Air Fuel Ratio Sensor for Subaru Outback 2.5L Engine, 4-Wire Heated Oxygen Sensor, Part 2349015
Upgrade your Subaru’s fuel management with the Subaru Outback 2.5L Air Fuel Ratio Sensor (OEM 2349015) from WEIDA AUTO PARTS. This 4-wire heated oxygen sensor uses magnetic induction to deliver precise readings of the exhaust gas oxygen level, feeding your engine control unit with real-time data to optimize the air–fuel mix. Compatible with 2003–2004 Subaru models including Outback, Legacy, Impreza, and Forester 2.5L, this OEM-equivalent sensor helps restore smooth idle, responsive acceleration, and improved fuel efficiency while reducing emissions. Designed to match the original part (OEM No. 234-9015), it preserves the ECU calibration and downstream catalyst performance. Origin: Mainland China. The heated 4-wire design enables faster warm-up and stable readings across a wide temperature range, ensuring reliable operation from cold starts to highway cruising.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Benefits & Tips
- Enjoy steadier idle and crisper throttle response as the ECU receives accurate oxygen readings during lean and rich conditions.
- Potential fuel economy improvements by maintaining optimal air-fuel ratio across varying driving scenarios, including cold starts and steady-speed cruising.
- Ideal for DIY enthusiasts with basic mechanical skills or professional technicians replacing worn sensors; ensure correct connector alignment and secure installation to prevent misreadings.
Product Specifications
- Brand: WEIDA AUTO PARTS
- OEM No.: 234-9015
- Vehicle compatibility: 2003–2004 Subaru Outback, Legacy, Impreza, Forester 2.5L
- Sensor Type: Magnetic Induction
- Configuration: 4-Wire, Heated
- Measuring Range: 03–04 Subaru Outback, Legacy, Impreza, Forester 2.5L
- Origin: Mainland China
Package includes:
- 1 x Subaru Outback 2.5L Air Fuel Ratio Sensor (O2 Sensor) – OEM 234-9015
Warnings / Reminders
- Professional installation is recommended to ensure correct sensor orientation and electrical connection.
- Disconnect the vehicle battery prior to replacement and follow proper safety procedures.
- Handle the sensor carefully and ensure the connector is fully seated to prevent signal loss or misreadings.
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