Replaces

Nissan Infiniti Mercury Engine Knock Sensor & Harness Kit - 1AEEK00665

Frequently bought together

Description
Warranty & Shipping
Product Reviews
Q&A
Vehicle Fit

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.

Specifications:

  • 100% New not remanufactured
  • Mounts to engine block
  • Built to strict quality control standards
  • Some models may use more then one
  • Mounting type: Screw in
  • Number of Terminals: (2)
  • Includes jumper extension harness

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 www.P65Warnings.ca.gov.

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.

4.71/ 5.0
17 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
15
0
1
1
0
Worked Great, Shipped Quickly
It arrived on time and worked great. My old knock sensor was giving an error, but since the 2000 Nissan Pathfinder has its knock sensor directly in the center of the engine, it was easier to relocate the sensor as well. I spliced the new wire harness into the old one and secured the sensor to a new, more easily accessible area. Its doing great!
August 15, 2017
Part was made wrong.
Great price for the part. Saved us over 100$. Only issue was the harness, the part was on backwards. So it wouldnt line up with the original part for me car. The sensor its self fit like a glove.
October 1, 2017
Hey world you cant beat the price and promise to deliver parts in a timely fashion, Im calling on 1a when ever I need parts e.t.c.
October 25, 2017
Knock sensor
I haven’t had a chance to install it yet but I’m happy with what I got for the money. It looks like it’s going to do the trick. I would recommend it to everyone who wants to fix thier problem knock sensor
October 29, 2017
Item is like its description and it work perfectly
November 11, 2017
knock sensor relocate
This kit is perfect for relocating the knock sensor on the Nissan V6 I used the new harness and sensor to place the sensor on the top of the manifold for easy access. It looks like a factory installation with the harness and sensor properly shielded.
February 9, 2018
Great quality at the best price all-around.
I tried to buy this part at the local auto parts shops but the prices ranged from 150 without the cable plus an additional 65 for the cable. The lowest I found was $90 for the sensor and $45 for the cable. I am so happy to have bought the knock sensor kit at such a low price, once I got the part in the mail I had my local mechanic install it and it works perfectly. I highly recommend this store, because of the reasonable prices and quick mail delivery, the best thing is that the parts are high quality. From now on whenever I need a part for any of my cars this is the store I will be checking first.
February 14, 2018
Knock sensor and harness Nissan altima 2001
Knock sensor took the engine light off. I tried earlier with auto zone version but it didnt work. Harness has reversed plugg shape. Couldnt use it as a replacement. I guess I could cut off the old one and pair it with the new one. Needs little work but Im very happy with the quality.
April 13, 2018
Good knock sensor
good Knock sensor better price an shipping with in a week that was in beatable definitely removed the chech engine light an had a better idle anyway I like the part an give it a thumbs up thanks for reading
June 3, 2018
Easy & smart knock sensor idea
I am a heavy duty mechanic, hardly work on smalll vehicles because they are so compact and complicated like this knock sensor that you have to destroy top of the motor to replace it but thanks to this relocation harness and new knock sensor idea it can happen in 30 minutes, Thanks1aauto.com
June 18, 2018
Good quality parts!
Great replacement parts for my Nissan truck. And fast delivery!! I would recommend to anyone this online parts store...Write
October 28, 2018
Best website for auto parts
Was able to install without any problems...reset my check engine code and problem is fixed....
January 13, 2019
Parts galore.
The part worked great Ill always order from here fast response and a really great price
February 13, 2019
Very happy
