Bosch 15031 Oxygen Sensor - Downstream or Downstream Front

Overview of Bosch Engineered Oxygen Sensor 15031

The Bosch Engineered Oxygen Sensor 15031 is designed specifically for Subaru Legacy and Outback models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Specific fit for Subaru Legacy and Outback
• Heated narrow-band oxygen sensor for precise readings
• 24.8-inch wiring harness length with 4 wires and blade terminals
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish and male rectangular connector

Detailed Product Features and Specifications

The Bosch Engineered Oxygen Sensor 15031 features a 24.8-inch wiring harness and a total length of 28.5 inches, providing ample reach for installation in compatible Subaru vehicles. It includes a 4-wire configuration with blade-type terminals and a male rectangular connector, ensuring secure and reliable electrical connections. The sensor is a narrow-band heated type, which helps the engine control unit (ECU) maintain optimal air-fuel mixture by providing fast and accurate oxygen level feedback. The sensor mounts via a threaded 18 mm diameter fitting and uses a 22 mm hex size for installation tools. Constructed with a metal housing and steel finish, this sensor is built to withstand harsh engine environments.

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 durability, providing sensors engineered to meet OEM specifications. The 15031 sensor exemplifies this approach by offering a direct fit solution for Subaru Legacy and Outback models, ensuring reliable performance and emission compliance.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Subaru Legacy and Outback
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate exhaust gas readings
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by enabling proper engine management

Installation Notes and Tips

• Ensure vehicle compatibility with Subaru Legacy or Outback models before installation
• Use a 22 mm socket or wrench for sensor removal and installation
• Handle the sensor carefully to avoid damaging the wiring harness or connector
• Verify the threaded mounting type and torque specifications per vehicle service manual
• Check for proper connector engagement to avoid electrical issues

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15031 is manufactured to meet strict quality standards, ensuring reliable operation and durability. Bosch provides a standard replacement grade sensor designed to match OEM performance. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period. Refer to Bosch or vehicle service documentation for exact warranty terms.