{"product_id":"denso-234-4512-oxygen-sensor","title":"Denso 234-4512 Oxygen Sensor - Downstream Rear or Downstream Right","description":"\u003ch2\u003eOverview of the Denso OE Style Oxygen Sensor 234-4512\u003c\/h2\u003e\u003cp\u003eThe Denso OE Style Oxygen Sensor 234-4512 is designed specifically for Toyota Sienna models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a 19.69-inch wiring harness and a threaded mounting type for secure installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for accurate emissions readings\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Toyota Sienna vehicles\u003c\/li\u003e\n\u003cli\u003e19.69-inch wiring harness length for optimal routing\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 0.708-inch thread diameter\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration with female connector\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Denso oxygen sensor, part number 234-4512, belongs to the OE Style product line, which focuses on delivering original equipment quality and fitment. The OE Style line ensures that each sensor matches the exact specifications of the original part, maintaining factory performance standards. The heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions shortly after engine start.\u003c\/p\u003e\u003cp\u003eThe sensor’s 19.69-inch wiring harness length provides sufficient reach for proper installation in the Toyota Sienna’s exhaust system. Its four-wire design includes a female connector, facilitating a secure and reliable electrical connection. The threaded mounting type with a 0.708-inch diameter ensures compatibility with the vehicle’s exhaust manifold or pipe.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMonitors oxygen levels in exhaust gases for optimal air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eHelps reduce harmful emissions by providing accurate feedback to the engine control unit\u003c\/li\u003e\n\u003cli\u003eAddresses issues such as poor fuel economy caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003eResolves engine performance problems like rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Denso 234-4512 oxygen sensor on a Toyota Sienna, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the sensor’s threaded diameter matches the mounting port and securely tighten to manufacturer torque specifications. Confirm the female connector is properly seated to maintain electrical integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso’s OE Style oxygen sensors are manufactured to meet or exceed original equipment standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports the longevity of the Toyota Sienna’s engine management system.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43977032499381,"sku":"BBNF-234-4512","price":77.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344512_Fro.jpg?v=1775007356","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4512-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}