J.C. Whitney JM960906 Heated Downstream Oxygen Sensor 4-Wire OEM Replacement

The J.C. Whitney JM960906 is a heated, 4-wire downstream (post-catalytic converter) oxygen sensor designed as a direct OEM replacement. Built to restore proper exhaust monitoring and fuel management function, this sensor integrates seamlessly with the vehicle's engine control module (ECM) to maintain accurate air/fuel ratio feedback.

Key Features:

• Heated Design: Built-in heating element allows the sensor to reach operating temperature quickly, improving cold-start emissions performance and sensor longevity
• 4-Wire Configuration: Two heater circuit wires and two signal wires for full compatibility with OEM wiring harness connectors
• Downstream Position: Designed for the post-catalytic converter location, monitoring catalytic converter efficiency for OBD-II compliance
• OEM Replacement: Direct-fit design engineered to match original equipment specifications for accurate readings and reliable performance
• Durable Construction: Protective housing and sensing element built to withstand high exhaust temperatures and long-term underbody exposure

Replacing a faulty downstream oxygen sensor can resolve OBD-II diagnostic trouble codes (DTCs) such as P0136, P0137, P0138, or P0141, and restore proper catalytic converter monitoring. The JM960906 is a cost-effective, reliable solution for restoring factory-level exhaust system performance.