{"product_id":"walker-250-23503-oxygen-sensor","title":"Walker 250-23503 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 250-23503 Oxygen Sensor for Nissan Vehicles\u003c\/h2\u003e\u003cp\u003eThe Walker 250-23503 oxygen sensor is designed specifically for Nissan D21 and Pathfinder models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 3-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Nissan D21 and Pathfinder\u003c\/li\u003e\n\u003cli\u003e68.43 inches wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 12.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eOverall length of 71.97 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor (part number 250-23503) features a heated sensor type that allows for faster warm-up times and improved sensor response. The 3-wire design supports both signal and heater circuits, ensuring consistent operation under various engine conditions. The wiring harness length of 68.43 inches provides ample reach for installation in Nissan D21 and Pathfinder models. The sensor’s threaded mounting type with a 12.0 mm diameter thread ensures a secure and leak-free fit. The radiused polygon male connector is designed for a precise and reliable electrical connection, minimizing the risk of disconnection or corrosion. With a wire gauge measurement of 20, the sensor maintains signal integrity for accurate oxygen level 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 OEM specifications. This oxygen sensor is part of the Walker Products OE series, which emphasizes durability and precise fitment for specific vehicle applications. Using a Walker Products OE sensor like the 250-23503 helps maintain factory-level performance and emission standards for Nissan D21 and Pathfinder vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps maintain proper air-fuel mixture for efficient combustion\u003c\/li\u003e\n\u003cli\u003eReduces engine misfires caused by faulty oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003ePrevents increased emissions and failed emissions tests\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by providing accurate sensor data\u003c\/li\u003e\n\u003cli\u003eResolves 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 Walker 250-23503 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly torque the sensor to manufacturer specifications to prevent leaks. Inspect wiring for damage and secure the harness to prevent strain or disconnection during operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 250-23503 part undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Walker Products OE parts typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43531525193909,"sku":"DKHD-250-23503","price":102.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25023503_Fro.jpg?v=1774891536","url":"https:\/\/www.partcatalog.com\/products\/walker-250-23503-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}