Bosch 13940 Oxygen Sensor - Upstream

Overview of Bosch Validated Oxygen Sensor 13940

The Bosch Validated Oxygen Sensor 13940 is designed specifically for Acura and Honda vehicles, including the Civic and CSX models. This wide-band oxygen sensor features a heated design and a 4-wire configuration to ensure accurate emissions control and optimal engine performance.

• Heated wide-band oxygen sensor for precise air-fuel ratio monitoring
• Specific fit for Acura and Honda Civic, CSX models
• 4-wire design with pin terminal type and female connectors
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 13.9-inch wiring harness with a rectangular female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for reliable emissions control

Detailed Product Description

The Bosch Validated Oxygen Sensor 13940 is engineered to meet the exact specifications of Acura and Honda vehicles such as the Civic and CSX. This sensor is a heated, wide-band oxygen sensor that provides accurate and responsive feedback to the engine control unit (ECU) for efficient fuel combustion and reduced emissions. The sensor features a 4-wire design with pin-type terminals and female connectors, ensuring secure electrical connections. Its threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for straightforward installation. The sensor comes with a 13.9-inch wiring harness and a rectangular female connector, facilitating compatibility with the vehicle’s existing wiring system. Constructed with a durable metal housing finished in steel, this sensor is built to withstand harsh engine conditions.

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line is designed to provide reliable and precise emissions control components that meet OEM standards. This line focuses on delivering sensors that are tested and validated for specific vehicle applications, ensuring proper fitment and performance. The 13940 sensor is part of this line, offering a standard replacement option that maintains the integrity of the vehicle’s emissions system.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

• Ensure the vehicle is compatible: Acura and Honda Civic, CSX models
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten; torque to manufacturer specifications
• Verify wiring harness connections match the rectangular female connector
• Inspect the sensor thread and mounting area for debris before installation

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 13940 is manufactured to meet strict quality standards with durable materials and precise engineering. While specific warranty details are not provided here, Bosch typically offers coverage on their oxygen sensors to ensure reliability and customer satisfaction. Always refer to Bosch’s official documentation or authorized distributors for warranty information.