Replacement DS96090005 Heated Oxygen Sensor with Female Connector - 4-Wire

The Replacement DS96090005 is a direct-fit, heated oxygen sensor designed as an OEM-quality replacement for compatible Subaru Forester and WRX applications. Engineered to restore proper exhaust monitoring and engine management function, this sensor delivers reliable performance that matches original equipment specifications.

The oxygen sensor continuously monitors unburned oxygen levels in the exhaust stream and reports that data to the engine control unit (ECU). This feedback allows the ECU to precisely adjust the air-fuel mixture for optimal combustion efficiency, fuel economy, and emissions output. A failing or failed O2 sensor commonly triggers a check engine light and can lead to increased fuel consumption and elevated emissions.

Key Features:

• Heated design — integrated heater element brings the sensor to operating temperature quickly, ensuring accurate readings even during cold starts
• 4-wire configuration — two heater wires and two signal wires for precise ECU communication
• Female connector — matches the factory wiring harness for a plug-and-play installation
• Direct-fit replacement — engineered to OEM specifications for proper fit and function
• Restores performance — helps eliminate O2 sensor-related check engine codes and restore fuel efficiency

Installation requires a standard 22mm oxygen sensor socket. As with all threaded exhaust components, applying anti-seize compound to the sensor threads prior to installation is recommended. This sensor is also commonly referred to as an O2 sensor, lambda sensor, or exhaust gas oxygen (EGO) sensor.