J.C. Whitney JRN96090011 Downstream Heated Oxygen Sensor 4-Wire OEM Replacement

The J.C. Whitney JRN96090011 is a direct-fit, heated downstream oxygen sensor designed as an OEM-quality replacement. Featuring a 4-wire heated design, this O2 sensor is engineered to restore proper exhaust monitoring and emissions system performance without the need for wire splicing or modifications.

The downstream oxygen sensor (also called Sensor 2 or the post-catalytic converter sensor) is located in the exhaust system after the catalytic converter. Its primary function is to monitor catalytic converter efficiency and report data to the engine control unit (ECU), helping ensure your vehicle meets emissions standards. A failed downstream O2 sensor commonly triggers a check engine light and can cause your vehicle to fail emissions testing.

Key Features:

• Sensor Type: Heated, 4-Wire
• Position: Downstream (post-catalytic converter)
• Mounting Style: Threaded-in, M18 x 1.5 thread size
• Connector: Direct-fit plug-and-play — no wire splicing required
• Warranty: 1-year, unlimited-mileage J.C. Whitney warranty
• Restores accurate catalytic converter efficiency monitoring
• Helps resolve downstream O2 sensor fault codes and check engine light

J.C. Whitney replacement sensors are built to industry-standard quality specifications, providing a reliable and affordable alternative to dealer-priced OEM parts. Backed by a 1-year unlimited-mileage warranty, this sensor installs with standard hand tools and an O2 sensor socket.