J.C. Whitney JRD96090003 Heated Oxygen Sensor 4-Wire Upstream OEM Replacement

The J.C. Whitney JRD96090003 is a direct-fit, OEM-replacement upstream heated oxygen sensor designed for precise air/fuel mixture monitoring. This 4-wire heated oxygen sensor (HO2S) allows the engine control module (ECM) to continuously optimize combustion efficiency, helping maintain fuel economy, reduce emissions, and protect catalytic converter performance.

Key Features:

• OEM Replacement: Engineered to match original equipment specifications for a direct, no-modification installation
• Heated Design: Internal heater element brings the sensor to operating temperature quickly, improving cold-start performance and reducing emissions during warm-up
• 4-Wire Construction: Two heater circuit wires and two signal wires for reliable, accurate exhaust gas readings
• Upstream Position: Mounts before the catalytic converter to provide closed-loop feedback to the ECM for optimal fuel trim adjustments
• Durable Build: Constructed to withstand extreme exhaust system heat and vibration for long service life

Replacing a faulty oxygen sensor restores proper fuel management, clears related OBD-II diagnostic trouble codes (DTCs), and helps prevent costly downstream damage to catalytic converters. The JRD96090003 is a reliable, cost-effective solution for restoring factory-level performance.