Talk to a Wrangler Sales Tech
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Logo Image
$12k Summer Sweepstakes! Enter Daily>

Knock Sensor (07-11 3.8L Jeep Wrangler JK)

Item J136729
Knock Sensor (07-11 3.8L Jeep Wrangler JK)
Verify parts fit and get product recommendations.
Wrangler Sales Techs: Connect Now M-F 8:30A-11P, Sat-Sun 8:30A-9P
Our Price


FREE Shipping on orders over $119 Market Price $45.99 You Save 15% ($7.00) Up to 10% off for Military & First Responders! See Details

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Out of Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

      Product Information

      Features, Description, Q&A


      • Helps Monitor Engine Performance
      • Knock Sensor
      • Fits 2007-2011 Jeep Wrangler JK with 3.8L Engine
      • 12-Month Warranty
      • Plastic Body Design
      • Difficult Replacement Process


      Knock Sensor for Engine Monitoring. Replace a faulty knock sensor in your Jeep’s engine and keep track of the health of your engine more effectively. This replacement Jeep Wrangler knock sensor is designed to monitor for any knocking or unnatural vibration in the engine and output an error code when an abnormality is detected.

      OEM Plastic Build. This knock sensor utilizes a plastic OEM-style build with a single mounting hole and a factory-fit wiring clip. The sensor installs just outside your engine block and can be put on without making modifications.

      Sturdy Plastic Build. This sensor makes use of a plastic body with a metal mounting point. The sensor is sturdy and heat-resistant, and it’s crafted to handle years of use well. This little sensor installs inside your engine with a precise fit you can rely on.

      Difficult Installation. It’s challenging to install this sensor, and mechanics spend approximately 3-4 hours to put one of these sensors inside the engine. The sensor is difficult to reach without moving a significant portion of the engine’s components first.

      12-Month Protection. This part has a 12-month warranty to guard against failures. The warranty starts on the purchase date, and it protects the actual materials and build quality of the part.

      Application. This knock sensor fits 2007-2011 Jeep Wrangler JK models with a 3.8L engine. When installing this part on a matching vehicle, no adjustments are necessary to use the sensor.



      CA Residents: WARNING: Cancer and Reproductive Harm -


      Reviews of similar Engine Products (432)

      Reviews of similar Engine products have an average rating of 4.7 out of 5

        Questions & Answers

        10 More Questions

        Will It Fit My Wrangler

        • JK Rubicon 2 Door - 07, 08, 09, 10, 11
        • JK Rubicon 4 Door - 07, 08, 09, 10, 11
        • JK Wrangler 2 Door - 07, 08, 09, 10, 11
        • JK Wrangler 4 Door - 07, 08, 09, 10, 11