{"product_id":"bosch-13557-oxygen-sensor","title":"Bosch 13557 Oxygen Sensor - Upstream","description":"\u003ch2\u003eReliable Oxygen Sensor for Subaru Legacy and Outback\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 13557 is designed specifically for Subaru Legacy and Outback models. This heated, wide-band oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Subaru Legacy and Outback vehicles\u003c\/li\u003e\n\u003cli\u003eWide-band sensor type for precise air-fuel ratio monitoring\u003c\/li\u003e\n\u003cli\u003e12.7-inch wiring harness length with connector included\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter\u003c\/li\u003e\n\u003cli\u003e4-wire configuration with blade terminal type and male connectors\u003c\/li\u003e\n\u003cli\u003eDurable metal housing with steel finish\u003c\/li\u003e\n\u003cli\u003eCompatible with Bosch Validated Oxygen Sensor product line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Bosch Validated Oxygen Sensor Line\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor line offers standard replacement sensors that meet OEM specifications for fit and function. This product line focuses on delivering reliable emissions control components that integrate seamlessly with vehicle systems. The 13557 sensor is part of this line, providing a direct-fit solution for Subaru Legacy and Outback models requiring a heated, wide-band oxygen sensor.\u003c\/p\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor features a 4-wire design with a 12.7-inch wiring harness and a square-shaped male connector, ensuring secure electrical connections. The sensor is threaded with an 18 mm diameter and a 22 mm hex size for installation using standard tools. Its metal housing and steel finish provide durability under high-temperature exhaust conditions. The overall length from sealing surface to connector end is approximately 16.1 inches, allowing proper fitment in the exhaust system. The sensor does not include a mounting bracket but is designed for threaded mounting.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate oxygen sensing for improved fuel efficiency\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light codes related to oxygen sensors\u003c\/li\u003e\n\u003cli\u003eSupports proper emissions control to meet regulatory standards\u003c\/li\u003e\n\u003cli\u003eReduces rough idling and engine performance issues caused by faulty sensors\u003c\/li\u003e\n\u003cli\u003ePrevents increased exhaust emissions due to sensor failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before installation to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s factory setup. Avoid damaging the sensor’s wiring during installation. Thread the sensor carefully to prevent cross-threading. No mounting bracket is included, so use the existing exhaust system mounting points.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 13557 is manufactured to meet OEM standards for fit, form, and function. Bosch provides quality assurance through rigorous testing to ensure reliable operation in Subaru Legacy and Outback vehicles. Warranty coverage details should be confirmed with the original Bosch documentation or authorized distributors.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520459665589,"sku":"BBHK-13557","price":337.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_13557_Fro.jpg?v=1775059326","url":"https:\/\/www.partcatalog.com\/products\/bosch-13557-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}