I will recomend very happy with this product and very happy with this store thank you
February 19, 2019
Knock sensor harness quality
My order came on time it was the perfect match quality is great price was perfect for my budget much cheaper than I had seen other places online and in discount auto parts stores. I will if needed be shopping with 1 A Auto again..
March 28, 2019
Wrong Connector
It is the wrong connector for a J30 Infiniti so I had to rewire it using the old connector. Many other people all over the internet have noted this same problem. After rewiring it worked fine
July 4, 2019
First time-great experience
I have learnt about 1AAuto by watching one of yours very good how-to videos. Your web site is as good! Found a part I needed in no time, your price beats competitors, delivery time as promised and got the credit back when had to return the part – customer service is very friendly and COMPETENT! Overall – 10 points out of 10 and will be back! Keep up great job!
August 15, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Will this work on 2000 3.3 engine villager?
DONALD M July 30, 2017
This is not for your Villager. At this time we carry the knock sensor without the harness at the link https://www.1aauto.com/engine-knock-sensor/i/1aeks00008?f=526188&y=2000
Alex P July 31, 2017
If you put all your cars info into the site and it says thats the part, then it will work.
M P August 1, 2017
I have 2000 xterra se 3.3 will this fit?
Juan D March 27, 2019
This part will not fit, it is not listed for your engine size.
Andra M March 27, 2019
What is the piece that connects to the transmission sensor for a 1990 300zx?
Rico M July 17, 2019
Thank you for your inquiry! The transmission sensor will plug into a harness on the vehicle, but unfortunately we do not have the exact part number or name for it.
Tim K July 31, 2019
Year Make Model Description
1991-1996Infiniti G20 Infiniti G20 Engine Knock Sensor & Harness Kit
1999-2002Infiniti G20 Infiniti G20 Engine Knock Sensor & Harness Kit
1996-1999Infiniti I30 Infiniti I30 V6 3.0L Engine Knock Sensor & Harness Kit
1993-1997Infiniti J30 Infiniti J30 V6 3.0L Engine Knock Sensor & Harness Kit
1990-1999Infiniti Q45 Infiniti Q45 Engine Knock Sensor & Harness Kit
1997-1999Infiniti QX4 Infiniti QX4 V6 3.3L Engine Knock Sensor & Harness Kit
2000Infiniti QX4 Infiniti QX4 V6 3.3L (Built Before 1/00 Production Date) Engine Knock Sensor & Harness Kit
1993-1998Mercury Villager Mercury Villager V6 3.0L Engine Knock Sensor & Harness Kit
1995-1998Nissan 200SX Nissan 200SX L4 2.0L Engine Knock Sensor & Harness Kit
1997-1998Nissan 240SX Nissan 240SX L4 2.4L Engine Knock Sensor & Harness Kit
1990-1996Nissan 300ZX Nissan 300ZX V6 3.0L Engine Knock Sensor & Harness Kit
1990-1996Nissan 300ZX Nissan 300ZX V6 3.0L Turbo Engine Knock Sensor & Harness Kit
1993-2000Nissan Altima Nissan Altima L4 2.4L Engine Knock Sensor & Harness Kit
2001Nissan Altima Nissan Altima L4 2.4L Engine Knock Sensor & Harness Kit
1990-1994Nissan D21 Hardbody Pickup Nissan D21 Hardbody Pickup V6 3.0L Engine Knock Sensor & Harness Kit
1998-2000Nissan Frontier Nissan Frontier L4 2.4L Engine Knock Sensor & Harness Kit
1995-1999Nissan Maxima Nissan Maxima V6 3.0L Engine Knock Sensor & Harness Kit
1991-1993Nissan NX Nissan NX L4 2.0L Engine Knock Sensor & Harness Kit
1990-1995Nissan Pathfinder Nissan Pathfinder V6 3.0L Engine Knock Sensor & Harness Kit
1996-1999Nissan Pathfinder Nissan Pathfinder V6 3.3L Engine Knock Sensor & Harness Kit
2000Nissan Pathfinder Nissan Pathfinder V6 3.3L (Built Before 1/00 Production Date) Engine Knock Sensor & Harness Kit
1995Nissan Pickup Nissan Pickup V6 3.0L Engine Knock Sensor & Harness Kit
1993-1998Nissan Quest Nissan Quest V6 3.0L Engine Knock Sensor & Harness Kit
1991-1994Nissan Sentra Nissan Sentra L4 2.0L Engine Knock Sensor & Harness Kit
1998-2001Nissan Sentra Nissan Sentra L4 2.0L Engine Knock Sensor & Harness Kit
2000Nissan Xterra Nissan Xterra L4 2.4L (Built Before 6/00 Production Date) Engine Knock Sensor & Harness Kit
Part 1AEEK00665
In Stock


Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost


Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.