{"product_id":"walker-350-34031-oxygen-sensor","title":"Walker 350-34031 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker Oxygen Sensor 350-34031\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34031 oxygen sensor is designed specifically for Nissan D21 and Pathfinder models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Nissan D21 and Pathfinder vehicles\u003c\/li\u003e\n\u003cli\u003e68.03 inches wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003e20 gauge wire with 4-wire configuration\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003e12.0 mm threaded mounting for reliable fit\u003c\/li\u003e\n\u003cli\u003eOverall length of 71.57 inches for proper placement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor (part number 350-34031) is engineered to meet the exact specifications of Nissan D21 and Pathfinder models. Featuring a heated sensor element, it provides quicker warm-up times compared to non-heated sensors, improving fuel efficiency and reducing emissions sooner after engine start. The 4-wire design includes a dedicated heater circuit and signal wires, ensuring accurate oxygen level readings. The wiring harness length of 68.03 inches allows for convenient routing within the engine bay, while the radiused polygon male connector ensures a secure and precise electrical connection. The sensor mounts via a 12.0 mm threaded fitting, compatible with factory mounting points for straightforward installation.\u003c\/p\u003e\u003ch2\u003eWalker Products Aftermarket Line\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This oxygen sensor is part of their aftermarket line, providing a reliable replacement option tailored for specific vehicle applications like the Nissan D21 and Pathfinder. The focus on exact fitment and quality materials supports consistent sensor performance and durability.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for faulty or failing oxygen sensors in Nissan D21 and Pathfinder\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor fuel economy caused by inaccurate oxygen readings\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper air-fuel mixture monitoring\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine performance and drivability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 350-34031 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector type matches the vehicle’s harness for a secure fit. Thread the sensor carefully into the mounting hole to prevent cross-threading. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34031 should be confirmed at purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing emission control sensors on Nissan D21 and Pathfinder vehicles.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43537956831413,"sku":"DKHD-350-34031","price":113.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034031_Fro.jpg?v=1774891952","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34031-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}