{"product_id":"walker-350-34831-oxygen-sensor","title":"Walker 350-34831 Oxygen Sensor","description":"\u003ch2\u003eWalker 350-34831 Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eWalker Products 350-34831 is an OE replacement oxygen sensor for specific Toyota and Lexus applications. It is engineered for the exact application and sensor position, helping the ECU receive the feedback it expects from the exhaust system.\u003c\/p\u003e\u003cp\u003eWalker Products Aftermarket focuses on engine management and oxygen\/air-fuel sensors built for direct-fit replacement needs across a wide range of vehicles, including Toyota Camry, Tacoma, Highlander, Avalon, and Lexus ES350 applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE replacement oxygen sensor for downstream locations\u003c\/li\u003e\n\u003cli\u003eApplication-specific fitment and connector positioning\u003c\/li\u003e\n\u003cli\u003eSupports ECU diagnostic feedback on equipped vehicles\u003c\/li\u003e\n\u003cli\u003eDesigned for select Toyota and Lexus models\u003c\/li\u003e\n\u003cli\u003eWalker Products part number 350-34831\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Walker 350-34831 oxygen sensor is built for downstream use on confirmed Toyota and Lexus fitments. This sensor is matched to the listed vehicle, model year, and position so it can deliver the diagnostic signal the engine control unit relies on for emissions and fuel-control monitoring. For shoppers searching for a downstream oxygen sensor for Toyota Camry, Lexus ES350 oxygen sensor replacement, or a Walker 350-34831 direct-fit sensor, this part is listed for the exact applications shown below.\u003c\/p\u003e\u003cp\u003eWalker Products has supplied engine management components since 1946 and manufactures sensors to OE-style application requirements. The 350-34831 is intended for vehicles where the original sensor has triggered fault codes, poor running conditions, higher fuel use, increased emissions, or a malfunction indicator light.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003eFault codes stored in the ECU for downstream sensor circuits\u003c\/li\u003e\n\u003cli\u003eRough engine operation tied to exhaust feedback errors\u003c\/li\u003e\n\u003cli\u003eIncreased fuel consumption from inaccurate sensor readings\u003c\/li\u003e\n\u003cli\u003eElevated exhaust emissions from a failing sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify the exact year, make, model, and sensor position before ordering.\u003c\/li\u003e\n\u003cli\u003eInspect the sensor wiring harness and connector for heat damage or corrosion before installation.\u003c\/li\u003e\n\u003cli\u003eConfirm the downstream location shown in the fitment list, including left, right, front, or rear placement where specified.\u003c\/li\u003e\n\u003cli\u003eFor 2016 Toyota Tacoma applications, review the B1S2 and production-date notes carefully.\u003c\/li\u003e\n\u003cli\u003eFor 2019-2021 Lexus ES350 applications, confirm whether the vehicle is Japan-built or USA-built.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker Products manufactures engine management sensors under ISO 9001\/TS 16949 quality systems, with application-specific development for OE-style replacement use. Part number 350-34831 is listed for confirmed downstream oxygen sensor applications on select Toyota and Lexus vehicles.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":51870217109685,"sku":"DKHD-350-34831","price":53.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_35034831_Fro.jpg?v=1774892158","url":"https:\/\/www.partcatalog.com\/products\/walker-350-34831-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}