Bosch 13643 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Lexus IS300

The Bosch Engineered Oxygen Sensor 13643 is designed specifically for the Lexus IS300, providing precise air-fuel mixture readings to optimize engine performance and emissions control. This narrow-band heated oxygen sensor ensures accurate feedback to your vehicle’s engine management system.

• Specific fit for Lexus IS300 models
• Heated narrow-band oxygen sensor for faster response
• Threaded mounting type with 18 mm thread diameter
• 4-wire design with blade terminals and male connectors
• Durable metal housing with steel finish
• Overall length of 28.7 inches including 25.4-inch wiring harness
• Connector shape: rectangular, male gender
• Standard replacement grade for reliable performance
• 22 mm hex size for installation

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise and reliable emission control components tailored to specific vehicle applications. The 13643 oxygen sensor is part of this line, engineered to meet OEM specifications for the Lexus IS300. This ensures compatibility and consistent sensor performance under various driving conditions.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate oxygen level detection. The sensor includes a 4-wire configuration with blade-type terminals and a rectangular male connector, facilitating a secure electrical connection. The threaded mounting type with an 18 mm diameter ensures proper fitment and sealing in the exhaust system. Constructed with a metal housing and steel finish, the sensor is built to withstand harsh engine environments. The wiring harness length of 25.4 inches and overall length of 28.7 inches provide sufficient reach for installation in the Lexus IS300.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate sensor data
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers caused by sensor failure
• Improves fuel economy by enabling precise engine adjustments

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 13643 on a Lexus IS300, ensure the sensor threads are clean and free of debris before mounting. Use a 22 mm hex socket for proper tightening without damaging the sensor. Verify the connector orientation matches the vehicle’s wiring harness to avoid connection issues. Since this is a specific fit sensor, no modifications to the wiring harness are typically required.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This sensor is a standard replacement grade part designed to meet OEM specifications. While specific warranty details are not provided here, Bosch products generally come with manufacturer-backed warranties to protect against defects in materials and workmanship.