Bosch 16443 Oxygen Sensor - Downstream

Overview of Bosch Actual OE Oxygen Sensor 16443

The Bosch Actual OE Oxygen Sensor 16443 is designed specifically for Porsche Cayenne models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor features a threaded mounting type and a durable metal housing for reliable operation.

• Specific fit for Porsche Cayenne
• Heated narrow-band oxygen sensor
• Threaded mounting with 18 mm thread diameter
• 27.2-inch wiring harness length with 4-pin female connector
• Standard replacement grade with metal housing and steel finish

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and performance consistency for emission control systems. The 16443 part number belongs to this line, offering a standard replacement sensor with a heated element to maintain accurate readings under various operating conditions.

Detailed Product Description and Specifications

This oxygen sensor features a narrow-band sensor type with heating capability, which helps the sensor reach operating temperature quickly for accurate air-fuel mixture readings. The sensor includes a 27.2-inch wiring harness with four wires and a 4-pin female oblong connector, facilitating a secure and specific fitment. The sensor’s overall length is 30.5 inches from the sealing surface to the end of the connector, and it uses a 22 mm hex size for installation. The metal housing and steel finish provide durability and resistance to harsh engine environments.

Common Applications and Issues Addressed

• Maintains proper air-fuel ratio for Porsche Cayenne engines
• Helps reduce harmful emissions by accurate oxygen level detection
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers caused by sensor failure
• Supports efficient fuel consumption and engine management

Installation Notes and Tips

Installation requires a threaded mounting with an 18 mm thread diameter. Use a 22 mm oxygen sensor socket or wrench for removal and installation. Ensure the wiring harness is properly connected to the female 4-pin oblong connector to avoid electrical issues. No mounting bracket is included, so verify the sensor’s position matches the original equipment location on the Porsche Cayenne.

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 16443 is manufactured to meet OEM standards for fit, form, and function. It is a standard replacement grade sensor designed for reliable performance in emission control systems. Bosch products typically come with a limited warranty covering defects in materials and workmanship; please refer to Bosch’s official warranty policy for specific terms.