Nissan Mercury Engine Knock Sensor - 1AEKS00008

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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: 220607B000, XF5Z12A699AA
  • 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 testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

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I returned an item , and was very impressed with the no hassle transaction I received from your agent . I will use 1A auto for future purchases . Thank You ....Paul
July 10, 2017
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Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Can a bad Knock Sensor cause your check engine light to come on?
Larry G December 28, 2018
This sensor could cause the light to come on, but there could be multiple reasons why youre having this particular problem. We suggest taking your vehicle to a nearby reputable shop to identify the cause. Once you know the cause, well be happy to see if we carry the parts and how-to videos needed for your repair.
Adam G December 28, 2018
Year Make Model Description
1999-2002Mercury Villager Mercury Villager V6 3.3L Engine Knock Sensor
1999-2004Nissan Frontier Nissan Frontier V6 3.3L Engine Knock Sensor
2001-2004Nissan Frontier Nissan Frontier V6 3.3L Supercharged Engine Knock Sensor
1999-2000Nissan Pathfinder Nissan Pathfinder V6 3.3L Engine Knock Sensor
1999-2002Nissan Quest Nissan Quest V6 3.3L Engine Knock Sensor
2000-2004Nissan Xterra Nissan Xterra V6 3.3L Engine Knock Sensor
2002-2004Nissan Xterra Nissan Xterra V6 3.3L Supercharged Engine Knock Sensor
Part 1AEKS00008
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