The MK-Z series part number equivalent to the old type is “MKB20-10RZ-M9NL.” When only the cylinder is to be replaced, and the current switch will continue to be used, use part numbers “MKB20-10RZ” and “BQ4-012” (auto switch mounting bracket). Since the mounting holes of MK-Z series cylinders are common to both through-hole and both ends tapped types, if the cylinder to be replaced is the