Bosch 15409 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Honda Accord

The Bosch Engineered Oxygen Sensor 15409 is designed specifically for Honda Accord models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to help maintain efficient combustion.

• Wiring harness length: 40.8 inches for flexible installation
• Blade terminal type with 4 female terminals for secure electrical connection
• Specific fitment for Honda Accord vehicles
• Standard replacement grade for dependable performance
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Heated narrow-band sensor for faster response times
• Durable metal housing with steel finish
• Connector shape: rectangular female connector included
• Overall length: 44.5 inches for proper reach and fit

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise emission control components engineered to meet or exceed OEM specifications. The 15409 oxygen sensor is part of this line, offering a reliable and direct replacement solution tailored for Honda Accord models. Bosch’s attention to detail in wiring harness design and sensor heating elements ensures consistent sensor operation and durability.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate air-fuel ratio data to the engine control unit. The 4-wire configuration includes a heated element and signal wires, improving sensor responsiveness and longevity. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation using standard tools. The sensor’s metal housing and steel finish provide resistance to harsh engine conditions, while the 40.8-inch wiring harness length and rectangular female connector ensure compatibility with the Honda Accord’s factory wiring system.

Common Applications and Problem Solving

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps reduce harmful emissions by maintaining proper air-fuel mixture
• Resolves engine performance issues related to faulty oxygen sensors
• Prevents check engine light triggers caused by sensor failure
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15409 on a Honda Accord, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness routing matches the factory setup to prevent damage or disconnection. Do not overtighten the sensor; torque to manufacturer specifications to avoid thread damage. Confirm the connector is fully seated and locked to maintain a secure electrical connection.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This sensor is a standard replacement part designed to meet OEM specifications for the Honda Accord. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.