This replacement Engine Knock (Detonation) Sensor is just what you need to get your vehicle in good running order again!

A knock sensor is like a small electronic microphone that is usually attached to the engine block and listens for a couple of things that a engine might do. One thing it listens for is pre-ignition or knocking inside the engine usually caused by a few issues including dirty gas, wrong engine timing low octane fuel, wrong air / fuel mixture, and also by the wrong spark plugs. It also listens for engine run on which happens when the vehicle is turned off, but tries to keep running until it stalls. Once a noise is detected, the knock sensor sends a signal to the cars computer which in turn will retard the timing at 2 degree intervals until it corrects the issue. If the knock sensor fails, it can seriously damage the engine, as continuous pre-ignition could cause melting or fractures in the pistons just to name a few.

This knock sensor features the following specifications:

  • 100% New not remanufactured
  • Replaces dealer part numbers: 22060AA061, 22060 AA061
  • Mounts to engine block
  • Built to strict quality control standards
  • Mounting type: Screw in
  • Number of Terminals: (2)

This Engine Knock Sensor makes a great replacement and has good cost savings over a dealer unit.

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

5.0 / 5.0
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knock sensor
Fit as described, shipped fast--$50 bucks cheaper at A1 Auto than at an auto parts store--great!
August 5, 2017
7 months ago
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Vehicle Fit

  • 1998 Subaru Forester Engine Knock Sensor H4 2.5L
  • 1996-1998 Subaru Impreza Engine Knock Sensor H4 2.2L
  • 1997 Subaru Impreza Engine Knock Sensor H4 1.8L
  • 1998 Subaru Impreza Engine Knock Sensor H4 2.5L
  • 1998 Subaru Impreza Outback Engine Knock Sensor H4 2.5L
  • 1997-1999 Subaru Legacy Engine Knock Sensor H4 2.5L
  • 1997-1999 Subaru Legacy Engine Knock Sensor H4 2.2L
  • 1997-1999 Subaru Legacy Outback Engine Knock Sensor H4 2.2L
  • 1997-1999 Subaru Legacy Outback Engine Knock Sensor H4 2.5L

This part replaces:

  • OE # 22060AA061
  • Standard Motor Products KS96T
Part #: 1AEKS00009

Ships Same Day for orders placed by 4 P.M. ET