Bosch 15027 Oxygen Sensor - Downstream

Overview of Bosch Validated Oxygen Sensor 15027

The Bosch Validated Oxygen Sensor 15027 is designed specifically for Acura and Honda vehicles, including the Civic and CSX models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Specific fit for Acura and Honda Civic, CSX models
• Narrow-band heated oxygen sensor type for precise readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 21-inch wiring harness with 4-pin rectangular male connector
• Durable metal housing with steel finish for long-lasting use
• Standard replacement grade with 24.4-inch overall length

Detailed Product Features and Specifications

This Bosch oxygen sensor (part number 15027) features a narrow-band heated sensor type, which provides reliable and consistent oxygen level measurements in the exhaust system. The sensor is equipped with a 4-wire configuration and a 4-terminal female pin setup, connected via a 21-inch wiring harness with a rectangular male connector. The threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for secure installation in compatible exhaust manifolds or pipes. The sensor’s metal housing and steel finish contribute to its durability under high-temperature conditions.

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict quality and performance standards. These sensors are tested and validated to ensure compatibility and reliability for specific vehicle applications. The 15027 sensor is part of this line, providing a standard replacement option that maintains factory-level emission control for Acura and Honda vehicles.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved engine efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports compliance with emission regulations for Acura Civic and Honda CSX

Installation Notes and Tips

When installing the Bosch 15027 oxygen sensor, ensure the vehicle is compatible with this specific fitment for Acura Civic and Honda CSX models. Use the 22 mm hex size for proper tightening and avoid over-torquing to prevent damage. The 21-inch wiring harness allows for flexible routing, but verify connector orientation matches the vehicle’s harness. Threaded mounting requires clean threads for a secure fit. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 15027 is manufactured with high-quality metal housing and tested to meet OEM standards. It includes a heated element to ensure quick sensor response and durability. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.