Bosch 15645 Oxygen Sensor - Downstream

Overview of Bosch Validated Oxygen Sensor 15645 for Ford Focus

The 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.

• Specific fit for Ford Focus vehicles
• Heated narrow-band oxygen sensor type
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Includes 13.3-inch wiring harness with 4 wires and blade terminals
• Durable metal housing with steel finish
• Connector: male, rectangular shape with 4 terminals
• Overall length of 16.7 inches for proper installation
• Standard replacement grade type

About the Bosch Validated Oxygen Sensor Product Line

The 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.

Detailed Product Description

This 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.

Common Issues Addressed by Bosch Oxygen Sensor 15645

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

Installation Notes and Tips

• Ensure vehicle compatibility with Ford Focus models before installation
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten; torque to manufacturer specifications
• Inspect wiring harness and connector for damage before connecting
• Allow the engine to cool before replacing the sensor to avoid burns

Quality Assurance and Warranty

The 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.