Average replacement cost of oxygen sensors . Replacing an oxygen (O2) sensor costs between $200 and $500 on average. The O2 sensor itself can cost anywhere from $20 to $300. Profe ...

A heavy-duty mechanic works through the tricky process of troubleshooting and replacing an oxygen sensor on a commercial ...

When was the last time you thought about your vehicle's often overlooked parts, like the O2 sensor? The truth is that the O2 sensor serves a very important purpose and it can go bad, which means you ...