Bosch 15814 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Subaru Baja, Legacy, and Outback

The Bosch Actual OE Oxygen Sensor 15814 is designed specifically for select Subaru models, including the Baja, Legacy, and Outback. This narrow-band heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Specific fit for Subaru Baja, Legacy, and Outback models
• Heated narrow-band oxygen sensor for precise air-fuel ratio readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 14.8-inch wiring harness with a female square connector
• Standard replacement grade with metal housing and steel finish
• Four-pin terminal type with female terminal gender for secure connections
• Overall length of 18.5 inches and wiring harness length of 14.8 inches

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line focuses on delivering direct-fit replacement sensors that meet original equipment specifications. This ensures compatibility and reliable performance for emission control systems. The 15814 sensor maintains the integrity of your Subaru’s emission system by providing accurate oxygen level readings, which are critical for engine management and fuel efficiency.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate measurement of exhaust gases. The sensor’s metal housing and steel finish provide durability under harsh engine conditions. It includes a 14.8-inch wiring harness with a female square connector and four-pin terminals, ensuring a secure and precise electrical connection. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation using standard tools.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for Subaru Baja, Legacy, and Outback
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate emissions data
• Helps reduce harmful exhaust emissions by maintaining sensor accuracy
• Prevents engine performance issues caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Bosch 15814 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. Avoid over-tightening the sensor to prevent thread damage. No mounting bracket is included, so use the existing mounting point on the exhaust system.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and provide reliable performance. The Actual OE Oxygen Sensor 15814 is a standard replacement part designed to meet or exceed OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to ensure customer confidence in the product.