Bosch Oxygen Sensor Unheated OE Replacement

The Bosch unheated oxygen sensor (also called an O2 sensor or lambda sensor) is an OE replacement designed to monitor the oxygen content in your engine's exhaust stream. It sends that information to the engine control unit so the ECU can adjust the air-fuel mixture. This helps keep combustion efficient, emissions low, and the engine running smoothly.

Key Features:

• Unheated sensor design that matches the original equipment specification
• Built as an OE replacement for a direct-fit installation
• Helps maintain proper air-fuel ratio control for fuel economy and emissions performance
• Made by Bosch, which has long supplied oxygen sensor technology to automakers worldwide
• Helps restore performance when a worn or contaminated sensor causes a check engine light, rough running, or poor mileage

Bosch has a long history of developing and supplying oxygen sensors to vehicle manufacturers. This product line gives you OE-style quality and dependable operation. Select the correct part number for your application from the variants listed on this page.