{"product_id":"bosch-13523-oxygen-sensor","title":"Bosch 13523 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOverview of Bosch Actual OE Oxygen Sensor 13523\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor 13523 is designed specifically for BMW 530i and 540i models. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecific fit for BMW 530i and 540i models\u003c\/li\u003e\n\u003cli\u003eHeated narrow-band oxygen sensor for reliable operation\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 15.2-inch wiring harness with 4-pin female connector\u003c\/li\u003e\n\u003cli\u003eDurable metal housing finished in steel for long-lasting use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Bosch oxygen sensor (part number 13523) features a 4-wire configuration with a female pin terminal and connector, ensuring secure and precise electrical connections. The sensor is heated, which helps it reach operating temperature quickly for accurate readings under various driving conditions. The threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for straightforward installation using standard tools. The overall length of the sensor is 18.9 inches, with a wiring harness length of 15.2 inches and a sealing surface to connector length of 17.7 inches, providing ample reach for proper fitment in the exhaust system.\u003c\/p\u003e\u003ch2\u003eAbout the Bosch Actual OE Oxygen Sensor Product Line\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This product line focuses on delivering reliable emissions control components that maintain vehicle performance and comply with environmental standards. The 13523 sensor is part of this line, ensuring compatibility and quality for BMW 530i and 540i vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores accurate air-fuel ratio readings for improved fuel efficiency\u003c\/li\u003e\n\u003cli\u003eHelps resolve check engine light issues related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eReduces emissions by ensuring proper catalytic converter function\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance problems caused by faulty sensor data\u003c\/li\u003e\n\u003cli\u003eSupports smooth engine idling and acceleration response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Bosch 13523 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness routing to prevent contact with hot or moving parts. The sensor’s threaded design allows for a secure fit without additional mounting brackets. Confirm the connector is fully seated to maintain proper electrical connection.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBosch oxygen sensors are manufactured to meet strict quality standards, using durable metal housings and reliable heating elements. The Actual OE Oxygen Sensor 13523 undergoes rigorous testing to ensure consistent performance and longevity. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period, supporting confidence in this replacement part.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520457568437,"sku":"BBHK-13523","price":97.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_13523_Fro.jpg?v=1775059322","url":"https:\/\/www.partcatalog.com\/products\/bosch-13523-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}