McDonnell & Miller 313900 Gasket making it an essential component

making it an essential component for liquid line and suction line assemblies

While often documented in manufacturer bulk packs

This part is primarily used in Goodman GMP

or delayed ignition

McDonnell & Miller 313900 Gasket making it an essential componentThe McDonnell & Miller 313900 is a high performance valve bracket gasket engineered specifically for technical reliability in boiler water feeder systems. This part, recognized by the model number 37 27, is the critical seal required for McDonnell & Miller 47 Series, 51 Series, 53 Series, and 3155 Series units. Designed as the direct replacement for the legacy 312800, this updated component ensures a pressurized, leak proof interface between the valve