{"product_id":"walker-350-33044-oxygen-sensor","title":"Walker 350-33044 Oxygen Sensor - Upstream Left","description":"\u003ch2\u003eOverview of Walker 350-33044 Oxygen Sensor for Nissan and Infiniti\u003c\/h2\u003e\u003cp\u003eThe Walker 350-33044 oxygen sensor is designed specifically for Nissan Pathfinder and Infiniti QX4 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 Pathfinder and Infiniti QX4\u003c\/li\u003e\n\u003cli\u003e35.94-inch wiring harness length for flexible installation\u003c\/li\u003e\n\u003cli\u003e20 gauge wire with 3-wire configuration\u003c\/li\u003e\n\u003cli\u003eRadiused polygon male connector for secure connection\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eOverall length of 39.49 inches for proper fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Walker Products Aftermarket oxygen sensor (part number 350-33044) is engineered to meet the exact specifications of Nissan Pathfinder and Infiniti QX4 vehicles. 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 sensor includes a 35.94-inch wiring harness with 20 gauge wires arranged in a 3-wire configuration, ensuring reliable electrical connectivity. Its radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter allow for a secure and precise installation. The overall length of 39.49 inches accommodates the specific routing requirements of the exhaust system in these vehicles.\u003c\/p\u003e\u003ch2\u003eWalker Products Aftermarket Line\u003c\/h2\u003e\u003cp\u003eThe Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, providing a direct replacement solution designed to maintain factory performance and emissions compliance for Nissan and Infiniti vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for proper air-fuel mixture control\u003c\/li\u003e\n\u003cli\u003eHelps resolve rough idling and poor fuel economy\u003c\/li\u003e\n\u003cli\u003eReduces emissions-related check engine light triggers\u003c\/li\u003e\n\u003cli\u003eImproves engine performance by ensuring correct sensor feedback\u003c\/li\u003e\n\u003cli\u003ePrevents failed emissions tests due to faulty oxygen sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 350-33044 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the radiused polygon male connector is fully seated and locked in place. Thread the sensor carefully to avoid cross-threading, tightening to manufacturer torque specifications. Verify all connections before starting the engine.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-33044 part number undergoes rigorous testing to ensure reliable operation in Nissan Pathfinder and Infiniti QX4 vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43537939562677,"sku":"DKHD-350-33044","price":58.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35033044_Fro.jpg?v=1774891927","url":"https:\/\/www.partcatalog.com\/products\/walker-350-33044-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}