Bosch 15025 Oxygen Sensor - Downstream or Downstream Rear

Overview of Bosch Engineered Oxygen Sensor 15025

The Bosch Engineered Oxygen Sensor 15025 is a specific-fit, narrow-band heated oxygen sensor designed for select Saab and Subaru models. Engineered to meet standard replacement requirements, this sensor ensures accurate air-fuel mixture readings for optimal engine performance and emissions control.

• Specific fit for Saab 9-2X and Subaru models including B9 Tribeca, Baja, Forester, Impreza, Legacy, Outback, Tribeca, and WRX
• Narrow-band heated oxygen sensor type with 4-wire configuration
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes wiring harness with 20.9-inch length and male rectangular connector
• Durable metal housing finished in steel with a total length of 24.6 inches

Detailed Product Description

The Bosch Engineered Oxygen Sensor 15025 is designed as a direct replacement part for emission control systems in specific Saab and Subaru vehicles. Featuring a narrow-band heated sensor, it provides precise oxygen level measurements to the engine control unit, helping maintain efficient combustion and reduce harmful emissions. The sensor includes a 4-wire setup with blade-type terminals and a male rectangular connector, ensuring secure electrical connections. Its threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation. The sensor’s metal housing and steel finish contribute to its durability under high-temperature engine conditions. The included wiring harness measures 20.9 inches, with an overall length of 24.6 inches from sealing surface to connector end, facilitating proper fitment in the specified vehicle models.

Compatible Vehicles and Applications

• Saab 9-2X
• Subaru B9 Tribeca
• Subaru Baja
• Subaru Forester
• Subaru Impreza
• Subaru Legacy
• Subaru Outback
• Subaru Tribeca
• Subaru WRX

This oxygen sensor is essential for maintaining proper engine function and emissions compliance in these vehicles.

Installation Notes and Tips

• Ensure the engine is cool before installation to avoid burns or damage
• Use a 22 mm oxygen sensor socket for removal and installation
• Verify the sensor’s wiring harness length and connector type match the vehicle’s factory specifications
• Do not overtighten the sensor; torque to manufacturer specifications to prevent damage
• Check for any exhaust leaks around the mounting area after installation

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15025 is manufactured with high-quality metal housing and components to withstand harsh engine environments. As a standard replacement grade sensor, it meets OEM specifications for fit and function. Bosch products typically come with a limited warranty covering defects in materials and workmanship; please refer to Bosch’s official warranty terms for detailed information.