Bosch 13847 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Buick, Chevrolet, GMC, and More

The Bosch Validated Oxygen Sensor 13847 is designed to provide accurate air-fuel mixture readings for specific vehicle models including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab. This narrow-band heated oxygen sensor ensures optimal engine performance and emission control for models like the Trailblazer, Envoy, and Ascender.

• Specific fit for Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models
• Heated narrow-band oxygen sensor for precise emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 13.5-inch wiring harness with 4 male blade terminals and trapezoid connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with universal compatibility limited to specific vehicle applications

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor line is engineered to meet strict OEM specifications, providing reliable and consistent sensor performance. This product line focuses on delivering accurate oxygen sensing with heated narrow-band technology, ensuring proper engine management and emissions control. The 13847 sensor is part of this line, offering a precise fit and dependable operation for select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles.

Product Details and Specifications

The Bosch 13847 oxygen sensor features a 16.9-inch overall length and a 15.7-inch length from the sealing surface to the end of the connector, allowing for proper installation in designated vehicle models. It includes a 4-wire heated sensor design with a trapezoid-shaped male connector and blade-type terminals, ensuring secure electrical connections. The sensor’s metal housing and threaded mounting provide durability and ease of replacement. This narrow-band sensor is designed to monitor exhaust oxygen levels accurately, supporting engine control units in maintaining optimal fuel efficiency and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine performance
• 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 specific Buick, Chevrolet, GMC, and other models

Installation Notes and Tips

When installing the Bosch 13847 oxygen sensor, ensure the threaded mounting is properly torqued to avoid exhaust leaks. The 13.5-inch wiring harness with trapezoid male connector should be connected securely to the vehicle’s harness. No mounting bracket is included, so use the existing mounting location. It is recommended to inspect the wiring and connector for damage before installation. Use a 22 mm socket for sensor removal and installation.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 13847 is manufactured to meet OEM standards for fit, form, and function. It is constructed with high-quality metal housing and heated sensor elements to ensure durability and reliable operation. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.