Logo Image
Father’s Day Sale – Up to 40% Off! Shop Now >

O2 Oxygen Sensor; Upstream (87-90 4.2L Jeep Wrangler YJ)

Item J236067
Our Price

$59.99

Military, Medical & First Responders $3.00 Available in XT Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
    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

    Shop Owners Save More! Sign up for our dealer program

      Product Information

      Features, Description, Reviews, Q&A

      Features

        _x000D_
      • Wrench Size: 22 Mm, 0.87 In
      • _x000D_
      • Universal Or Specific Fit: Specific
      • _x000D_
      • Thread Diameter: 18 Mm, 0.71 In
      • _x000D_
      • Wire Quantity: 1
      • _x000D_
      • Connector Gender: Male
      • _x000D_
      • Terminal Type: Blade
      • _x000D_
      • Overall Length: 16.93 In, 430 Mm
      • _x000D_
      • Thread Size: M18x1.5-6e
      • _x000D_
      • Mounting Type: Threaded
      • _x000D_
      • Connector Shape: Circle
      • _x000D_
      • Terminal Gender: Male
      • _x000D_
      • Sensor Type: Narrow-Band
      • _x000D_
      • Wiring Harness Length: 298 Mm, 11.73 In
      • _x000D_
      • Sensor Design: Thimble
      • _x000D_
      • Terminal Quantity: 1
      • _x000D_
      • Grade Type: Standard Replacement
      • _x000D_
      • Item Condition: New
      • _x000D_
      • Fits 87-90 4.2L Jeep Wrangler YJ
      • _x000D_

      Description

      Precision Engine Management. The O2 Oxygen Sensor; Upstream monitors the oxygen level in the exhaust gases before the catalytic converter, providing critical data to the engine control unit (ECU) for optimal air/fuel mixture adjustments. This enhances engine efficiency, reduces emissions, and ensures proper combustion across varying driving conditions.

      _x000D__x000D_

      Construction and Appearance. Manufactured with a double-layered 310S stainless steel housing for enhanced corrosion resistance, the sensor features an isotatic-pressed and plasma-sprayed sensing element for longevity and reliable responsiveness. The thimble design and durable wiring with blade terminal ensure consistent connection integrity and ease of integration.

      _x000D__x000D_

      Installation. Designed for straightforward replacement with no modifications or drilling required, installation is accessible with common hand tools. It fits specific vehicles with threaded mounting for direct factory replacement.

      _x000D__x000D_

      Warranty. This sensor is backed by a limited lifetime warranty guaranteeing replacement in the event of manufacturing defects during intended use.

      _x000D__x000D_

      Application. This O2 sensor fits the 1987 to 1990 Jeep Wrangler YJ equipped with the 4.2L engine, ensuring accurate emissions control and engine performance compliance for this specific model period.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      5.0

      Customer Reviews (2)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Wrangler

      • YJ Wrangler 2 Door - 87, 88, 89, 90