{"product_id":"bosch-15621-oxygen-sensor","title":"Bosch 15621 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOverview of Bosch Validated Oxygen Sensor 15621 for Toyota Prius\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor part number 15621 is designed specifically for Toyota Prius models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Toyota Prius vehicles\u003c\/li\u003e\n\u003cli\u003eSpecific fit with a 19.9-inch wiring harness length\u003c\/li\u003e\n\u003cli\u003eHeated narrow-band oxygen sensor for precise readings\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter and 22 mm hex size\u003c\/li\u003e\n\u003cli\u003eIncludes a 4-wire harness with male blade terminals and rectangular male connector\u003c\/li\u003e\n\u003cli\u003eConstructed with durable metal housing in steel finish\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade for reliable emission control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 15621 is engineered as a specific fit for Toyota Prius models, ensuring seamless integration with the vehicle's emission control system. This narrow-band heated oxygen sensor features a 4-wire configuration with male blade terminals and a rectangular male connector, providing secure and reliable electrical connections. The sensor's wiring harness measures 19.9 inches, with an overall length of 23.6 inches, allowing for proper installation without excess slack.\u003c\/p\u003e\u003cp\u003eIts threaded mounting type with an 18 mm thread diameter and 22 mm hex size facilitates straightforward installation using standard tools. The sensor housing is made of metal with a steel finish, offering durability and resistance to harsh under-hood conditions. As a standard replacement grade part, it meets OEM specifications for performance and longevity.\u003c\/p\u003e\u003ch2\u003eAbout the Bosch Validated Oxygen Sensor Product Line\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor line is designed to provide precise and reliable emission control components that meet strict validation standards. This product line focuses on delivering sensors that are tested for fit, form, and function to ensure compatibility and performance in specific vehicle applications. The 15621 sensor exemplifies this approach by offering a direct fit solution for Toyota Prius models, supporting accurate air-fuel mixture monitoring and emissions regulation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper oxygen sensing for efficient fuel combustion\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves vehicle emissions compliance and reduces exhaust pollutants\u003c\/li\u003e\n\u003cli\u003eAddresses rough idling or poor fuel economy caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003eSupports optimal catalytic converter function by providing accurate data\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with Toyota Prius models before installation\u003c\/li\u003e\n\u003cli\u003eUse a 22 mm wrench or socket for sensor removal and installation\u003c\/li\u003e\n\u003cli\u003eHandle the sensor carefully to avoid damaging the wiring harness or connector\u003c\/li\u003e\n\u003cli\u003eVerify the threaded mounting type and torque specifications per vehicle service manual\u003c\/li\u003e\n\u003cli\u003eCheck for proper connector engagement to prevent electrical issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 15621 is manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to Bosch or authorized distributor documentation for exact warranty terms.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520547057845,"sku":"BBHK-15621","price":89.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_15621_Fro.jpg?v=1775059433","url":"https:\/\/www.partcatalog.com\/products\/bosch-15621-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}