Description
Warranty & Shipping
How-To & Tools
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.

This knock sensor features the following specifications:

  • 100% New not remanufactured
  • Replaces dealer part numbers: 10456018, 1997699, 8104562880, 10456288, 1997699
  • Mounts to engine block
  • Built to strict quality control standards
  • Mounting type: Screw in
  • Number of Terminals: (1)

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. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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.

  1. step : Removing the Oxygen Sensor (0:41)
    • Loosen the oxygen sensor with a 7/8 inch wrench
    • Attach a second wrench to the first for leverage if necessary
    • Pull out the oxygen sensor
  2. step : Removing the Knock Sensor (2:02)
    • Pull the wire and insulator off of the knock sensor
    • Pull the wire out of its insulator
    • Pull off the knock sensor
  3. step : Connecting the New Wire (2:23)
    • Strip the insulation off the new wire about 1/4 of an inch
    • Insert the wire end into the splice
    • Crimp the wire at the splice with pliers
  4. step : Installing the New Wire (2:46)
    • Insert the other end of the wire into the splice
    • Crimp the wire at the splice with pliers
    • Put on the wire insulator
    • Push in the knock sensor
  5. step : Reinstalling the Oxygen Sensor (3:57)
    • Put the oxygen sensor into place
    • Tighten the oxygen sensor with a 7/8 inch wrench

