{"product_id":"delphi-es20191-oxygen-sensor-front-or-rear","title":"Delphi ES20191 Oxygen Sensor - Front or Rear","description":"\u003ch2\u003eDelphi ES20191 Heated Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20191 oxygen sensor is designed to provide accurate emissions control for select Chevrolet, Geo, and Suzuki vehicles. Featuring a heated sensor element and a 4-wire design, this oxygen sensor helps maintain optimal engine performance and fuel efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for faster warm-up and accurate readings\u003c\/li\u003e\n\u003cli\u003e4-wire configuration for reliable signal and heater circuit\u003c\/li\u003e\n\u003cli\u003eSquare connector shape for secure and proper fitment\u003c\/li\u003e\n\u003cli\u003eThread size of 18 x 1.5 mm compatible with specified vehicles\u003c\/li\u003e\n\u003cli\u003eOverall length of 520.0 mm for correct installation depth\u003c\/li\u003e\n\u003cli\u003eIncludes oxygen sensor and instruction sheet for guidance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20191 oxygen sensor is engineered with a heated sensor type that ensures quicker activation after engine start, reducing emissions during cold starts. Its 4-wire design supports both the sensor signal and the integrated heater circuit, improving sensor responsiveness and durability. The square connector shape and 18 x 1.5 mm thread size are tailored for precise fitment in front or rear positions depending on the vehicle's requirements. This sensor is compatible with Chevrolet, Geo, and Suzuki models including the Esteem, Sidekick, Tracker, and X-90. For exact position compatibility, refer to your vehicle’s service manual.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve rough idling caused by incorrect air-fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eAddresses increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by providing accurate oxygen level data\u003c\/li\u003e\n\u003cli\u003eReduces engine hesitation and stalling issues related to faulty sensors\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Delphi ES20191 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct thread size (18 x 1.5 mm) to avoid cross-threading. Confirm the sensor position (front or rear) matches your vehicle’s specifications. Connect the square-shaped connector securely to prevent signal interruptions. Follow the included instruction sheet for torque specifications and wiring details.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDelphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20191 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details are not provided here, Delphi typically offers coverage against manufacturing defects. Consult your purchase documentation for exact warranty terms.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":52089085755573,"sku":"BBMX-ES20191","price":102.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_ES20191_Fro.jpg?v=1775148296","url":"https:\/\/www.partcatalog.com\/products\/delphi-es20191-oxygen-sensor-front-or-rear","provider":"PartCatalog","version":"1.0","type":"link"}