Details

• Brand:

  

• SKU:

  22641AA670

• Positions: Rear, Front
• Other Names:

  Oxygen Sensor, Rear Oxygen Sensor, Sensor Assembly Air/Fuel Ratio

• Description:

  This air-fuel ratio sensor (22641AA670) measures how much oxygen is in your exhaust. This component is also called a wideband or broadband sensor since it can detect a wide range of fuel mixtures for your car.
  

  Once the sensor measures how much oxygen your exhaust has, it sends the data to your engine control unit (ECU). The ECU then adjusts the mixture to maintain the optimal air-to-fuel ratio for your car.

  Over time, your A/F ratio sensor can get contaminated and have incorrect air-fuel mixture readings. The sensor can also malfunction due to extreme heat or faulty wiring. A defective car oxygen sensor can trigger your Check Engine light, reduce the fuel economy and engine power of your ride, or cause rough idling.

  Subaru Online Parts offers genuine air-fuel ratio sensor assembly replacements for select Subaru models online. These oxygen sensors are designed to fit and work the same as the factory sensors on your ride. They are also made from production-grade materials to ensure their functionality and compatibility with your car.

  We offer great deals on our Subaru A/F sensors, as we sell them for less than the manufacturer’s original retail price. We can also ship your orders right away so you can start any repairs or upgrades. And what’s more, we’ll answer any questions you may have about our products. Equip your Subaru with the right A/F ratio sensor. Get OEM Subaru parts and accessories at discounted prices when you shop at Subaru Online Parts.

  
  

  Air/Fuel Sensor - Subaru (22641AA670)

  The Air/Fuel Sensor - Subaru (22641AA670) is a genuine OEM emissions control component designed to provide accurate feedback to the engine control unit (ECU) for optimal air-fuel ratio management. Positioned in the exhaust system, this sensor plays a critical role in engine efficiency, emissions control, and fuel economy by continuously monitoring oxygen levels and adjusting fuel delivery in real-time.

  Manufactured with a high-precision ceramic sensing element and stainless steel body, the 22641AA670 air/fuel sensor is built to perform in extreme temperature and pressure environments. It delivers fast response times and reliable readings, allowing the ECU to fine-tune combustion for peak performance and reduced emissions.

  This OEM sensor is compatible with select Subaru models, and is the same part used on the production line—ensuring an exact fit, proper connector match, and easy plug-and-play installation. It is ideal for resolving issues like check engine lights, poor fuel economy, or failed emissions tests due to faulty readings from worn-out or aftermarket sensors.

  Key benefits include:

  • ✔ OEM-grade sensor for accurate air/fuel ratio monitoring

  • ✔ Fast response for real-time ECU adjustments

  • ✔ Improves engine efficiency and reduces emissions

  • ✔ Direct-fit with factory wiring and exhaust threads

  • ✔ Engineered for durability in high-heat exhaust environments

  When performance, emissions, and fuel economy are at stake, trust the Subaru 22641AA670 Air/Fuel Sensor to deliver precise measurements and dependable feedback. It's the trusted choice for mechanics and DIYers looking to maintain Subaru's factory-level performance and reliability.

  
  

• Condition: New

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