{"product_id":"walker-250-23521-oxygen-sensor","title":"Walker 250-23521 Oxygen Sensor - Downstream Front","description":"\u003ch2\u003eOverview of Walker 250-23521 Oxygen Sensor for Nissan Maxima\u003c\/h2\u003e\u003cp\u003eThe Walker 250-23521 oxygen sensor is designed specifically for Nissan Maxima 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 Maxima vehicles\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 12.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eRadiused polygon female connector for secure wiring harness connection\u003c\/li\u003e\n\u003cli\u003eWiring harness length of 16.65 inches and overall length of 20.2 inches\u003c\/li\u003e\n\u003cli\u003eWire gauge measurement of 20 for reliable electrical performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker Products OE oxygen sensor (part number 250-23521) is engineered with a heated sensor element to provide faster response times and improved accuracy in measuring oxygen levels in the exhaust gases. The sensor features a 3-wire design, which includes a heating element to maintain optimal operating temperature. Its specific fitment for Nissan Maxima models ensures compatibility and ease of installation. The sensor mounts via a threaded connection with a 12.0 mm diameter, providing a secure and leak-free fit. The wiring harness length of 16.65 inches and overall length of 20.2 inches allow for proper routing and connection within the vehicle's emission system. The radiused polygon female connector is designed to match the original equipment specifications, ensuring a reliable electrical connection.\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 it matches the fit, form, and function required by Nissan Maxima vehicles. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system and supports compliance with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen level readings for proper air-fuel mixture control\u003c\/li\u003e\n\u003cli\u003eHelps resolve engine performance issues such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring efficient catalytic converter operation\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by maintaining optimal combustion conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 250-23521 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 12.0 mm threaded sensor to prevent damage. Verify the wiring harness connector matches the radiused polygon female design for a secure fit. Follow torque specifications recommended by Nissan for proper sensor mounting. It is advisable to inspect the wiring and connector for any damage before installation to ensure reliable sensor operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. This part number 250-23521 undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Nissan Maxima vehicles.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43531533811893,"sku":"DKHD-250-23521","price":98.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_25023521_Fro.jpg?v=1774891539","url":"https:\/\/www.partcatalog.com\/products\/walker-250-23521-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}