The Meritor RKN28055 Relay Valve Kit is a replacement kit for Meritor relay valve assemblies, identified by part number RKN28055. It is referenced as Mack 8235-RKN28055, linking Meritor’s part to Mack equipment and part catalogs. This kit is used to service or replace the relay valve in air brake systems to restore proper valve operation in commercial vehicle braking circuits.
