{"product_id":"walker-250-54085-oxygen-sensor-upstream-upstream-left-or-upstream-right","title":"Walker 250-54085 Oxygen Sensor - Upstream, Upstream Left or Upstream Right","description":"\u003ch2\u003eOverview of Walker Products OE Oxygen Sensor 250-54085\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE Oxygen Sensor 250-54085 is designed specifically for select Lexus and Toyota models, including the GS350, GX460, IS250, Land Cruiser, LX570, Sequoia, Tacoma, and Tundra. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance through precise air-fuel mixture measurement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Lexus and Toyota vehicles\u003c\/li\u003e\n\u003cli\u003e4.45-inch wiring harness length with 20-gauge wire\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector with 4 wires\u003c\/li\u003e\n\u003cli\u003eOverall length of 7.99 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. The 4-wire configuration supports both sensor heating and signal transmission, while the 20-gauge wire ensures durability and reliable electrical performance. The wiring harness length of 4.45 inches provides adequate reach for installation without excess slack. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the specified Lexus and Toyota models. The radiused polygon male connector ensures a secure and precise electrical connection, reducing the risk of signal loss or corrosion. With an overall length of 7.99 inches, this sensor fits correctly within the exhaust system for accurate readings.\u003c\/p\u003e\u003ch2\u003eWalker Products OE Brand Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on Lexus and Toyota vehicles. The OE designation indicates that this sensor is engineered to match the exact fit and function required by the vehicle manufacturer.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve poor fuel economy caused by incorrect air-fuel mixture readings\u003c\/li\u003e\n\u003cli\u003eReduces engine performance issues related to faulty oxygen sensors\u003c\/li\u003e\n\u003cli\u003eAssists in passing emissions tests by maintaining proper exhaust gas monitoring\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to sensor malfunction\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine idling and acceleration by providing accurate data\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before beginning installation to avoid burns. The threaded mounting requires proper torque to prevent exhaust leaks or sensor damage. Verify the connector shape and gender match the vehicle harness to ensure a secure connection. Handle the sensor carefully to avoid damaging the heating element or wiring. It is recommended to use anti-seize compound on the threads if not pre-applied to facilitate future removal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain emissions compliance and engine efficiency consistent with factory requirements.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":51870209376437,"sku":"DKHD-250-54085","price":142.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25054085_Fro.jpg?v=1774891831","url":"https:\/\/www.partcatalog.com\/products\/walker-250-54085-oxygen-sensor-upstream-upstream-left-or-upstream-right","provider":"PartCatalog","version":"1.0","type":"link"}