{"product_id":"walker-350-64042-oxygen-sensor","title":"Walker 350-64042 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Walker 350-64042 Oxygen Sensor for Subaru Legacy and Outback\u003c\/h2\u003e\u003cp\u003eThe Walker 350-64042 oxygen sensor is designed specifically for Subaru Legacy and Outback models, providing precise emission control monitoring. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor with 4-wire configuration\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Subaru Legacy and Outback vehicles\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18.0 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e17.24 inches wiring harness length and 20.79 inches overall length\u003c\/li\u003e\n\u003cli\u003eRadiused polygon female connector for secure connection\u003c\/li\u003e\n\u003cli\u003e20 gauge wire for reliable signal transmission\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Walker oxygen sensor (part number 350-64042) features a heated sensor type that allows for faster warm-up times and improved sensor response. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring stable and accurate readings. The wiring harness length of 17.24 inches and overall length of 20.79 inches provide sufficient reach for installation in the exhaust system of Subaru Legacy and Outback models. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with factory mounting points. The radiused polygon female connector ensures a secure and precise fit, reducing the risk of connection issues during operation.\u003c\/p\u003e\u003ch2\u003eWalker Products Aftermarket Line Information\u003c\/h2\u003e\u003cp\u003eThe Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed OEM specifications. This oxygen sensor is part of that line, providing a reliable and direct-fit solution for Subaru vehicles. Walker Products Aftermarket parts are designed to maintain vehicle emissions performance and support compliance with environmental regulations.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for proper air-fuel mixture control\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light codes related to oxygen sensor failure\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing correct sensor data to the engine control unit\u003c\/li\u003e\n\u003cli\u003eReduces harmful emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003eEliminates rough idling or engine hesitation caused by faulty sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Walker 350-64042 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Confirm the radiused polygon female connector matches the vehicle’s harness for a secure fit. Thread the sensor carefully into the exhaust port to prevent cross-threading. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker Products Aftermarket oxygen sensors undergo rigorous testing to meet industry standards for durability and performance. The 350-64042 part is manufactured to provide consistent sensor output and reliable heater function. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to ensure product reliability.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":43541186379957,"sku":"DKHD-350-64042","price":117.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35064042_Fro.jpg?v=1774892217","url":"https:\/\/www.partcatalog.com\/products\/walker-350-64042-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}