Bosch 13431 Oxygen Sensor - Downstream

Overview of Bosch Actual OE Oxygen Sensor 13431

The Bosch Actual OE Oxygen Sensor 13431 is designed specifically for Mercedes-Benz S320 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.

• Compatible with Mercedes-Benz S320 vehicles
• Part number 13431 for exact fitment
• Narrow-band heated oxygen sensor type
• Threaded mounting with 18 mm thread diameter
• 14.4-inch wiring harness length with 4 wires and blade terminals
• Standard replacement grade with steel finish
• Connector: round shape, male gender, 4 terminals
• Overall length of 18.1 inches for proper installation
• Includes wiring harness for direct replacement

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 solution for emission control sensors. This product line focuses on delivering precise sensor readings and durability, which are critical for maintaining factory-level engine management and emissions compliance. The 13431 sensor is part of this line, ensuring compatibility and performance for Mercedes-Benz S320 applications.

Detailed Product Description

This Bosch oxygen sensor 13431 is a narrow-band heated sensor designed to monitor oxygen levels in the exhaust gases of Mercedes-Benz S320 vehicles. The heated element allows the sensor to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor features a threaded mounting type with an 18 mm diameter and a 22 mm hex size for easy installation. Its metal housing and steel finish provide durability under high-temperature conditions. The wiring harness is 14.4 inches long and includes four wires with blade terminals, connected via a round, male connector with four terminals, ensuring a secure and reliable electrical connection.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring correct catalytic converter operation
• Prevents check engine light triggers related to oxygen sensor faults
• Supports compliance with emission regulations for Mercedes-Benz S320

Installation Notes and Tips

• Ensure vehicle compatibility with Mercedes-Benz S320 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 installation
• Replace sensor when engine performance or emissions issues are detected

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 13431 is manufactured to meet strict quality standards, ensuring reliable performance and durability. This sensor is a standard replacement grade part designed to match original equipment specifications. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.