Bosch 15916 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Mazda 2 and 3 Vehicles

The Bosch Engineered Oxygen Sensor 15916 is designed specifically for Mazda 2 and Mazda 3 models, providing accurate air-fuel mixture readings to optimize engine performance and reduce emissions. This narrow-band heated oxygen sensor ensures precise monitoring of exhaust gases for efficient combustion control.

• Specific fit for Mazda 2 and Mazda 3 models
• Heated narrow-band oxygen sensor for faster response
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 29.8-inch wiring harness with 4-pin rectangular male connector
• Durable metal housing with steel finish for long-lasting use
• Standard replacement grade with 4 female terminals
• Overall length of 33.5 inches for proper installation

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise emission control components tailored to specific vehicle applications. This product line emphasizes compatibility and reliability, ensuring that each sensor meets OEM specifications for fit and function. The 15916 oxygen sensor is part of this line, engineered to provide consistent performance and durability for Mazda vehicles.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate exhaust gas measurement. The sensor is threaded with an 18 mm diameter and includes a 22 mm hex size for easy installation and removal. The wiring harness length is 29.8 inches, equipped with a 4-pin rectangular male connector and female terminals, ensuring secure electrical connections. The sensor housing is made of metal with a steel finish, providing resistance to heat and corrosion. This standard replacement grade sensor weighs approximately 0.275 pounds and has an overall length of 33.5 inches, including the wiring harness.

Common Applications and Issues Addressed

• Restores proper air-fuel ratio readings for Mazda 2 and Mazda 3 engines
• Helps resolve rough idling and engine hesitation caused by faulty sensors
• Reduces increased emissions and failed emissions tests
• Improves fuel efficiency by providing accurate oxygen level data
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15916, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s threaded size matches the vehicle’s exhaust port (18 mm). Connect the 4-pin rectangular male connector securely to the vehicle’s wiring harness. Avoid twisting or stretching the wiring harness during installation to prevent damage. No additional mounting brackets or accessories are included with this sensor.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards and OEM specifications. This sensor is a standard replacement part designed for durability and reliable performance. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components. Refer to Bosch or the vehicle manufacturer for warranty information related to this part number 15916.