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The Genuine Subaru OEM Front Oxygen Sensor (Part #22641AA32A) is the factory-original upstream O2 sensor designed specifically for the 2005–2007 Subaru Legacy GT. As a direct OEM replacement, this sensor delivers the precise air-fuel ratio feedback your ECU requires for optimal engine performance, fuel efficiency, and emissions compliance — with a guaranteed exact fit every time.
| Subaru Part Number | 22641AA32A |
|---|---|
| Part Type | Oxygen (O2) Sensor — Front / Upstream (Pre-Catalyst) |
| Position | Front (Bank 1, Sensor 1) |
| Brand | Genuine Subaru OEM |
| Application | 2005–2007 Subaru Legacy GT |
| Engine | EJ255 2.5L Turbocharged Boxer |
| OEM Cross-Reference | 22641AA32A |
This is a direct OEM replacement O2 sensor designed for straightforward bolt-on installation. The factory connector and thread pitch match exactly, requiring no adapters or modifications. Basic hand tools and an O2 sensor socket are typically sufficient. Clearing existing diagnostic trouble codes (DTCs) with an OBD-II scanner after installation is recommended. If you are not comfortable working with exhaust components or electrical sensors, professional installation by a Subaru-certified technician is advised.
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