{"product_id":"bosch-15645-oxygen-sensor","title":"Bosch 15645 Oxygen Sensor - Downstream","description":"\u003ch2\u003eOverview of Bosch Validated Oxygen Sensor 15645 for Ford Focus\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 15645 is designed specifically for Ford Focus models, providing precise emission control and reliable performance. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecific fit for Ford Focus vehicles\u003c\/li\u003e\n\u003cli\u003eHeated narrow-band oxygen sensor type\u003c\/li\u003e\n\u003cli\u003eThreaded mounting with 18 mm thread diameter and 22 mm hex size\u003c\/li\u003e\n\u003cli\u003eIncludes 13.3-inch wiring harness with 4 wires and blade terminals\u003c\/li\u003e\n\u003cli\u003eDurable metal housing with steel finish\u003c\/li\u003e\n\u003cli\u003eConnector: male, rectangular shape with 4 terminals\u003c\/li\u003e\n\u003cli\u003eOverall length of 16.7 inches for proper installation\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade type\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Bosch Validated Oxygen Sensor Product Line\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor line is engineered to meet strict OEM standards, ensuring compatibility and performance for specific vehicle applications. This product line focuses on delivering reliable sensor readings and durability, which are critical for emission control systems. The 15645 part number is part of this line, tailored for the Ford Focus to maintain factory-level sensor accuracy and fitment.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate monitoring of exhaust gases. The sensor’s metal housing and steel finish provide resistance to harsh engine conditions. It mounts via a threaded connection with an 18 mm diameter and 22 mm hex size, ensuring secure installation. The included wiring harness measures 13.3 inches and has four wires with blade terminals, connecting through a male rectangular connector with four terminals. The overall length of 16.7 inches accommodates proper placement within the exhaust system. This sensor is a standard replacement part, designed specifically for Ford Focus models, ensuring precise fit and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by Bosch Oxygen Sensor 15645\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncorrect air-fuel mixture readings causing poor fuel economy\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor signals\u003c\/li\u003e\n\u003cli\u003eIncreased emissions due to sensor malfunction\u003c\/li\u003e\n\u003cli\u003eEngine performance issues such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to sensor accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with Ford Focus models before installation\u003c\/li\u003e\n\u003cli\u003eUse a 22 mm oxygen sensor socket for removal and installation\u003c\/li\u003e\n\u003cli\u003eDo not overtighten; torque to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003eInspect wiring harness and connector for damage before connecting\u003c\/li\u003e\n\u003cli\u003eAllow the engine to cool before replacing the sensor to avoid burns\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Bosch Validated Oxygen Sensor 15645 is manufactured to meet OEM quality standards, providing reliable performance and durability. Bosch products typically come with a limited warranty covering defects in materials and workmanship. Please refer to Bosch’s official warranty documentation for specific terms related to this oxygen sensor.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520550400181,"sku":"BBHK-15645","price":87.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_15645_Fro.jpg?v=1775059436","url":"https:\/\/www.partcatalog.com\/products\/bosch-15645-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}