{"product_id":"delphi-es20123-oxygen-sensor","title":"Delphi ES20123 Oxygen Sensor - Center, Rear or Rear Left","description":"\u003ch2\u003eDelphi ES20123 Heated Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20123 is a heated oxygen sensor designed for precise emission control in select Mazda vehicles. Engineered to meet OEM specifications, this sensor helps maintain optimal air-fuel mixture for efficient engine performance and reduced emissions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster warm-up and accurate readings\u003c\/li\u003e\n\u003cli\u003e4-wire configuration ensuring reliable electrical connections\u003c\/li\u003e\n\u003cli\u003eSquare connector shape for secure fitment\u003c\/li\u003e\n\u003cli\u003eThread size of 18 x 1.5 mm compatible with specific Mazda exhaust ports\u003c\/li\u003e\n\u003cli\u003eOverall length of 660.0 mm suitable for center, rear, and rear left positions\u003c\/li\u003e\n\u003cli\u003eIncludes oxygen sensor and instruction sheet for installation guidance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20123 oxygen sensor features a heated design that accelerates sensor activation, improving fuel efficiency and emission control shortly after engine start. Its 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size provide a precise fit for Mazda models including the 6, MPV, Protege, and Protege5. With an overall length of 660 mm, this sensor is intended for center, rear, and rear left exhaust positions, depending on vehicle-specific requirements.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps correct air-fuel mixture for improved fuel economy\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by providing accurate oxygen level data\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eAddresses check engine light triggers caused by sensor failure\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine idling and acceleration response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Delphi ES20123 oxygen sensor, ensure the vehicle is compatible with the specified fitment: Mazda 6, MPV, Protege, and Protege5 models. Use the included instruction sheet for proper torque specifications and connector alignment. It is recommended to replace the sensor when the engine is cool to avoid burns and to apply anti-seize compound on the threads to facilitate future removal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDelphi manufactures the ES20123 oxygen sensor to meet strict quality standards, ensuring durability and reliable operation under normal driving conditions. This part is backed by Delphi's standard warranty coverage, providing confidence in its performance and longevity.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":43388526428341,"sku":"BBMX-ES20123","price":124.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_ES20123_Fro_53898727-f0ea-48ac-a960-354c389fc78a.jpg?v=1774712051","url":"https:\/\/www.partcatalog.com\/products\/delphi-es20123-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}