Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain
What year is your
Free Same Day Shipping

2003-2004 Chevrolet Trailblazer Knock Sensor

Filter Results
  • Notify When Available

    VIDEO

    98-06 GM Hummer Isuzu PU SUV Multifit 4.2L 4.8L 5.3L 5.7L 6.0L Knock Sensor PAIR

    Replaces 2 Piece Engine Knock Sensor Set TRQ ESA12268

    13 reviews
    Brand: TRQ - ESA12268

    • Quantity: 2 Piece
    • Kit Includes: (2) Engine Knock Sensors
    $36.95
    Save 23%
    List $47.95 Save $11.00
  • Notify When Available

    VIDEO

    Engine Knock Sensor

    Replaces Engine Knock Sensor TRQ ESA53623

    5 reviews
    Brand: TRQ - ESA53623

    $25.95
    Save 28%
    List $35.95 Save $10.00
  • Notify When Available

    VIDEO

    Engine Knock Sensor

    Replaces Engine Knock Sensor TRQ ESA53630

    Brand: TRQ - ESA53630
    $29.95
    Save 17%
    List $35.95 Save $6.00
  • Notify When Available
    Engine Knock Sensor

    Replaces Engine Knock Sensor TRQ ESA90017

    Brand: TRQ - ESA90017
    $24.95
  • Notify When Available
    Engine Knock Sensor - Delphi

    Replaces Engine Knock Sensor Delphi AS10260

    Brand: Delphi - AS10260

    $26.95
    Save 53%
    List $56.95 Save $30.00
Close



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.

Go To Top
Specify your vehicle

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

Year
Make
Model
Options
Drivetrain

If your vehicle isn't listed, close the window to return to search.