Tecumseh K90-65 Overload Kit 318820-201 field-reliable 1/2-inch 3-way control valve

field-reliable 1/2-inch 3-way control valve specifically engineered for hydronic flow modulation in commercial and industrial HVAC systems

technicians should verify that the diaphragm bead is flush within its retention groove to prevent air leaks and ensure accurate stem positioning

Maintaining a clean and structurally sound indoor blower wheel is essential for preventing compressor strain and liquid slugging due to inadequate airflow

Engineered with a large 15-inch synthetic elastomer diaphragm and a durable die-cast aluminum body

making it a versatile 1:1 replacement for critical components in furnaces

Tecumseh K90-65 Overload Kit 318820-201 field-reliable 1/2-inch 3-way control valveThe Tecumseh K90 65 Overload Kit is a critical field service component engineered to provide precise compressor thermal protection for high back pressure reciprocating models, including the AE4425Z XN1A series. Built for 208 230V single phase applications, this OEM Tecumseh part functions as a fail safe by monitoring terminal current and internal temperature. High current draws or thermal spikes trigger the overload protector to interrupt the common