Rear Oxygen Sensor 22690-AA900 234-4195 Compatible with Subaru

This rear oxygen sensor is designed to replace part numbers 22690-AA900 and 234-4195 and is compatible with selected Subaru vehicles. It helps monitor exhaust oxygen levels after the catalytic converter and sends accurate signals to the engine control unit, supporting proper emissions control and stable engine performance.

This replacement rear O2 sensor is suitable for repairing common exhaust and engine performance issues such as check engine light, poor fuel economy, increased emissions, failed emissions test, rough idle, or faulty oxygen sensor readings.

Features:

• Replacement part numbers: 22690-AA900, 234-4195
• Placement: Downstream / Rear
• Product type: Oxygen Sensor / O2 Sensor / Lambda Sensor
• Compatible with selected Subaru vehicles
• Helps monitor exhaust oxygen levels accurately
• Supports proper emissions control and engine performance
• Direct replacement for the original rear oxygen sensor
• Built for stable signal output and reliable performance

Package Includes:
1 × Rear Oxygen Sensor

Note:
Please check the part numbers 22690-AA900 / 234-4195, downstream/rear installation position, connector type, and wire length before purchasing to ensure proper fitment.