Bosch 15586 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Saab and Subaru Vehicles

The Bosch Validated Oxygen Sensor 15586 is designed specifically for select Saab and Subaru models, including the 9-2X, Forester, Impreza, Legacy, and Outback. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated oxygen sensor with 4-wire design for precise operation
• Specific fitment for Saab 9-2X and Subaru Forester, Impreza, Legacy, Outback
• 19.8-inch wiring harness length with included harness and square female connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing finished in steel for long-lasting use
• Wide-band sensor type for enhanced emission control accuracy

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable, vehicle-specific sensors that meet OEM standards. This line emphasizes precise fitment and consistent performance, making it suitable for emission control systems requiring accurate oxygen level detection. The 15586 sensor is part of this line, ensuring compatibility and quality for Saab and Subaru applications.

Product Details and Specifications

This Bosch oxygen sensor features a heated element to reduce warm-up time and improve sensor response. The 4-wire configuration includes a wiring harness measuring 19.8 inches, with a total length of 23.2 inches from sealing surface to connector end. The sensor uses a female pin terminal and a square-shaped female connector for secure electrical connections. Its threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation. The metal housing provides durability and resistance to harsh engine conditions.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces emissions by ensuring proper catalytic converter function
• Improves engine performance and drivability in Saab 9-2X and Subaru models
• Prevents rough idling and poor acceleration caused by faulty sensors

Installation Notes and Tips

When installing the Bosch 15586 oxygen sensor, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match your vehicle’s specifications. No mounting bracket is included, so use the existing mounting point. Properly torque the sensor to avoid damage to the threads or sensor housing.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 15586 is manufactured to meet strict quality standards for emission control components. It is designed as a standard replacement part to maintain factory-level performance. Bosch provides a limited warranty covering defects in materials and workmanship, ensuring reliability and peace of mind for your Saab or Subaru vehicle.