Bosch 13906 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Lexus SC300 and Toyota Supra

The Bosch Validated Oxygen Sensor 13906 is designed specifically for select Lexus and Toyota models, including the SC300 and Supra. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Wiring harness length: 20.3 inches
• Overall length: 24.6 inches
• Threaded mounting type with 18 mm thread diameter
• 4-wire configuration with blade terminal type
• Rectangle-shaped male connector with 4 terminals
• Heated narrow-band oxygen sensor for precise readings
• Durable metal housing with steel finish
• Hex size: 22 mm for installation
• Wiring harness included for direct replacement

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on providing reliable, vehicle-specific sensors that meet OEM specifications. The 13906 sensor is engineered to deliver consistent performance and durability, making it a suitable standard replacement part for emission control systems in Lexus SC300 and Toyota Supra vehicles.

Product Details and Specifications

This Bosch oxygen sensor features a 4-wire heated design, which allows for faster sensor warm-up and improved accuracy in measuring exhaust oxygen levels. The sensor’s narrow-band type is ideal for maintaining proper air-fuel mixture and reducing harmful emissions. With a threaded mounting type and an 18 mm thread size, installation is straightforward and compatible with the original equipment setup. The included wiring harness, measuring 20.3 inches, and the 24.6-inch overall length ensure proper fitment and connection within the vehicle’s exhaust system. The sensor’s metal housing and steel finish provide durability against heat and corrosion.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Lexus SC300 and Toyota Supra
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by ensuring proper air-fuel ratio control
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining optimal combustion

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 13906, ensure the vehicle is cool to avoid burns. Use a 22 mm hex socket for sensor removal and installation. Verify the connector orientation matches the original sensor’s rectangle-shaped male connector with 4 terminals. The threaded mounting type requires proper torque to avoid leaks or damage. Since this is a specific fit sensor for Lexus SC300 and Toyota Supra models, confirm compatibility before installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Bosch Validated Oxygen Sensor 13906 undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors to cover defects in materials and workmanship.