HELLA6PG 013 114-391Art. 6PG 013 114-391£22.99
OEM & aftermarket knock sensor from top brands — compare prices, check fitment, order with free delivery
Shop 971 knock sensor from 24 trusted brands including EPS, FAE, BOSCH. Compare prices, check vehicle compatibility, and get free delivery on orders over £99.
The knock sensor detects abnormal combustion (detonation or pinging) in the engine and signals the ECU to retard ignition timing to prevent damage. A faulty sensor causes the ECU to either retard timing excessively (reducing power and economy) or fail to protect the engine from harmful knock. Replacement ensures optimal performance and engine protection.
The knock sensor is a piezoelectric device mounted on the engine block. It listens for the characteristic vibration frequency of detonation.
Knock sensors are torque-sensitive. Incorrect tightening alters the sensor's frequency response and can cause false readings.
Commonly searched OE numbers fitting Knock Sensor from the TecDoc catalogue.
Common original equipment numbers linked to stocked alternatives.
