Subaru OEM Oxygen Sensor Forester XT 2009 / WRX 2008 | 22641AA490

Overview

The Genuine Subaru OEM Front Oxygen Sensor (Part #22641AA490) is an exact-fit replacement sensor designed specifically for the 2008 Subaru WRX and 2009 Subaru Forester XT. As a factory-original component, this O2 sensor ensures your engine management system receives precise exhaust gas readings, maintaining optimal fuel trim, emissions compliance, and engine performance — just as Subaru engineered it.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to Subaru's original factory specifications for a guaranteed exact fit and reliable long-term performance.
• Precise Fuel Management — Delivers accurate air/fuel ratio data to the ECU, helping maintain optimal combustion efficiency and fuel economy.
• Emissions Compliance — Restores proper emissions system function to keep your WRX within factory and regulatory standards.
• Direct Plug-and-Play Installation — OEM connector and thread pitch match the factory harness and exhaust bung exactly — no adapters or modifications required.
• Eliminates Check Engine Lights — Replaces a faulty upstream sensor to resolve P0130, P0131, P0132, P0133, and related O2 sensor DTCs.
• Factory Warranty Backed — Covered under Subaru's genuine parts warranty for peace of mind.

What's Included

• 1x Genuine Subaru Front (Upstream) Oxygen Sensor — Part #22641AA490

Specifications

Fitment & Compatibility

This oxygen sensor is confirmed to fit the following vehicle:

2009 Subaru Forester XT

2008 Subaru WRX

Always verify your vehicle's VIN and existing part number against 22641AA490 before ordering to confirm fitment.

Installation

This is a direct OEM replacement oxygen sensor and is designed for straightforward bolt-on installation. Standard O2 sensor removal tools are recommended. It is advisable to clear any stored diagnostic trouble codes (DTCs) with an OBD-II scanner after installation. If you are not comfortable working around hot exhaust components or disconnecting fuel system sensors, professional installation by a qualified Subaru technician is recommended.