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 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.

4.8 / 5.0
8 Reviews
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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 it's 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. It's doing great!
August 15, 2017
Purchased
8 months ago
Item is like it's description and it work perfectly
November 11, 2017
Purchased
5 months ago
Knock sensor and harness Nissan altima 2001
Knock sensor took the engine light off. I tried earlier with auto zone version but it didn't work. Harness has reversed plugg shape. Couldn't 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 I'm very happy with the quality.
April 13, 2018
Purchased
3 weeks ago
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
Purchased
2 months ago
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 $45 for the cable.
I am so happy to have bought the knock sensor kit at such a low price, once I got the part in the mail I had my local mechanic install it and it works perfectly.
I highly recommend this store, because of the reasonable prices and quick mail delivery, the best thing is that the parts are high quality.
From now on whenever I need a part for any of my cars this is the store I will be checking first.
February 14, 2018
Purchased
2 months ago
Hey world you can't beat the price and promise to deliver parts in a timely fashion, I'm calling on 1a when ever I need parts e.t.c.
October 25, 2017
Purchased
6 months ago
Knock sensor
I haven’t had a chance to install it yet but I’m happy with what I got for the money. It looks like it’s going to do the trick. I would recommend it to everyone who wants to fix thier problem knock sensor
October 29, 2017
Purchased
6 months ago
Part was made wrong.
Great price for the part. Saved us over 100$. Only issue was the harness, the part was on backwards. So it wouldn't line up with the original part for me car. The sensor its self fit like a glove.
October 1, 2017
Purchased
6 months ago
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Will this work on 2000 3.3 engine villager?
DONALD M on Jul 30, 2017
BEST ANSWER: 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

Vehicle Fit

  • 1991-1996 Infiniti G20 Engine Knock Sensor & Harness Kit
  • 1999-2002 Infiniti G20 Engine Knock Sensor & Harness Kit
  • 1996-1999 Infiniti I30 Engine Knock Sensor & Harness Kit V6 3.0L
  • 1993-1997 Infiniti J30 Engine Knock Sensor & Harness Kit V6 3.0L
  • 1990-1999 Infiniti Q45 Engine Knock Sensor & Harness Kit
  • 1997-1999 Infiniti QX4 Engine Knock Sensor & Harness Kit V6 3.3L
  • 2000 Infiniti QX4 Engine Knock Sensor & Harness Kit V6 3.3L (Built Before 1/00 Production Date)
  • 1993-1998 Mercury Villager Engine Knock Sensor & Harness Kit V6 3.0L
  • 1995-1998 Nissan 200SX Engine Knock Sensor & Harness Kit L4 2.0L
  • 1997-1998 Nissan 240SX Engine Knock Sensor & Harness Kit L4 2.4L
  • 1990-1996 Nissan 300ZX Engine Knock Sensor & Harness Kit V6 3.0L
  • 1990-1996 Nissan 300ZX Engine Knock Sensor & Harness Kit V6 3.0L Turbo
  • 1993-2000 Nissan Altima Engine Knock Sensor & Harness Kit L4 2.4L
  • 2001 Nissan Altima Engine Knock Sensor & Harness Kit L4 2.4L
  • 1990-1995 Nissan D21 Hardbody Pickup Engine Knock Sensor & Harness Kit V6 3.0L
  • 1998-2000 Nissan Frontier Engine Knock Sensor & Harness Kit L4 2.4L
  • 1995-1999 Nissan Maxima Engine Knock Sensor & Harness Kit V6 3.0L
  • 1991-1993 Nissan NX Engine Knock Sensor & Harness Kit L4 2.0L
  • 1990-1995 Nissan Pathfinder Engine Knock Sensor & Harness Kit V6 3.0L
  • 1996-1999 Nissan Pathfinder Engine Knock Sensor & Harness Kit V6 3.3L
  • 2000 Nissan Pathfinder Engine Knock Sensor & Harness Kit V6 3.3L (Built Before 1/00 Production Date)
  • 1993-1998 Nissan Quest Engine Knock Sensor & Harness Kit V6 3.0L
  • 1991-1994 Nissan Sentra Engine Knock Sensor & Harness Kit L4 2.0L
  • 1998-2001 Nissan Sentra Engine Knock Sensor & Harness Kit L4 2.0L
  • 2000 Nissan Xterra Engine Knock Sensor & Harness Kit L4 2.4L (Built Before 6/00 Production Date)

This part replaces:

  • Standard Motor Products KS79
  • OE # 2206030P00
Part #: 1AEEK00665

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