J.C. Whitney JV960902 Heated Downstream Oxygen Sensor 4-Wire OEM Replacement

The J.C. Whitney JV960902 is a direct-fit, heated downstream oxygen sensor designed as an OEM-quality replacement. Positioned after the catalytic converter, this sensor monitors exhaust gas composition to help the engine control module (ECM) verify catalytic converter efficiency and maintain optimal fuel delivery. A failed downstream O2 sensor can trigger a check engine light, reduce fuel economy, and cause emissions test failures — making timely replacement essential.

Key Features:

• Heated design — integrated heater element brings the sensor to operating temperature quickly, ensuring accurate readings even during cold starts
• 4-wire construction — two heater wires and two signal wires for reliable communication with the vehicle's ECM
• Downstream / after-catalytic-converter position — monitors post-cat exhaust gases for catalyst efficiency feedback
• Direct-fit replacement — engineered to match OEM specifications for a plug-and-play installation with no splicing or modification required
• OEM replacement quality — built to restore factory performance and emissions compliance

Backed by J.C. Whitney's 1-year, unlimited-mileage warranty, the JV960902 delivers a cost-effective solution for restoring proper oxygen sensor function and keeping your vehicle running cleanly and efficiently.