Accueil » O2 Lambda Sensor for Subaru Impreza Legacy Outback 22641-AA420/AA590 Upstream Replacement

O2 Lambda Sensor for Subaru Impreza Legacy Outback 22641-AA420/AA590 Upstream Replacement

Unité de gestion de stock: 1005010086953307-Default Title
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€49,77
-37% €79,63 €49,77

Main description

This downstream O2 lambda sensor, model 22641-AA420 / AA590, is a precise, plug-and-play replacement designed for Subaru engines in the Impreza, Legacy, and Outback lineup. Built with a robust piezoelectric sensing element and an integrated heating type, it quickly reaches operating temperature for accurate fuel–air ratio measurements across load and RPM ranges. By providing reliable oxygen data from the exhaust stream, this sensor helps your Subaru maintain optimal combustion, reduce emissions, and preserve engine performance between service intervals.

Designed as a direct OEM replacement, it carries OEM numbers 22641-AA420 and 22641-AA590, ensuring compatibility with Subaru’s 2.5L H4 turbocharged applications listed in the product details. Whether you own an Impreza 2.5 GT, an Impreza WRX, a Legacy, or an Outback from the 2008–2010 era, this sensor is engineered to deliver consistent, long-lasting performance. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

With reliability built in, this sensor is supported by a two-year replacement warranty and responsive customer service. For peace of mind, choose a component backed by InterCyprus’ commitment to quality and dependable service since 2002.

Benefits & Tips

  • Maintains precise oxygen readings for efficient combustion, helping to optimize fuel economy and reduce exhaust emissions on affected Subaru models.
  • Fits Subaru Impreza 2.5 GT (2009–2010), Impreza WRX (2009–2010), Legacy (2008–2009), and Outback (2008–2009) with 2.5L H4 turbocharged engines.
  • Choose the correct OEM variant (22641-AA420 or 22641-AA590) for a seamless replacement without sensor harness adaptation.

Product specifications

  • Brand: IWOKPHD
  • Sensor Type: Piezoelectric
  • Heating Type: Heating Type
  • OEM No.: 22641-AA420, 22641-AA590
  • Part Numbers: 22641AA420, 22641 AA420, 22641AA42A, 22641-AA42A, 2349035, 234-9035; 22641AA590, 22641-AA590, F 00E 263 201, 24830, 250-54064, EOS-8017
  • Application: For Subaru Impreza 2.5 GT (2009–2010, 2.5L H4 Turbocharged); Subaru Impreza WRX (2009–2010, 2.5L H4 Turbocharged); Subaru Legacy (2008–2009, 2.5L H4 Turbocharged); Subaru Outback (2008–2009, 2.5L H4 Turbocharged)
  • Origin: Mainland China

Package includes:

  • 1 pcs

Warnings / Reminders

  • Verify compatibility with your exact Subaru model and engine code using the application list above before purchase.
  • All items are shipped within 2 working days after payment is confirmed; ensure your shipping address is correct to avoid delays.
  • Warranty and return details: 2-year replacement warranty; if you encounter an issue, contact us with a problem description or photos and we will respond within 24 hours (excluding weekends and holidays).

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.