Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

1991 Infiniti Q45 Emissions & Sensors

What year is your
Free Same Day Shipping

1991 Infiniti Q45 Emissions & Sensors

Filter Results
  • Notify When Available

    VIDEO

    84-03 Mercury, Nissan Multifit Upstream 3 Wire O2 Oxygen Sensor (14.7 Inch)

    Replaces 1991 Infiniti Q45 V8 4.5L Upstream Left O2 Oxygen Sensor TRQ OSA61228

    2 reviews
    Brand: TRQ - OSA61228

    $42.95
    Save 12%
    List $48.95 Save $6.00

    Guaranteed to Fit 1991 Infiniti Q45

    Guaranteed to Fit 1991 Infiniti Q45

  • Notify When Available

    VIDEO

    84-03 Mercury, Nissan Multifit Upstream 3 Wire O2 Oxygen Sensor (14.7 Inch) w/ T

    Replaces 1991 Infiniti Q45 V8 4.5L Upstream Left O2 Oxygen Sensor TRQ OSA61664

    1 reviews
    Brand: TRQ - OSA61664

    • Includes: Installation Tool
    • Kit Includes: (1) O2 Oxygen Sensor
    • Kit Includes: (1) Heavy Duty Oxygen Sensor Install Socket
    $61.95
    Save 13%
    List $70.95 Save $9.00

    Guaranteed to Fit 1991 Infiniti Q45

    Guaranteed to Fit 1991 Infiniti Q45

  • Notify When Available
    Mass Air Flow Sensor - Delphi

    Replaces 1991 Infiniti Q45 Mass Air Flow Sensor Delphi AF10565

    Brand: Delphi - AF10565

    Out of Stock

    $ 96.95

    Guaranteed to Fit 1991 Infiniti Q45

    Guaranteed to Fit 1991 Infiniti Q45

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.