Bosch 13868 Oxygen Sensor - Downstream or Downstream Left

Overview of Bosch Engineered Oxygen Sensor 13868

The Bosch Engineered Oxygen Sensor 13868 is designed specifically for Mazda MPV, Protege, and Protege5 models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Compatible with Mazda MPV, Protege, and Protege5
• Standard replacement narrow-band heated oxygen sensor
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes 23.4-inch wiring harness with 4-pin rectangular male connector
• Durable metal housing finished in steel for long-lasting use

Detailed Product Features and Specifications

The Bosch Engineered Oxygen Sensor 13868 features a 4-wire configuration with a 4-terminal female pin type, designed for specific fitment to Mazda vehicles. The sensor is heated, which helps it reach operating temperature quickly for accurate readings. It has a total length of 26.8 inches, with a wiring harness length of 23.4 inches and a connector length of 25.6 inches from the sealing surface to the end of the connector. The sensor’s threaded mounting type and 18 mm thread size ensure secure installation. The rectangular male connector and female terminal gender provide reliable electrical connections. The sensor’s metal housing and steel finish contribute to its durability under harsh engine conditions.

About the Bosch Engineered Oxygen Sensor Product Line

The Bosch Engineered Oxygen Sensor line focuses on precision and reliability in emission control components. This product line is engineered to meet or exceed OEM specifications, providing a direct fit and function for specific vehicle models. The 13868 sensor is part of this line, offering a standard replacement option that maintains proper engine management and emission standards for Mazda MPV, Protege, and Protege5 vehicles.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers caused by sensor failure
• Supports smooth engine idling and acceleration

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Bosch 13868 sensor into the exhaust manifold or pipe. Use a 22 mm oxygen sensor socket for proper tightening. Ensure the wiring harness is connected securely to the vehicle’s harness using the 4-pin rectangular male connector. Avoid damaging the wiring during installation and verify the sensor is properly seated to prevent exhaust leaks.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 13868 is manufactured with high-quality metal housing and components to withstand engine heat and vibration. It is designed as a standard replacement part to meet OEM standards. Bosch typically offers a limited warranty on their oxygen sensors; please refer to Bosch’s official documentation for specific warranty details.