I will jump back in here, and say that most of the vendors carry a replacement valve. It is not the same as the original. If you want an original replacement try the swap meet. In the 5 years I have been on Ebay I haven't seen an original show up. Also like most hard to get parts they come with a premium price. As an example I purchased a NOS heater switch from a stovebolt member for 40 bucks. A week later the same switch on ebay sold for $75. So if you can deal with a member here, you generaly get a better price, and it gives another guy a few bucks to spend on their truck. Jim.