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Electrical Tape

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters
  • Needle nose pliers

  • Wrenches - SAE

  • 3/4 Inch Wrench
  • 7/8 Inch Wrench

3.00/ 5.0
4 reviews
5 Stars
4 Stars
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1 Star
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1
Bad or wrong sensor for my engine.
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 wont be using 1A auto parts again nor will I recommend them!
February 19, 2017
still have obd1 code 43
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.
May 1, 2017
Knock censor
This will work perfect. Well packaged came in one piece.
August 14, 2017
Wrong parts great service
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.
August 21, 2018
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
No questions have been asked about this item.
Year Make Model Description
1992-1993Buick Roadmaster Buick Roadmaster Engine Knock Sensor V8 5.7L
1990-1992Cadillac Brougham Cadillac Brougham Engine Knock Sensor V8 5.7L
1999-2000Cadillac Escalade Cadillac Escalade Engine Knock Sensor V8 5.7L
1986-1995Chevy Astro Chevy Astro Engine Knock Sensor V6 4.3L
1987-1994Chevy Blazer Full Size Chevy Blazer Full Size Engine Knock Sensor V8 5.7L
1988-1993Chevy Blazer S10 Chevy Blazer S10 Engine Knock Sensor V6 4.3L
1985-1986Chevy C10 Truck Chevy C10 Truck Engine Knock Sensor V6 4.3L
1988-1999Chevy C1500 Truck Chevy C1500 Truck Engine Knock Sensor V8 5.7L
1988-1993Chevy C1500 Truck Chevy C1500 Truck Engine Knock Sensor V6 4.3L
1991-1993Chevy C1500 Truck Chevy C1500 Truck SS Engine Knock Sensor V8 7.4L
1985-1986Chevy C20 Truck Chevy C20 Truck Engine Knock Sensor V6 4.3L
1988-2000Chevy C2500 Truck Chevy C2500 Truck Engine Knock Sensor V8 5.7L
1988-1992Chevy C2500 Truck Chevy C2500 Truck Engine Knock Sensor V6 4.3L
1991-1995Chevy C2500 Truck Chevy C2500 Truck Engine Knock Sensor V8 7.4L
1988-1990Chevy C3500 Truck Chevy C3500 Truck Engine Knock Sensor V8 5.7L
1988-1990Chevy C3500 Truck Chevy C3500 Truck Engine Knock Sensor V8 7.4L
1991-1995Chevy C3500 Truck Chevy C3500 Truck Engine Knock Sensor V8 7.4L Manual Transmission
1991-1995Chevy C3500 Truck Chevy C3500 Truck Engine Knock Sensor V8 5.7L Manual Transmission
1996-2000Chevy C3500 Truck Chevy C3500 Truck Engine Knock Sensor V8 5.7L
1987-1989Chevy Camaro Chevy Camaro Engine Knock Sensor V8 5.7L
1985-1993Chevy Caprice Chevy Caprice Engine Knock Sensor V6 4.3L
1989-1993Chevy Caprice Chevy Caprice Engine Knock Sensor V8 5.7L
1987-1989Chevy Corvette Chevy Corvette Engine Knock Sensor V8 5.7L
1985-1987Chevy El Camino Chevy El Camino Engine Knock Sensor V6 4.3L
1996-2002Chevy Express 1500 Van Chevy Express 1500 Van Engine Knock Sensor V8 5.7L
1996-2002Chevy Express 2500 Van Chevy Express 2500 Van Engine Knock Sensor V8 5.7L
1996-2002Chevy Express 3500 Van Chevy Express 3500 Van Engine Knock Sensor V8 5.7L
1985Chevy Impala Chevy Impala Engine Knock Sensor V6 4.3L
1985-1986Chevy K10 Truck Chevy K10 Truck Engine Knock Sensor V6 4.3L
1988-1999Chevy K1500 Truck Chevy K1500 Truck Engine Knock Sensor V8 5.7L
1988-1993Chevy K1500 Truck Chevy K1500 Truck Engine Knock Sensor V6 4.3L
1985Chevy K20 Truck Chevy K20 Truck Engine Knock Sensor V6 4.3L
1988-1993Chevy K2500 Truck Chevy K2500 Truck Engine Knock Sensor V6 4.3L
1988-2000Chevy K2500 Truck Chevy K2500 Truck Engine Knock Sensor V8 5.7L
1991-1995Chevy K2500 Truck Chevy K2500 Truck Engine Knock Sensor V8 7.4L
1988-1990Chevy K3500 Truck Chevy K3500 Truck Engine Knock Sensor V8 7.4L
1988-1990Chevy K3500 Truck Chevy K3500 Truck Engine Knock Sensor V8 5.7L
