97-04 Jeep Grand Cherokee & 97-02 Wrangler 4.0L Front Sensor
Direct-fit oxygen sensor for 4.0L engines—keeps fuel mixture dialed in and emission monitors happy. This is the real deal for maintaining proper combustion efficiency and preventing check engine lights caused by sensor degradation. Designed for straightforward bolt-in replacement at the factory location.
Do I need any special tools or adapters to install this?
You'll need a socket wrench and an oxygen sensor socket—the sensor threads directly into the factory location without adapters or fabrication. Keep the engine cool before working on the exhaust area.
Will this clear a check engine light?
If your light was caused by sensor failure or out-of-range readings, replacing the sensor and clearing the code should keep it off. If the light returns, there's likely a separate issue in the fuel or ignition system worth diagnosing.
What's the return window if this doesn't work out?
Check the return policy on your order confirmation. Sensors are typically returnable within 30 days if unused and uninstalled—but once it's threaded into a hot exhaust, it's yours, so test-fit or confirm your engine code first.
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