Bosch 15418 Oxygen Sensor - Downstream Left, Downstream Right or Upstream

Overview of Bosch Engineered Oxygen Sensor 15418

The Bosch Engineered Oxygen Sensor 15418 is designed specifically for Toyota 4Runner and Tundra models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Compatible with Toyota 4Runner and Tundra vehicles
• Standard replacement narrow-band heated oxygen sensor
• 12-inch wiring harness with 4 wires and blade terminals
• Flange mounting type with 18 mm thread diameter
• Durable metal housing with steel finish
• Connector features a rectangular shape with male terminals
• Overall length of 15.7 inches for precise fitment

Detailed Product Features and Specifications

This Bosch Engineered Oxygen Sensor 15418 is a specific fit part designed to replace the original oxygen sensor in Toyota 4Runner and Tundra models. It features a 12-inch wiring harness with four wires and blade-type terminals, ensuring secure electrical connections. The sensor is a narrow-band heated type, which helps the engine control module maintain the correct air-fuel ratio by providing accurate oxygen level readings. The sensor mounts via a flange with an 18 mm thread diameter and a 22 mm hex size for installation using standard tools. The metal housing and steel finish provide durability and resistance to harsh engine conditions. The connector is male with a rectangular shape, designed to match factory wiring harnesses for a seamless replacement.

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering reliable emission control components engineered to meet or exceed OEM specifications. This product line emphasizes precise fitment and consistent sensor performance, which is critical for maintaining vehicle emissions compliance and engine efficiency. The 15418 sensor is part of this line, offering a standard replacement option tailored for specific Toyota models.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture control in Toyota 4Runner and Tundra
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate exhaust gas data
• Reduces emissions by ensuring correct sensor feedback to the engine control unit
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15418, ensure the vehicle 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 the factory setup to prevent electrical issues. Do not reuse old mounting hardware if damaged, and avoid over-tightening the sensor to prevent thread damage. Confirm the sensor is securely mounted with the flange for proper sealing.

Quality Assurance and Warranty

This oxygen sensor is manufactured by Bosch, a recognized supplier of automotive components with strict quality control standards. The sensor meets OEM specifications for fit, form, and function. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors. Refer to Bosch or the vehicle manufacturer for exact warranty coverage.