This is the original dash pot, gas pedal throttle linkage from a 1958 Cadillac. This will fit all 1958 Cadillac's except Brougham, and may fit other years, but please make sure it is correct for your application before bidding. This is from a single carb car. This looks to be in good used original condition. The dash pot has good suction / vacuum when the center plunger is pressed, and appears to be in working order. It needs a good clean up, otherwise it all looks pretty good. Comes as shown, Sold As Is. Please let me know if you would like any other info. Thanks