My original Thermal Switch won't hold vacuum any more when it's cold, and I do want my air cleaner duct valves to work. Various places sell these but I don't have a part number or specifications with which to order one. My TSM says it should be closed at 40F and open at 55F. This is different than the Thermal Vacuum Switch, but some folks use the terms interchangeably. This part is a disk about 1/4" thick with two nipples sticking out the bottom, which exit the air cleaner and connect to vacuum lines. The Thermal Switch body lives inside the air cleaner housing. They were manufactured by Wells, and I can find lots of 'em on their website, but none seem to be listed for the Eagle. If anyone has an AMC or aftermarket part number for the correct switch, it would really help me out. Thanks!