Bosch 13338 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Lexus and Toyota Vehicles

The Bosch Validated Oxygen Sensor 13338 is designed specifically for select Lexus and Toyota models, including the Highlander and RX300. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance.

• Specific fit for Lexus Highlander and Toyota RX300
• Heated narrow-band oxygen sensor for precise air-fuel mixture readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• 16.3-inch wiring harness length with 4-wire blade terminals and rectangular male connector
• Durable metal housing finished in steel with an overall length of 19.7 inches
• 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 validation standards for fit, form, and function. This ensures compatibility and reliable performance in emission control systems. The 13338 oxygen sensor is part of this line, providing a direct replacement solution tailored for specific Lexus and Toyota models.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings to the engine control unit. The sensor includes a 16.3-inch wiring harness with four wires and blade-type terminals, connected via a rectangular male connector with four terminals. The sensor mounts using a threaded 18 mm diameter fitting and requires a 22 mm hex tool for installation. Constructed with a metal housing finished in steel, the sensor weighs approximately 0.35 pounds and measures 19.7 inches in overall length, including an 18.5-inch length from the sealing surface to the end of the connector. This part is a standard replacement grade, designed to meet OEM specifications for emission control sensors.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Lexus Highlander and Toyota RX300
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level data to the engine control unit
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by ensuring proper combustion control

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 13338, ensure the vehicle is compatible with this specific part number and fitment. Use a 22 mm hex socket to remove and install the sensor securely. Verify the wiring harness connections match the original sensor’s blade terminals and rectangular male connector. Avoid damaging the wiring harness during installation and confirm the sensor is threaded in properly to prevent exhaust leaks. No mounting bracket is included, so use the existing mounting location on the vehicle.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 13338 is manufactured to meet OEM standards for durability and performance. It includes a heated element to ensure rapid sensor activation and consistent readings. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or supplier for exact warranty terms.