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, 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 can cause fracture in the pistons.

This knock sensor features the following specifications:

  • 100% New not remanufactured
  • Replaces dealer part numbers: 30530-P5M-013, 30530P5M013
  • Mounts to engine block
  • Built to strict quality control standards
  • Some models may use more then one
  • Mounting type: Screw in
  • Number of Terminals: (1)

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.

5.0 / 5.0
7 Reviews
5 Stars
4 Stars
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1 Star
Honda Knock Sensor
Part was easy to order and was shipped quickly and very well-packaged. My only suggestion (for non motorheads) would be to list possible tools needed for installation.
March 28, 2018
4 months ago
I would recommend this it fit perfectly and works great for this 99 honda accord i put the engine in why pay 120 to 200 for it when you can get it for under 20.00 bucks love it i will be shopping here more often thanks for the service
February 20, 2018
5 months ago
Worked great.
Much better part than some cheapies I tried first that failed after a week or two. Sorry 1AAUTO, I’ll never do that again.
October 20, 2017
9 months ago
Great price and good quality! Got rid of the code right away!
July 12, 2017
1 year ago
knock sensor
Delivered quickly, was able to use a deep socket to install, clicked in wiring and moved on. As long as it does what it is supposed to, I'm happy.
July 9, 2017
1 year ago
Works perfectly
Very good fit and works perfectly, my 1998 honda runs like new now
February 20, 2017
1 year ago
Worked great. Fit great. Check engine light stayed off.
Knock sensor fit 199 Accord 4cyl great and saved us a bunch of money too.
January 22, 2017
1 year ago
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Vehicle Fit

  • 1998-1999 Acura CL Engine Knock Sensor L4 2.3L
  • 1998-2002 Honda Accord Engine Knock Sensor L4 2.3L
  • 2002-2003 Honda Civic Engine Knock Sensor L4 1.7L
  • 1998-1999 Honda Odyssey Engine Knock Sensor L4 2.3L
  • 1997-1999 Honda Prelude Engine Knock Sensor L4 2.2L
  • 2000-2001 Honda Prelude (Engine ID BB6) Engine Knock Sensor L4 2.2L
  • 1998-1999 Isuzu Oasis Engine Knock Sensor L4 2.3L

This part replaces:

  • OE # 30530P5M013
  • Standard Motor Products KS64T
Part #: 1AEKS00004