Oxygen O2 Sensor 22641-AA391 for Subaru Liberty Outback STi 2003-2006

Elevate your Subaru Liberty Outback STi's performance with the Oxygen O2 Sensor 22641-AA391, designed specifically for 2003-2006 models with EJ20X and EJ20Y engines. This high-quality OEM spec upstream sensor replaces part numbers 22641-AA220 and 22641-AA391, tackling common issues such as poor fuel economy, reduced power, and excess smoke.

Key features include:
- Premium quality, ensuring optimal fuel efficiency and engine performance
- 2 Year Warranty for peace of mind

Before purchasing, confirm compatibility with your current part using the listed part numbers and images. Enhance your driving experience today!