Bosch 13427 Oxygen Sensor - Upstream

Overview of Bosch Actual OE Oxygen Sensor 13427

The Bosch Actual OE Oxygen Sensor 13427 is designed specifically for select Mercedes-Benz models including the 300SE, C36 AMG, C280, and S320. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases precisely.

• Specific fit for Mercedes-Benz 300SE, C36 AMG, C280, and S320
• Heated narrow-band oxygen sensor for reliable emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 23.3-inch wiring harness with a round, male connector
• Standard replacement grade with metal housing and steel finish
• Four-wire design with female terminals for secure connection
• Overall length of 27 inches and 7.9-inch sealing surface to connector length

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line focuses on delivering direct replacement sensors that meet original equipment specifications. This ensures compatibility and performance consistency for vehicles requiring precise emission control components. The 13427 sensor maintains Bosch's commitment to quality and fitment accuracy within this product line.

Detailed Product Description

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings. The sensor’s metal housing and steel finish contribute to durability under high-temperature exhaust conditions. With a threaded mounting type and an 18 mm thread diameter, installation aligns with factory specifications. The included wiring harness measures 23.3 inches and terminates in a round, male connector with four female terminals, ensuring a secure and reliable electrical connection. The sensor’s overall length of 27 inches and 7.9-inch length from sealing surface to connector end accommodate proper fitment in the exhaust system of compatible Mercedes-Benz models.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Mercedes-Benz 300SE, C36 AMG, C280, and S320
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Assists in reducing emissions by providing accurate exhaust gas data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Supports fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

• Ensure the vehicle is compatible with part number 13427 before installation
• Use a 22 mm oxygen sensor socket for removal and installation
• Verify the wiring harness connection is secure and matches the original connector shape and terminal configuration
• Do not overtighten the threaded sensor to avoid damage to the exhaust manifold or sensor threads
• Allow the sensor to reach operating temperature for accurate diagnostics after installation

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 13427 is manufactured to meet original equipment standards, ensuring reliable performance and durability. Bosch provides a standard replacement grade sensor with a metal housing designed for long-term use in demanding exhaust environments. While specific warranty details are not provided here, Bosch typically offers coverage consistent with OEM replacement parts, supporting confidence in product quality.