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:

  • Location:
    • Acura RL Models
      • RH (Passenger Side) Engine (Rear Bank)
    • All other Models
      • Underside of Vehicle, Rear of Engine
  • 100% New not remanufactured
  • Replaces dealer part numbers: 30530-PR7-A01, 30530PR7A01
  • 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 substantial 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.

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installation instructions ?
Nathan on Jan 28, 2016
BEST ANSWER: Hello, Sorry we do not have installation details on this part here. Maybe a Haynes repair manual would be of assistance?

Vehicle Fit

  • 1991-1995 Acura Legend Engine Knock Sensor V6 3.2L
  • 1991-2005 Acura NSX Engine Knock Sensor V6 3.0L
  • 1997-2005 Acura NSX Engine Knock Sensor V6 3.2L
  • 1996-2004 Acura RL Rear Bank Engine Knock Sensor V6 3.5L
  • 1996-1998 Acura TL Engine Knock Sensor V6 3.2L

This part replaces:

  • OE # 30530PR7A01
  • Standard Motor Products KS92
Part #: 1AEKS00006