Bosch 15406 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Honda Civic Emission Control

The Bosch Validated Oxygen Sensor 15406 is designed specifically for Honda Civic models, ensuring precise air-fuel mixture readings to optimize engine performance and reduce emissions. This narrow-band heated oxygen sensor offers a direct fit with a 20.6-inch wiring harness and a threaded mounting type for secure installation.

• Specific fit for Honda Civic vehicles
• Narrow-band heated oxygen sensor for accurate emissions control
• 20.6-inch wiring harness with 4 wires and blade terminals
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish
• Female rectangular connector with 4 terminals
• Overall length of 24 inches for proper placement
• Standard replacement grade type

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable and precise emission control components that meet OEM specifications. This line ensures compatibility and performance for specific vehicle applications, such as the Honda Civic, providing a dependable solution for maintaining factory-level emissions standards.

Detailed Product Description

The Bosch 15406 oxygen sensor is a narrow-band heated sensor designed to monitor the oxygen content in the exhaust gases of Honda Civic engines. Its heated element allows for faster sensor activation and improved accuracy under various operating conditions. The sensor features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size, facilitating straightforward installation. The wiring harness includes four wires with blade terminals and a female rectangular connector, ensuring secure electrical connections. Constructed with a metal housing and steel finish, this sensor offers durability and resistance to harsh engine environments. The overall length of 24 inches and a wiring harness length of 20.6 inches provide adequate reach for proper sensor placement.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for optimal engine performance
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing precise emissions data
• Reduces harmful exhaust emissions to meet environmental standards
• Prevents engine hesitation and rough idling caused by faulty sensors

Installation Notes and Tips

When installing the Bosch 15406 oxygen sensor on a Honda Civic, ensure the threaded mounting is properly tightened using a 22 mm hex socket. Verify the wiring harness connections match the vehicle’s female rectangular connector to avoid electrical issues. The sensor’s heated feature requires a secure connection to the vehicle’s power supply for optimal operation. Avoid damaging the wiring harness during installation and confirm the sensor is positioned correctly in the exhaust system for accurate readings.

Quality Assurance and Warranty

As part of the Bosch Validated Oxygen Sensor line, part number 15406 undergoes rigorous testing to meet OEM standards for fit, form, and function. Bosch provides a standard replacement grade sensor designed for reliable performance and durability. Warranty details should be confirmed with the point of purchase or Bosch directly, as coverage may vary.