Item 7028605 has must read information.
: Due to vendor changes. When ordering this piston valve, first verify the vendor part number stamped on the cylinder. Use Piston Valve (P/N 7028605) for cylinders: P/N 1684405 stamped with vendor part number 5000531M91 P/N 1684411 stamped with vendor part number 5000524M91 Use Piston Valve (P/N 7029847) for cylinders: P/N 1684405 stamped with vendor part number 5000531M92 P/N 1684411 stamped with vendor part number 5000524M92
