Replacement RB96090002 Wideband Oxygen Sensor Upstream - 5-Wire

The Replacement RB96090002 is a wideband, 5-wire upstream oxygen sensor engineered as a direct OEM-replacement unit. Designed to restore precise air-fuel ratio monitoring, this sensor feeds critical data to the engine control unit (ECU), enabling optimal fuel delivery, combustion efficiency, and emissions compliance.

As an upstream (pre-catalyst) sensor, it measures exhaust gas oxygen content before the catalytic converter, making it a primary input for closed-loop fuel control. The wideband design offers a broader measurement range compared to narrowband sensors, delivering more accurate readings across varying engine loads and driving conditions.

Key Features:

• Direct OEM Replacement – Designed to match original equipment specifications for a plug-and-play installation
• Wideband Technology – Provides precise air-fuel ratio data across a wide lambda range for improved engine management
• 5-Wire Construction – Includes dedicated heater circuit wires for rapid sensor warm-up and accurate cold-start performance
• Upstream (Pre-Catalyst) Position – Replaces the primary oxygen sensor used for active fuel trim control
• OEM-Grade Materials – Built to withstand extreme exhaust temperatures and long-term underhood conditions

This sensor is a reliable, cost-effective alternative to dealer-sourced parts, restoring factory-level performance and helping eliminate oxygen sensor-related fault codes and check engine lights.