Bosch 13445 Oxygen Sensor - Downstream or Upstream

Overview of Bosch Actual OE Oxygen Sensor 13445

The Bosch Actual OE Oxygen Sensor 13445 is designed specifically for Subaru Impreza and Legacy models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Compatible with Subaru Impreza and Legacy vehicles
• Specific fit with threaded mounting type for secure installation
• Heated narrow-band sensor for precise air-fuel ratio measurement
• Includes a 14.8-inch wiring harness with a square female connector
• Constructed with durable metal housing and steel finish
• Standard replacement grade with 3 wires and 4 female terminals
• Overall length of 18.5 inches and 22 mm hex size for installation

Detailed Features and Specifications

The Bosch Actual OE Oxygen Sensor 13445 features a narrow-band heated sensor type, which is essential for maintaining proper engine combustion and reducing emissions. The sensor comes with a 14.8-inch wiring harness and a 17.3-inch length from sealing surface to connector end, providing sufficient reach for installation in Subaru Impreza and Legacy exhaust systems. Its threaded mounting type with an 18 mm thread diameter ensures a secure fit. The sensor’s metal housing and steel finish contribute to its durability under high-temperature conditions. The connector is female with a square shape, accommodating 4 female terminals and 3 wires, designed for a specific fit rather than universal application.

About Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing reliable performance and compatibility with specific vehicle models. This product line focuses on delivering precise sensor readings to support emission control systems, ensuring compliance with environmental standards. The 13445 part number is part of this line, offering a standard replacement option that matches the fit and function of the original sensor installed in Subaru Impreza and Legacy vehicles.

Common Applications and Problem Solving

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves check engine light issues related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining proper air-fuel mixture
• Prevents engine performance problems caused by faulty sensor readings
• Supports smooth engine idling and acceleration in Subaru Impreza and Legacy

Installation Notes and Tips

Installation of the Bosch Actual OE Oxygen Sensor 13445 requires a threaded mounting hole with an 18 mm diameter. Use a 22 mm hex socket for removal and installation. Ensure the wiring harness is properly connected to the female square connector with 4 terminals. Avoid damaging the sensor wiring during installation and verify the sensor orientation matches the original part. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. The Actual OE Oxygen Sensor 13445 is a standard replacement part designed to match OEM specifications for Subaru Impreza and Legacy models. While specific warranty details are not provided here, Bosch typically offers coverage against manufacturing defects. Always consult product documentation or the vehicle manufacturer for warranty information.