Upstream O2 Oxygen Lambda Sensor 22641-AA420 for Subaru Impreza Legacy Outback
Upgrade your Subaru’s exhaust monitoring with the Upstream O2 Oxygen Lambda Sensor 22641-AA420, a precise replacement designed to keep engine management accurate and efficient. This upstream sensor plays a critical role in measuring the oxygen level in the exhaust, feeding data to the engine control unit to optimize the air–fuel mixture. The result is smoother idle, improved throttle response, reduced emissions, and better fuel economy in daily driving and spirited performance alike. With a heating type feature, this sensor heats up quickly to provide accurate readings from startup, helping your car reach optimal efficiency faster in cold conditions.
Designed for compatibility with Subaru models including Impreza 2.5 GT (2009–2010, 2.5L H4 Turbo), Impreza WRX (2009–2010, 2.5L H4 Turbo), Legacy (2008–2009, 2.5L H4 Turbocharged), and Outback (2008–2009, 2.5L H4 Turbocharged), this unit aligns with OEM specifications to ensure reliable performance. OEM numbers associated with this sensor include 22641AA420, 22641-AA420, 22641AA42A, 22641-AA42A, 2349035, and 234-9035, offering confidence in a precise fit and function.
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.
Benefits & Tips
- Improve fuel efficiency and throttle response by ensuring accurate exhaust gas readings are reported to the ECU.
- Reduce cold-start lag with the sensor’s heating type, which brings the sensor up to operating temperature more quickly.
- Ideal as a straightforward replacement part to restore proper engine management on compatible Subaru models, maintaining optimal emissions control and engine performance.
Product specifications
- Brand: IWOKPHD
- Part numbers: 22641AA420, 22641 AA420, 22641AA42A, 22641-AA42A, 2349035, 234-9035
- Sensor Type: Piezoelectric
- Type: Heating Type
- Category: Upstream O2 Oxygen Lambda Sensor
- Measuring Range: For Subaru Impreza Legacy Outback
- Application: 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
- Warranty: 2 years (Replacement Warranty)
Package includes
- 1 pcs
Warnings/Reminders
- Ensure compatibility with your specific Subaru model and engine variant before installation.
- All items are shipped within 2 working days after payment confirmation; verify shipping address to avoid delays.