Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

1999 Mercury Mountaineer Oxygen Sensors

What year is your
Free Same Day Shipping

1999 Mercury Mountaineer Oxygen Sensors

Filter Results
  • Notify When Available

    VIDEO

    Kit image

    Replaces 2 Piece O2 Oxygen Sensor Set TRQ OSA61578

    14 reviews
    Brand: TRQ - OSA61578

    • Quantity: 2 Piece
    • Kit Includes: (2) Downstream O2 Oxygen Sensors
    $70.95
    Save 8%
    List $76.95 Save $6.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor

    Replaces O2 Oxygen Sensor TRQ OSA61313

    17 reviews
    Brand: TRQ - OSA61313

    $46.95
    Save 6%
    List $49.95 Save $3.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    Oxygen Sensor

    Replaces 1999 Mercury Mountaineer V8 5.0L Upstream Left O2 Oxygen Sensor TRQ OSA61767

    1 reviews
    Brand: TRQ - OSA61767

    $46.95
    Save 10%
    List $51.95 Save $5.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    99-07 Ford Multifit Oxygen Sensor PAIR

    Replaces 1999 Mercury Mountaineer V6 4.0L Upstream 2 Piece O2 Oxygen Sensor Set TRQ OSA61635

    21 reviews
    Brand: TRQ - OSA61635

    • Quantity: 2 Piece
    • Kit Includes: (2) Upstream O2 Oxygen Sensors
    $62.95
    Save 14%
    List $72.95 Save $10.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor Set

    Replaces 1999 Mercury Mountaineer V6 4.0L Upstream & Downstream 4 Piece O2 Oxygen Sensor Set TRQ OSA61636

    16 reviews
    Brand: TRQ - OSA61636

    • Quantity: 4 Piece
    • Kit Includes: (2) Downstream O2 Oxygen Sensors
    • Kit Includes: (2) Upstream O2 Oxygen Sensors
    $118.95
    Save 16%
    List $141.95 Save $23.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    Kit image

    Replaces O2 Oxygen Sensor TRQ OSA61633

    1 reviews
    Brand: TRQ - OSA61633

    • Includes: Installation Tool
    • Kit Includes: (1) Oxygen Sensor Install Socket
    • Kit Includes: (1) O2 Oxygen Sensor
    $61.95
    Save 19%
    List $76.95 Save $15.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor

    Replaces O2 Oxygen Sensor TRQ OSA61305

    8 reviews
    Brand: TRQ - OSA61305

    $41.95
    Save 16%
    List $49.95 Save $8.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    99-07 Ford Multifit Oxygen Sensor w/ tool

    Replaces O2 Oxygen Sensor TRQ OSA61634

    1 reviews
    Brand: TRQ - OSA61634

    • Includes: Installation Tool
    • Kit Includes: (1) Oxygen Sensor Install Socket
    • Kit Includes: (1) O2 Oxygen Sensor
    $55.95
    Save 14%
    List $64.95 Save $9.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor

    Replaces O2 Oxygen Sensor Walker Products 250-24001

    1 reviews
    Brand: Walker Products - 250-24001

    $57.95
    Save 28%
    List $80.95 Save $23.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor - Delphi

    Replaces 1999 Mercury Mountaineer Rear O2 Oxygen Sensor Delphi ES20316

    Brand: Delphi - ES20316

    $39.95
    Save 51%
    List $80.95 Save $41.00

    Guaranteed to Fit 1999 Mercury Mountaineer

    Guaranteed to Fit 1999 Mercury Mountaineer

1

...

1 2

...

2
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
1999 Mercury Mountaineer Oxygen Sensors filter
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.