Bosch Premium Oxygen Sensor

The Bosch Premium Oxygen Sensor (also called an O2 sensor or lambda sensor) monitors the oxygen content in your exhaust stream and sends that data to the engine control unit. The ECU uses the signal to fine-tune the air-fuel mixture. This helps the engine run efficiently, keeps emissions in check, and supports good fuel economy.

Key Features:

• Engineered by Bosch, a leading original equipment supplier and the company that pioneered the automotive oxygen sensor
• Designed to deliver fast, accurate signal response for precise air-fuel ratio control
• Durable sensing element and housing built to withstand high exhaust temperatures, vibration, and contaminants
• Helps maintain proper emissions system performance and reduce the risk of check engine light issues
• Available in upstream and downstream configurations across multiple applications

A worn or failing oxygen sensor can cause poor fuel economy, rough idle, increased emissions, and reduced performance. Replacing it with a quality Bosch sensor helps restore efficient engine operation. Select the correct variant for your application from the options on this page.