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Oxygen Sensor; Upstream; Front (01-03 4.0L Jeep Wrangler TJ)

Item J115261
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Market Price $151.99 You Save 9% ($13.54)
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$138.45 (each)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Oxygen (O2) Sensor
      • Provides Emissions Readings to Engine Management Computer
      • Allows Engine to Run Efficiently
      • Maintains Correct Emissions Levels
      • Premium Quality Plastic and Metal Construction
      • Bronze and Black Finishes
      • For 4.0L Engine
      • Installation Position: Front O2 Sensor Before Catalytic Convertor
      • Sold Individually
      • Easy Installation
      • Comes with Limited One Year or 12,000 Miles Warranty
      • Fits 2001 to 2003 4.0L Jeep Wrangler TJs


      Replacement for Malfunctioning Oxygen Sensor. The O2 sensor, also known as Lambda probe or sensor, is a critical component in modern automobiles. Your Jeep uses this sensors to check how well combustion is taking place inside the engine, maximizing performance while minimizing emissions and protecting the cats from the effects of poor fueling. This Oxygen Sensor is the perfect replacement if your 4.0L TJ Wrangler’s front pre-cat O2 sensor has stopped working properly.

      Premium Quality Materials. The Oxygen Sensor lives in a really tough place under your car on the exhaust system, where it deals with very high temperatures. Manufacturer manufactures the Oxygen Sensor from premium-grade metal and plastic to ensure it lasts many years.

      Direct Factory Replacement. This Oxygen Sensor is a direct replacement for the original stock component. It is designed simply to screw into the existing bung on your Jeep’s exhaust and connect to the vehicle wiring harness.

      Limited 12 Month Manufacturer Warranty. The Oxygen Sensor is covered by the Manufacturer limited warranty, which lasts for 12,000 miles or 12 months.

      Application. This Oxygen Sensor fits the front, pre-cat position on the exhaust of the 4.0L Jeep Wrangler TJ models from 2001–2003.

      Fitment: 2001 2002 2003 Details

      MPN# 56041943AA

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) O2 Sensor

      Customer Reviews (1)

        Questions & Answers

        10 More Questions

        Will It Fit My Wrangler

        • TJ Wrangler 2 Door - 01, 02, 03

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