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

1990-1999 Infiniti Q45 Knock Sensor

Filter Results
  • Notify When Available
    Kit image

    Replaces Nissan Infiniti Mercury Engine Knock Sensor & Harness Kit TRQ ESA71374

    25 reviews
    Brand: TRQ - ESA71374

    • Kit Includes: (1) Engine Knock Sensor
    • Kit Includes: (1) Engine Knock Sensor Harness
    $39.95
    Save 11%
    List $44.95 Save $5.00
  • Notify When Available
    90-02 Infiniti; 93-98 Mercury, 87-01 Nissan Multifit Engine Knock Sensor Harness

    Replaces Nissan Infiniti Mercury Engine Knock Sensor Harness TRQ ESA94915

    1 reviews
    Brand: TRQ - ESA94915
    $20.95
    Save 32%
    List $30.95 Save $10.00
  • Notify When Available
    90-02 Infiniti; 93-98 Mercury, 87-01 Nissan Multifit Engine Knock Sensor

    Replaces Nissan Infiniti Mercury Engine Knock Sensor TRQ ESA94883

    2 reviews
    Brand: TRQ - ESA94883
    $23.95
    Save 33%
    List $35.95 Save $12.00
  • Notify When Available
    Engine Knock Sensor

    Replaces Nissan Infiniti Engine Knock Sensor Hitachi Automotive KNS0001

    Brand: Hitachi Automotive - KNS0001

    $60.14
    Save 40%
    List $99.95 Save $39.81
  • Notify When Available
    Engine Knock Sensor Set

    Replaces 1990-01 Infiniti Q45 2 Piece Engine Knock Sensor Set Hitachi Automotive HIERK00002

    Brand: Hitachi Automotive - HIERK00002

    • Quantity: 2 Piece
    • Kit Includes: (2) Engine Knock Sensors
    $93.69
    Save 49%
    List $184.95 Save $91.26
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.