Bosch 16617 Oxygen Sensor - Upstream or Upstream Right

Reliable Oxygen Sensor for Lexus, Toyota, and Subaru Vehicles

The Bosch Validated Oxygen Sensor 16617 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. Engineered specifically for select Lexus, Toyota, and Subaru models, this oxygen sensor ensures precise monitoring and efficient operation.

• Specific fit for Lexus, Toyota, and Subaru models including Avalon, Camry, Crosstrek, Forester, Impreza, Legacy, NX300h, Outback, RAV4, RX350, and Tacoma
• Heated wide band oxygen sensor with narrow-band sensor type for accurate emissions data
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• 11.7-inch wiring harness length with 4 male blade terminals and a square male connector
• Durable metal housing finished in steel for long-lasting performance
• Standard replacement grade with included wiring harness

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict OEM specifications for fit, form, and function. This ensures that part number 16617 integrates seamlessly with the vehicle’s emission control system, providing reliable sensor readings and maintaining compliance with emissions standards.

Product Details and Specifications

This oxygen sensor features a heated design to quickly reach optimal operating temperature, improving sensor response time and reducing emissions during cold starts. The sensor’s wide band type allows for precise measurement of oxygen levels in the exhaust, while the narrow-band sensor type supports accurate air-fuel ratio adjustments. The 4-wire configuration with blade terminals and a square male connector ensures a secure electrical connection. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation using standard tools. The sensor’s overall length is 15.2 inches, with a wiring harness length of 11.7 inches, providing sufficient reach for proper placement in the exhaust system.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Lexus RX350 and NX300h models
• Improves fuel efficiency and reduces emissions in Toyota Camry and RAV4 vehicles
• Resolves check engine light triggers related to oxygen sensor faults in Subaru Forester and Outback
• Supports proper engine performance and emissions control in Toyota Tacoma and Lexus Avalon
• Prevents drivability issues caused by faulty oxygen sensors in Subaru Impreza and Legacy

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use a 22 mm oxygen sensor socket or wrench to remove the old sensor and install the Bosch 16617 sensor. Verify the wiring harness length and connector type match the vehicle’s factory specifications. Avoid twisting or damaging the wiring harness during installation. Confirm the sensor is threaded securely without over-tightening to prevent damage.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 16617 is manufactured with high-quality metal housing and components to meet OEM standards. This part is designed for durability and consistent performance in emission control systems. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.