J.C. Whitney JRM96090029 Heated Downstream Oxygen Sensor 4-Wire OEM Replacement

The J.C. Whitney JRM96090029 is a heated, 4-wire downstream oxygen sensor designed as a direct OEM replacement. This sensor monitors exhaust gases after the catalytic converter, providing critical feedback to the engine control module (ECM) to help maintain optimal fuel trim and emissions performance.

Key Features:

• Heated Design: Integrated heater element allows the sensor to reach operating temperature quickly, improving accuracy and reducing cold-start emissions
• 4-Wire Configuration: Two heater wires plus two sensor signal wires for precise oxygen measurement and reliable heater circuit operation
• Downstream Position: Installed after the catalytic converter to monitor converter efficiency and assist with OBD-II emissions diagnostics
• OEM Replacement: Engineered to match original equipment specifications for a direct fit installation
• Plug-and-Play: Designed for straightforward installation with factory-style connector compatibility

Replacing a faulty downstream oxygen sensor can resolve check engine lights related to catalyst efficiency codes (such as P0420/P0430) and restore proper emissions monitoring. This J.C. Whitney replacement sensor is a cost-effective solution to maintain your vehicle's exhaust and emissions system.