{"product_id":"walker-350-34444-oxygen-sensor","title":"Walker 350-34444 Oxygen Sensor - Downstream, Downstream Front or Downstream Rear","description":"\u003ch2\u003eOverview of Walker Oxygen Sensor 350-34444 for Toyota Sienna\u003c\/h2\u003e\u003cp\u003eThe Walker Products Aftermarket oxygen sensor 350-34444 is designed specifically for Toyota Sienna models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Toyota Sienna vehicles\u003c\/li\u003e\n\u003cli\u003e18.23-inch wiring harness length for proper installation\u003c\/li\u003e\n\u003cli\u003e20 gauge wire measurement with 4 wires for reliable signal transmission\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 21.77 inches for correct positioning\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWalker Products Aftermarket Line Details\u003c\/h2\u003e\u003cp\u003eThe Walker Products Aftermarket line focuses on providing precise emission control components tailored to specific vehicle applications. This oxygen sensor 350-34444 is part of that line, offering a direct replacement sensor engineered to meet OEM specifications for Toyota Sienna models. The product line emphasizes compatibility and durability to maintain emission standards and engine efficiency.\u003c\/p\u003e\u003ch2\u003eProduct Description and Technical Specifications\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel mixture adjustments and reducing emissions. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring accurate data transmission. The radiused polygon male connector provides a secure and precise fit, minimizing connection issues. With an 18.23-inch wiring harness and an overall length of 21.77 inches, this sensor is designed for straightforward installation in the exhaust system of Toyota Sienna vehicles. The threaded mounting type with an 18.0 mm diameter ensures a tight and reliable fit.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for faulty or failing oxygen sensors in Toyota Sienna\u003c\/li\u003e\n\u003cli\u003eHelps resolve engine performance issues related to incorrect air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eReduces emissions by providing accurate exhaust gas readings\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by enabling proper engine management\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker oxygen sensor 350-34444, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector shape and gender match the vehicle’s harness for a secure connection. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. Verify sensor wiring and routing to prevent contact with hot exhaust components.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM standards for fit, form, and function. The 350-34444 sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. Warranty details are provided by Walker and typically cover defects in materials and workmanship under normal use conditions.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43538270650549,"sku":"DKHD-350-34444","price":72.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034444_Fro.jpg?v=1774892084","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34444-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}