ACDelco GM Genuine Parts Oxygen Sensor

The ACDelco GM Genuine Parts Oxygen Sensor (also called an O2 sensor, lambda sensor, or air-fuel ratio sensor) is an original-equipment-grade emissions and engine management component. It measures the oxygen content in the exhaust stream. It sends that data to the engine control module so the module can fine-tune the air-fuel mixture for efficient combustion.

Key Features:

• GM Genuine Parts engineering from ACDelco, General Motors' official parts brand
• Gives the engine control module accurate exhaust oxygen readings for proper fuel metering
• Helps maintain fuel economy, smooth engine performance, and low emissions
• Helps prevent check engine light faults tied to worn or failed sensors
• Built to meet original-equipment fit, form, and function requirements
• Available in upstream and downstream configurations across the product line

A failing oxygen sensor can cause poor fuel economy, rough idle, hesitation, and increased exhaust emissions. Replacing it with a GM Genuine Parts sensor from ACDelco restores correct feedback to the engine management system. Select the child item that matches your application for the exact sensor.