As a critical OEM York replacement part

and Ducane equipment

The most common symptoms include the furnace blower running continuously despite no heat

making it a critical stock item for contractors managing supermarket racks or ultra-low temperature systems where oil return is often a challenge

Armstrong Fluid Technology 116475-132 Pump 320788-704 As a critical OEM YorkThe Armstrong Fluid Technology 116475 132 Pump, also known as the Model H64BF, is a high performance in line circulator pump engineered for precision in hydronic heating and cooling systems. This 3 4 HP centrifugal pump features a single phase, 115 230Vac motor with built in thermal overload protection, ensuring reliable operation under varying electrical loads. Its cast iron body is paired with a non ferrous impeller and an oversized alloy steel