I purchased these four Schrader EZ gauges to replace the OEM gauges on my 2010 Dodge Journey that had a corroded aluminum stem and broken nuts. I contacted Schrader first to make sure the sensors would work for my car. These sensors cost about half to a third of the retail price. They were easily installed by the automotive department of a local chain store for less than $10 each. They are automatically programmed into my machine. Just make sure the tires are properly inflated to manufacturer standards, which should be listed on the door jamb or manual. This usually happens in "cold" weather or when the car hasn't been driven for at least a few hours. I had to inflate the car an additional 1-2 pounds of air while driving it for several minutes. The vehicle may also need to be driven at a certain speed for a few minutes to properly program the vehicle. I'm glad this rubber valve sensor was made for my car to give me peace of mind. Good to know that the rubber valve can also be purchased separately in the future if required.