For Coats Tire Changer Models This is the valve that is operated by the foot pedals in the front and side of the machine found in many For Coats tire changers. For 5030, 5030a, 5030e, 5040, 5040a, 5040e, 5050, 5050a, 5050e, 5060, 5060a, 5060e, 5060ax, 5060ex, 5065, 5065a, 5065e, 5065ax, 5065ex, 5070, 5070a, 5070e.