Bosch 18081 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Reliable Oxygen Sensor for Lexus, Toyota, Subaru, and Scion Vehicles

The Bosch Validated Oxygen Sensor 18081 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. This heated, wide-band oxygen sensor is compatible with specific models from Lexus, Toyota, Subaru, and Scion, ensuring precise fitment and reliable operation.

• Heated wide-band oxygen sensor for accurate emissions monitoring
• Specific fit for Lexus, Toyota, Subaru, and Scion models including Camry, RAV4, Forester, and more
• 14.3-inch wiring harness with 4 wires and blade terminals
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish and male square connector
• Standard replacement grade for dependable performance
• Wiring harness included for straightforward installation

About the Bosch Validated Oxygen Sensor Product Line

The Bosch Validated Oxygen Sensor line focuses on delivering sensors that meet strict quality and performance standards. These sensors undergo rigorous validation to ensure compatibility and durability across specific vehicle applications. The 18081 oxygen sensor is part of this line, offering a reliable replacement option for emission control systems in select Lexus, Toyota, Subaru, and Scion vehicles.

Detailed Product Description

This Bosch oxygen sensor features a heated design to quickly reach optimal operating temperature, improving sensor response time and reducing emissions during cold starts. The wide-band sensor type provides precise air-fuel ratio measurements, essential for modern engine management systems. With a 14.3-inch wiring harness and 4-wire configuration, the sensor connects via a male square connector with blade terminals, ensuring secure electrical connections. The threaded mounting with an 18 mm diameter and 22 mm hex size allows for easy installation using standard tools. Constructed with a metal housing and steel finish, this sensor is built to withstand harsh engine environments.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces vehicle emissions by providing precise air-fuel data
• Improves engine performance and drivability in Lexus RX350, Toyota Camry, Subaru Outback, and other compatible models
• Prevents rough idling and poor acceleration caused by faulty sensors

Installation Notes and Tips

Before installation, verify compatibility with your vehicle’s make and model, including Lexus, Toyota, Subaru, or Scion. Use a 22 mm oxygen sensor socket for removal and installation. Ensure the wiring harness is routed away from hot exhaust components to prevent damage. The sensor’s heated feature requires a proper electrical connection via the included wiring harness. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 18081 is manufactured to meet OEM standards for fit, form, and function. Bosch’s quality control processes ensure consistent sensor performance and durability. This sensor is a standard replacement grade part designed to maintain your vehicle’s emission control system integrity. Warranty coverage details should be confirmed with the point of purchase or Bosch directly.