Bosch 13453 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for BMW 740i and 740iL

The Bosch Actual OE Oxygen Sensor part number 13453 is designed specifically for BMW 740i and 740iL models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Specific fit for BMW 740i and 740iL models
• Narrow-band heated oxygen sensor type for precise readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• 4-wire configuration with female pin terminals and round connector shape
• Wiring harness length of 8.9 inches and overall length of 12.6 inches
• Durable metal housing with steel finish
• Standard replacement grade for reliable performance
• Includes wiring harness for direct installation

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and performance consistency for vehicles like the BMW 740i and 740iL. The sensors in this line feature precise construction and materials designed to maintain emission control standards and engine efficiency.

Detailed Product Description

The Bosch 13453 oxygen sensor is a narrow-band heated sensor that uses a threaded mounting type with an 18 mm thread diameter, making it compatible with specific BMW 740i and 740iL models. It features a 4-wire design with female pin terminals and a round connector shape, facilitating a secure and reliable electrical connection. The wiring harness length is 8.9 inches, with an overall length of 12.6 inches, including 11.4 inches from the sealing surface to the end of the connector. The sensor housing is made of metal with a steel finish, providing durability and resistance to harsh engine conditions. This sensor is a standard replacement grade part, designed to restore proper oxygen sensing and emission control functionality.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 740i and 740iL
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by ensuring proper catalytic converter operation
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining correct sensor feedback

Installation Notes and Tips

This oxygen sensor features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size, compatible with standard oxygen sensor sockets. The 4-wire heated design requires connection to the vehicle’s wiring harness using the included wiring harness with female pin terminals. Ensure the sensor is installed in the correct orientation and torque specifications are followed to avoid damage. No mounting bracket is included, so use the existing mounting location on the vehicle.

Quality Assurance and Warranty

Bosch oxygen sensors, including the Actual OE Oxygen Sensor line, are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability for BMW 740i and 740iL vehicles. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors to cover manufacturing defects.