1991-1995Chevy K3500 Truck Chevy K3500 Truck Engine Knock Sensor V8 5.7L Manual Transmission
1991-1995Chevy K3500 Truck Chevy K3500 Truck Engine Knock Sensor V8 7.4L Manual Transmission
1996-2000Chevy K3500 Truck Chevy K3500 Truck Engine Knock Sensor V8 5.7L
1985-1988Chevy Monte Carlo Chevy Monte Carlo Engine Knock Sensor V6 4.3L
1987-1989Chevy P20 Chevy P20 Engine Knock Sensor V8 5.7L
1988-1989Chevy P20 Chevy P20 Engine Knock Sensor V8 7.4L
1987-1999Chevy P30 Chevy P30 Engine Knock Sensor V8 5.7L
1988-1992Chevy P30 Chevy P30 Engine Knock Sensor V8 7.4L
1990-1994Chevy P30 Chevy P30 Engine Knock Sensor V6 4.3L
1987Chevy R1500 Truck Chevy R1500 Truck Engine Knock Sensor V6 4.3L
1987Chevy R1500 Truck Chevy R1500 Truck Engine Knock Sensor V8 5.7L
1987Chevy R2500 Truck Chevy R2500 Truck Engine Knock Sensor V6 4.3L
1987-1988Chevy R2500 Truck Chevy R2500 Truck Engine Knock Sensor V8 5.7L
1987-1989Chevy R2500 Truck Chevy R2500 Truck Engine Knock Sensor V8 7.4L
1987-1991Chevy R3500 Truck Chevy R3500 Truck Engine Knock Sensor V8 7.4L
1987-1991Chevy R3500 Truck Chevy R3500 Truck Engine Knock Sensor V8 5.7L
1988-1993Chevy S10 Pickup Chevy S10 Pickup Engine Knock Sensor V6 4.3L
1992-1996Chevy Suburban C1500 Chevy Suburban C1500 Engine Knock Sensor V8 5.7L
1992-1996Chevy Suburban C2500 Chevy Suburban C2500 Engine Knock Sensor V8 5.7L
1992-1996Chevy Suburban C2500 Chevy Suburban C2500 Engine Knock Sensor V8 7.4L
1992-1996Chevy Suburban K1500 Chevy Suburban K1500 Engine Knock Sensor V8 5.7L
1992-1996Chevy Suburban K2500 Chevy Suburban K2500 Engine Knock Sensor V8 5.7L
1992-1996Chevy Suburban K2500 Chevy Suburban K2500 Engine Knock Sensor V8 7.4L
1989-1991Chevy Suburban R1500 Chevy Suburban R1500 Engine Knock Sensor V8 5.7L
1989-1991Chevy Suburban R2500 Chevy Suburban R2500 Engine Knock Sensor V8 5.7L
1989-1991Chevy Suburban R2500 Chevy Suburban R2500 Engine Knock Sensor V8 7.4L
1989-1991Chevy Suburban V1500 Chevy Suburban V1500 Engine Knock Sensor V8 5.7L
1989-1991Chevy Suburban V2500 Chevy Suburban V2500 Engine Knock Sensor V8 5.7L
1989-1991Chevy Suburban V2500 Chevy Suburban V2500 Engine Knock Sensor V8 7.4L
1995-2000Chevy Tahoe Chevy Tahoe Engine Knock Sensor V8 5.7L
1987Chevy V1500 Truck Chevy V1500 Truck Engine Knock Sensor V8 5.7L
1987Chevy V1500 Truck Chevy V1500 Truck Engine Knock Sensor V6 4.3L
1987-1991Chevy V3500 Truck Chevy V3500 Truck Engine Knock Sensor V8 7.4L
1987-1991Chevy V3500 Truck Chevy V3500 Truck Engine Knock Sensor V8 5.7L
1985-1993GMC C1500 Truck GMC C1500 Truck Engine Knock Sensor V6 4.3L
1985-1993GMC C1500 Truck GMC C1500 Truck Engine Knock Sensor V6 4.3L
1988-1999GMC C1500 Truck GMC C1500 Truck Engine Knock Sensor V8 5.7L
1988-2000GMC C2500 Truck GMC C2500 Truck Engine Knock Sensor V8 5.7L
1992-1995GMC C2500 Truck GMC C2500 Truck Engine Knock Sensor V8 7.4L
1988-1990GMC C3500 Truck GMC C3500 Truck Engine Knock Sensor V8 5.7L
1988-1990GMC C3500 Truck GMC C3500 Truck Engine Knock Sensor V8 7.4L
1991-1995GMC C3500 Truck GMC C3500 Truck Engine Knock Sensor V8 5.7L Manual Transmission
1991-1995GMC C3500 Truck GMC C3500 Truck Engine Knock Sensor V8 7.4L Manual Transmission
1996-2000GMC C3500 Truck GMC C3500 Truck Engine Knock Sensor V8 5.7L
1985-1987GMC Caballero GMC Caballero Engine Knock Sensor V6 4.3L
1985-1992GMC G1500 GMC G1500 Engine Knock Sensor V8 5.7L
1985-1992GMC G1500 GMC G1500 Engine Knock Sensor V6 4.3L
1985-1992GMC G2500 GMC G2500 Engine Knock Sensor V8 5.7L
1985-1991GMC G2500 GMC G2500 Engine Knock Sensor V6 4.3L
1985-1992GMC G3500 GMC G3500 Engine Knock Sensor V8 5.7L
1985-1991GMC G3500 GMC G3500 Engine Knock Sensor V6 4.3L
