{"product_id":"delphi-es20188-oxygen-sensor","title":"Delphi ES20188 Oxygen Sensor - Rear","description":"\u003ch2\u003eDelphi Heated Oxygen Sensor for Subaru Vehicles\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20188 oxygen sensor is designed to provide accurate emissions monitoring for select Subaru models. This heated oxygen sensor ensures optimal engine performance and emissions control by delivering precise air-fuel mixture data to the vehicle's engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003e4-wire design for 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 for proper installation\u003c\/li\u003e\n\u003cli\u003eOverall length of 445.0 mm to match factory specifications\u003c\/li\u003e\n\u003cli\u003eIncludes oxygen sensor and instruction sheet\u003c\/li\u003e\n\u003cli\u003ePositioned for rear installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20188 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, improving emissions control efficiency. Its 4-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 position of compatible Subaru models, including the Baja, Legacy, and Outback. With an overall length of 445.0 mm, this sensor matches OEM specifications for seamless integration.\u003c\/p\u003e\u003ch2\u003eCompatible Subaru Models\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is compatible with the following Subaru vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSubaru Baja\u003c\/li\u003e\n\u003cli\u003eSubaru Legacy\u003c\/li\u003e\n\u003cli\u003eSubaru Outback\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUsing the Delphi ES20188 sensor helps maintain proper emissions levels and engine efficiency in these models.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Oxygen Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy due to incorrect air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eIncreased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eEngine performance problems such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eDamage to catalytic converter from unregulated exhaust gases\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Delphi ES20188 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct 18 x 1.5 mm thread size to avoid cross-threading. Connect the 4-wire harness securely to the square connector to maintain proper electrical contact. Follow the included instruction sheet for torque specifications and sensor positioning in the rear location. Proper installation is critical for accurate sensor readings and emissions control.\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 ES20188 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 to support long-term use in Subaru Baja, Legacy, and Outback models.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":43388529705141,"sku":"BBMX-ES20188","price":111.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_ES20188_Fro_d4e2942b-df23-45ea-95f3-623577835418.jpg?v=1774712067","url":"https:\/\/www.partcatalog.com\/products\/delphi-es20188-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}