Selling a used knock box controller 811907397E pulled from a 1986 Volkswagen scirocco 16 valve. In good usable condition with normal wear and tear. Was swapped into a cabriolet and ran fine until engine removed for a different engine swap. Knock box was functioning correctly when removed. No broken tabs or clips. Pins on the connector look to be in good condition. Was pulled from a running vehicle and stored in bins after. Selling this knock box controller used, as is, as pictured, no returns, no refunds. If you have any questions, please feel free to ask.