1987-1991GMC Jimmy Full Size GMC Jimmy Full Size Engine Knock Sensor V8 5.7L
1988-1992GMC Jimmy S-15 GMC Jimmy S-15 Engine Knock Sensor V6 4.3L
1985-1993GMC K1500 Truck GMC K1500 Truck Engine Knock Sensor V6 4.3L
1988-1999GMC K1500 Truck GMC K1500 Truck Engine Knock Sensor V8 5.7L
1985-1993GMC K2500 Truck GMC K2500 Truck Engine Knock Sensor V6 4.3L
1988-2000GMC K2500 Truck GMC K2500 Truck Engine Knock Sensor V8 5.7L
1992-1995GMC K2500 Truck GMC K2500 Truck Engine Knock Sensor V8 7.4L
1988-1990GMC K3500 Truck GMC K3500 Truck Engine Knock Sensor V8 7.4L
1988-1990GMC K3500 Truck GMC K3500 Truck Engine Knock Sensor V8 5.7L
1991-1995GMC K3500 Truck GMC K3500 Truck Engine Knock Sensor V8 5.7L Manual Transmission
1991-1995GMC K3500 Truck GMC K3500 Truck Engine Knock Sensor V8 7.4L Manual Transmission
1996-2000GMC K3500 Truck GMC K3500 Truck Engine Knock Sensor V8 5.7L
1987-1989GMC P2500 GMC P2500 Engine Knock Sensor V8 5.7L
1988-1989GMC P2500 GMC P2500 Engine Knock Sensor V8 7.4L
1987-1999GMC P3500 GMC P3500 Engine Knock Sensor V8 5.7L
1988-1992GMC P3500 GMC P3500 Engine Knock Sensor V8 7.4L
1990-1994GMC P3500 GMC P3500 Engine Knock Sensor V6 4.3L
1987GMC R1500 Truck GMC R1500 Truck Engine Knock Sensor V8 5.7L
1987GMC R1500 Truck GMC R1500 Truck Engine Knock Sensor V6 4.3L
1987-1989GMC R2500 Truck GMC R2500 Truck Engine Knock Sensor V6 4.3L
1987-1989GMC R2500 Truck GMC R2500 Truck Engine Knock Sensor V8 5.7L
1987-1989GMC R2500 Truck GMC R2500 Truck Engine Knock Sensor V8 7.4L
1987GMC R2500 Truck GMC R2500 Truck Engine Knock Sensor V6 4.3L
1987-1991GMC R3500 Truck GMC R3500 Truck Engine Knock Sensor V8 5.7L
1987-1991GMC R3500 Truck GMC R3500 Truck Engine Knock Sensor V8 7.4L
1988-1990GMC S-15 Pickup GMC S-15 Pickup Engine Knock Sensor V6 4.3L
1991-1993GMC S-15 Sonoma GMC S-15 Sonoma Engine Knock Sensor V6 4.3L
1996-2002GMC Savana 1500 Van GMC Savana 1500 Van Engine Knock Sensor V8 5.7L
1996-2002GMC Savana 2500 Van GMC Savana 2500 Van Engine Knock Sensor V8 5.7L
1996-2002GMC Savana 3500 Van GMC Savana 3500 Van Engine Knock Sensor V8 5.7L
1992-1999GMC Suburban C1500 GMC Suburban C1500 Engine Knock Sensor V8 5.7L
1992-1999GMC Suburban C2500 GMC Suburban C2500 Engine Knock Sensor V8 5.7L
1992-1993GMC Suburban C2500 GMC Suburban C2500 Engine Knock Sensor V8 7.4L
1992-1999GMC Suburban K1500 GMC Suburban K1500 Engine Knock Sensor V8 5.7L
1992-1999GMC Suburban K2500 GMC Suburban K2500 Engine Knock Sensor V8 5.7L
1992-1993GMC Suburban K2500 GMC Suburban K2500 Engine Knock Sensor V8 7.4L
1987-1991GMC Suburban R2500 GMC Suburban R2500 Engine Knock Sensor V8 7.4L
1987-1991GMC Suburban V2500 GMC Suburban V2500 Engine Knock Sensor V8 7.4L
1992-1993GMC Typhoon GMC Typhoon Engine Knock Sensor V6 4.3L Turbo
1987GMC V1500 Truck GMC V1500 Truck Engine Knock Sensor V6 4.3L
1987GMC V1500 Truck GMC V1500 Truck Engine Knock Sensor V8 5.7L
1987GMC V1500 Truck GMC V1500 Truck Engine Knock Sensor V6 4.3L
1987GMC V2500 Truck GMC V2500 Truck Engine Knock Sensor V6 4.3L
1987GMC V2500 Truck GMC V2500 Truck Engine Knock Sensor V8 5.7L
1987-1991GMC V3500 Truck GMC V3500 Truck Engine Knock Sensor V8 5.7L
1987-1991GMC V3500 Truck GMC V3500 Truck Engine Knock Sensor V8 7.4L
1992-2000GMC Yukon GMC Yukon Engine Knock Sensor V8 5.7L
1992Oldsmobile Custom Cruiser Olds Custom Cruiser Engine Knock Sensor V8 5.7L
1987-1989Pontiac Firebird Pontiac Firebird Engine Knock Sensor V8 5.7L
1986-1987Pontiac Grand Prix Pontiac Grand Prix Engine Knock Sensor V6 4.3L
1985-1986Pontiac Parisienne Pontiac Parisienne Engine Knock Sensor V6 4.3L
Part #: 1AEKS00012


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(04:12 min)