Downstream Oxygen Sensor for Jeep Grand Cherokee 4.7L

Upgrade or replace your Jeep Grand Cherokee 4.7L downstream oxygen sensor with a reliable IWOKPHD unit designed to keep emissions in check and the engine running smoothly. This downstream (post-cat) O2 sensor provides precise readings after the catalytic converter, helping the engine control module fine-tune air-fuel mixture for cleaner exhaust, better fuel efficiency, and longer catalytic converter life. Built for 2001–2004 4.7L Jeeps, it covers multiple part-number options to ensure compatibility and a solid fit.

Key features include heating capability for faster warm-up and a piezoelectric sensing element for responsive, stable readings across a wide operating range. Originating from Mainland China, this sensor is crafted to endure typical road conditions while maintaining accurate performance. With a 2-year replacement warranty, you can have confidence in long-term reliability as part of your vehicle’s emissions system.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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Benefits & Tips

• Maintains proper catalyst efficiency by ensuring the ECU receives accurate downstream oxygen readings, helping to minimize unnecessary fuel trim changes.
• Supports stable idle and consistent engine performance after replacement, reducing potential check engine light triggers caused by a worn sensor.
• Ideal as part of routine emissions maintenance for Jeep Grand Cherokee 4.7L models from 2001–2004, ensuring ongoing compliance with emissions standards.

Product specifications

• Brand: IWOKPHD
• Part Numbers: 234-4746, 2344746, 234 4746, 5139020AA, 56041731AA, 56044583AA
• Application: For JEEP GRAND CHEROKEE 4.7L 2001-2004
• Sensor Type: Piezoelectric
• Heating Type: Yes
• Position: Downstream (Right/downstream oxygen sensor)
• Origin: Mainland China
• Warranty: 2 years (Replacement Warranty)
• Package Includes: 1 x Downstream Oxygen Sensor

Package includes:

• 1 x Downstream Oxygen Sensor for Jeep Grand Cherokee 4.7L

Warnings/Reminders

• Please check the picture and the part number carefully to make sure that you bought the right part for your car.
• If you cannot confirm which item fits your car, please send the Part Number or the original product photos to us to confirm before order.
• The only way to be 100% sure that the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.