2 used oxygen sensors (upstream) available for Tahoe 2007-2014. They were installed from the agency on my 2014 car and currently it has 250,000 km and they are working without any problem. This means if you want them for temporary use and you don't have the budget for new ones. For your information, the upstream oxygen sensors are the important ones that affect fuel consumption and are always the ones that break and get replaced. The downstream ones are usually not replaced. I intend to overhaul the car and do a full service for everything, which is why I'm selling them. Otherwise, there's no problem with them and they are currently installed in the car, but their lifespan is considered over, and it's better for you than scrapyards. Both for 150