Nordyne 664087R Restrictor Orifice 318973-401 offering the same electrical and

offering the same electrical and mechanical profile

Compact & Rugged: The die-cast aluminum construction provides a durable

preventing the burner from cutting out prematurely during a hot water call

Manual Reset Safety: Requires technician intervention after a trip to ensure the root cause of low oil pressure is addressed

Nordyne 664087R Restrictor Orifice 318973-401 offering the same electrical andThe Nordyne 664087R Restrictor Orifice is a critical fixed bore metering device engineered for precise refrigerant expansion in HVAC evaporator coils. With an exact inner diameter of . 087 inches (Size #87), this OEM Nordyne part is designed to replace worn or fouled orifices that cause irregular superheat or subcooling readings. Proper sizing of the flow restrictor orifice is essential for maintaining the pressure drop required for efficient phase