"lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

KS49 Standard OE Replacement Knock Sensor

Tap image and pinch to zoom.
$97.31Save: $73.82(76%)
Manufacturer #KS49
Vehicle Info Required to Guarantee FitAdd Vehicle


Quantity Sold:
Sold individually
3-year or 36,000-mile Standard limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Standard OE Replacement

Vehicle Fitment Information

Vehicle Name
Fitment Information
1996 Buick Century
6 Cyl 3.1L
1996 Buick Century
6 Cyl 3.1L
1996 Buick Century
6 Cyl 3.1L
1996 Buick Regal
6 Cyl 3.1L
1996 Buick Skylark
Olympic Gold Edition
6 Cyl 3.1L
Page 1 of 15 | Showing 1 - 5 of 74 results

Product Information


Restore your ride to full function with the OEM-grade quality assurance and standard-setting performance offered by Standard’s OE replacement knock sensors. Since 1919, Standard Motor Products has engineered a full line of engine management products, including ignition parts, sensors and on-board computers.

  • Designed to OE-level standards
  • Sturdily constructed in TS 16949 certified facilities
  • Broad range of import and domestic models covered
  • Put through systematic inspection to guarantee enduring performance and quality
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

Is the knock sensor for a 2000 Chevy Impala and 2005 Monte Carlo the same? And if I have the Impala and it’s ECM with the Monte Carlo’s engine, would I need the knock sensor for the Impala or Monte Carlo?SwagMasterFeb 06, 2023
Best Answer:If the vehicles are the 2005 Chevrolet Monte Carlo LS with a 3.4-liter engine and a 2000 Chevrolet Impala Base with a 3.4-liter engine, then yes. You can use the same knock sensor. You can use this link to go back to the item page and continue the order: <a href="https://www.carparts.com/knock-sensor/standard/siks49?can=CPAP3648_CSQA_20230206" target="_blank">https://www.carparts.com/knock-sensor/standard/siks49?can=CPAP3648_CSQA_20230206</a> I hope this helps. Enjoy shopping.
Aldrin P.STAFFFeb 06, 2023
How many sensors are in a 98 Buick century? I’ve looked for a bank 2 sensor online and on the car for hours haven’t seen one in the rear at all not even a wire to it.KonnorNov 10, 2022
Best Answer:Hi Konnor, I'm glad to assist you. Your car has one knock sensor only. It is located on the lower left side engine above the starter. You can check YouTube DIY videos for this particular part of your vehicle application. Grab our low-price offer and click the link below to buy it today. Happy shopping! <a href="https://www.carparts.com/knock-sensor/standard/siks49?can=CPJE1043_CSQA_20221110" target="_blank">https://www.carparts.com/knock-sensor/standard/siks49?can=CPJE1043_CSQA_20221110</a>
Jeonino E.STAFFNov 10, 2022