Subaru OEM Oxygen Sensor Legacy / Outback 2013-2014 | 22641AA66A

Overview

The Genuine Subaru OEM Air/Fuel Ratio (AFR) Oxygen Sensor (Part #22641AA66A) is a direct-fit replacement sensor engineered specifically for the 2013–2014 Subaru Legacy and Outback 2.5i. As a factory-original component, this upstream oxygen sensor ensures your engine management system receives precise exhaust gas readings for optimal fuel trim, emissions performance, and fuel economy — exactly as Subaru intended.

Key Features & Benefits

• Genuine Subaru OEM Part — Manufactured to exact factory specifications for a guaranteed fit, form, and function with no modifications required.
• Precise Air/Fuel Ratio Monitoring — Wide-band AFR sensor technology delivers accurate exhaust gas readings to the ECU, supporting optimal combustion efficiency and fuel economy.
• Exact-Fit Replacement — Plug-and-play installation using the factory wiring harness connector; no adapters or splicing needed.
• Emissions Compliance — Maintains your vehicle's OEM emissions performance to meet federal and state standards.
• Factory Warranty Coverage — Backed by Subaru's genuine parts warranty for peace of mind.
• Durable Construction — Built to OEM tolerances with materials designed to withstand extreme exhaust heat and long-term use.

What's Included

• 1x Genuine Subaru AFR Oxygen Sensor (Part #22641AA66A)

Specifications

Fitment & Compatibility

This Genuine Subaru AFR Oxygen Sensor (22641AA66A) is engineered for the following vehicles:

2013-2014 Subaru Legacy

2013-2014 Subaru Outback

Note: Please verify your vehicle's VIN and trim level before ordering to confirm exact fitment. This sensor is designed for naturally aspirated 2.5i models only — not compatible with turbocharged variants.

Installation

This AFR oxygen sensor is a direct OEM replacement and connects directly to the factory wiring harness without modification. Most experienced DIYers can complete the swap using a standard oxygen sensor socket and wrench. For best results, install with the engine at operating temperature to ease removal of the old sensor. Professional installation is recommended if you are unfamiliar with exhaust system components. Always use anti-seize compound on the sensor threads during installation.