Home » Oxygen Sensor Lambda O2 for Vauxhall Astra K MK7 SRI NAV 1.4 Turbo 12663011 Direct Fit

Oxygen Sensor Lambda O2 for Vauxhall Astra K MK7 SRI NAV 1.4 Turbo 12663011 Direct Fit

SKU: 1005010086920378-Default Title
Default Title
€76,47
-37% €122,35 €76,47

This Oxygen Sensor (Lambda O2 Sensor) is a direct, OEM‑matched replacement for the 2018 Vauxhall Astra K MK7 SRI NAV 1.4 Turbo D14XFT engine. Designed to accurately monitor exhaust oxygen levels, it helps the engine control unit (ECU) maintain the ideal air–fuel ratio for efficient combustion, lower emissions, and smoother performance. Featuring piezoelectric sensing and a heating element, this sensor reaches operating temperature quickly, improving cold-start response and stabilizing engine behavior sooner after startup. Brand: Choice.

By delivering precise Lambda readings, the sensor enables real-time fuel trim adjustments, promoting improved fuel economy and reduced pollutant output. The result is steadier idle, consistent throttle response, and reliable turbocharged performance, even under varying driving conditions. This replacement part matches the OEM specification for seamless integration with your Astra K’s fuel management system.

Benefits & Tips

  • Restore optimal fuel efficiency and emissions performance by replacing a failing oxygen sensor; this helps prevent rich/lean fueling cycles and protects your catalytic converter.
  • Match the OEM numbers 12663011, 12663317, 55489509, 4448201 to ensure correct fitment for your 2018 Astra K MK7 SRI NAV 1.4 Turbo.
  • Install with clean connectors and secure mounting to avoid intermittent readings; do not overtighten the sensor to prevent thread damage.

Product specifications

  • Brand: Choice
  • Sensor Type: Piezoelectric
  • Heating Type: Heating
  • OEM No. (part numbers): 12663011, 12663317, 55489509, 4448201
  • Application: For 2018 Vauxhall Astra K MK7 SRI NAV - 1.4 Turbo D14XFT Engine
  • Measuring Range: Probe Air Fuel Ratio Lambda Oxygen O2 Sensor
  • Origin: Mainland China
  • Package Includes: 1 x Oxygen Sensor
  • Warranty: 1 year Replacement Warranty

Package includes:

  • 1 x Oxygen Sensor

Warnings / Reminders

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  • We will replace items that malfunction on receipt; returns must be in original packaging and in the same condition as received.
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  • All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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