Heater Control Valve is produced like the originals with the clip that replaced the capillary tube. Don't be misled by those who tell you that you have to pay a fortune to get a true original. This is not the case, and Chevy proved it when they dropped the tube from production and went with the clip. If your valve had the temperature capillary tube and you want to keep it, simply remove the clip from the new valve and replace it with your own original tube. Dancuk #013 fits all 1957 Chevy models.