1AEKS00012-Engine Knock Sensor



1990 GMC K2500 Truck V6 4.3L Engine Knock Sensor

Guaranteed to fit 1990 GMC K2500 Truck

85-02 Chevy GMC Truck SUV Multifit 4.3L 5.7L 6.2L 7.4L Knock Sensor
$ 24.95
24% OFF
24% OFF
DIY Solutions
In Stock
Part 1AEKS00012

This part doesn’t fit a . Select from parts that fit.

Show parts that fit

Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

If your vehicle isn't listed, search Knock Sensor

Orders must be placed by 2pm ET
Part 1AEKS00012
In Stock

Enter your zip code

Frequently bought together

Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

If your vehicle isn't listed, search Knock Sensor

DIY Solutions
In Stock
Part 1AEKS00012
Product Reviews
Loading reviews
4.11/ 5.0 9
Bad or wrong sensor for my engine.
February 19, 2017
I received either a bad or wrong sensor for my 454. I went to the local NAPA and got one that works. A total waste of $25.00.. lesson learned.... I won't be using 1A auto parts again nor will I recommend them!
still have obd1 code 43
May 1, 2017
while removing old knock sensor, the head stripped right off, tryed vice grips to remove the stripped bolt and theres no sign of it coming out. with the new sensor from 1aauto i had to locate a new hole in the block to secure it in. after doing so, the obd1 code 43 was still showing. faulty sensor? bad location on block? not sure, what i do know is i have both obd1 code 42 and 43, which points to the EST. time to search the web for information on that.
Knock censor
August 14, 2017
This will work perfect. Well packaged came in one piece.
Wrong parts great service
August 21, 2018
I purchased this knock sensor on the phone. Made a comment about two being listed and they assured me this was the correct one. I installed the sensor and the truck still threw codes. I did some research and found that this was the wrong part for my application. The black sensor is for a manual transmission and the white sensor is for a 4l80e auto. I bought the right sensor local and it solved the problem as expected. The service was good and they were helpful in getting the cost of the part refunded. They were all friendly and great to deal with if the knowledge was there it would have been a great transaction. I will try them again at some point but will be sure to do my research before ordering.
knock sensor
September 5, 2019
sensor worked as it should. saved me half what local parts stores price.
Get your money worth
April 2, 2020
Went right on so far so good. Probably better than the stock OEM
Knock sensor
April 23, 2020
Exactly what I needed exactly what I ordered showed up in a timely fashion very happy
So far impressed
December 24, 2020
exactly what I needed and a great price and I received it very quickly I was super satisfied with the business it was very professional and done accordingly
Big Cat
August 21, 2021
Customer Q&A
Is this part an OEM ?
March 26, 2019
Christopher N
1A Auto's house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicle's exact OEM specifications.
March 26, 2019
Emma F
I keep getting a code number 3and4 misfire 5.7 vortex engine 1996 I can clear code and will come right back.? Isd
December 23, 2021
Gary H
There could be multiple reasons why you're having this particular problem. We suggest taking your vehicle to a nearby reputable shop to identify the cause. Once you know the cause, we'll be happy to see if we carry the parts and how-to videos needed for your repair.
December 24, 2021
Ricale A
Customer service


Monday - Friday 8:00am - 9:30pm ET
Saturday - Sunday 8:00am - 4:30pm ET

GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company. See all trademarks.

Engine Knock Sensor DIY Solutions-1AEKS00012 does not fit your:

Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 1990 GMC K2500 Truck with these options.