vibration from the engine block into a signal the engine management system can read. When knock is detected, the ECU can pull ignition timing to protect the engine. People replace a failed sensor to clear a fault and restore normal timing. Others fit one when setting up a standalone ECU or tuning for more power, where knock control is an important safety net.

We currently have 2 knock sensors in stock, one from Bosch and one from Haltech. Choose between the Bosch Knock Sensor and the Haltech Bosch Knock Sensor, which includes a plug and pins for wiring into your harness.

  • Confirm the mounting bolt size matches the threaded boss on your engine block.
  • Check that the connector suits your factory harness, or plan to wire in a new plug.
  • If you run an aftermarket ECU, make sure it supports knock sensor input.
  • Torque the sensor to the engine maker's spec, since incorrect clamping can affect the signal.

To narrow things down, pick your vehicle to see what fits.