{"product_id":"delphi-es20003-oxygen-sensor","title":"Delphi ES20003 Oxygen Sensor - Rear","description":"\u003ch2\u003eDelphi ES20003 Heated Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20003 is a heated oxygen sensor designed for rear position installation on select Chevrolet, Oldsmobile, and Pontiac models. This sensor helps maintain optimal engine performance and emissions control by accurately monitoring oxygen levels in the exhaust system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster warm-up and improved accuracy\u003c\/li\u003e\n\u003cli\u003eFour-wire design 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 specified vehicles\u003c\/li\u003e\n\u003cli\u003eOverall length of 1140 mm for proper installation reach\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 ES20003 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, reducing emissions during cold starts. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size are engineered to fit securely in the rear exhaust position of compatible vehicles. This sensor is specifically compatible with Chevrolet Malibu and Corvette, Oldsmobile Cutlass, and Pontiac Alero, Grand Am models, providing precise fitment and function.\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\u003eReduces engine hesitation and stalling related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eAssists in lowering emissions by providing accurate exhaust gas data\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by enabling proper engine management adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Delphi ES20003 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the sensor’s rear position placement and connector orientation to match the original equipment. It is recommended to inspect the exhaust threads and clean them before installation to ensure a secure fit. Avoid over-tightening to prevent damage to the sensor or exhaust manifold.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDelphi oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The ES20003 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term functionality.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":43388517613749,"sku":"BBMX-ES20003","price":79.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_ES20003_Ang.jpg?v=1774712018","url":"https:\/\/www.partcatalog.com\/products\/delphi-es20003-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}