The York S1-024-19082-017 Heat Relay is an essential OEM replacement part engineered for precise thermal management in residential and commercial HVAC systems

and SQ series

Its durable metal housing and high-heat tolerance make it a dependable staple for maintenance professionals requiring a genuine Lennox replacement part

Common Questions Can I use this #42 orifice for a propane conversion

Nordyne 664477R Coupling 30067439-890 The York S1-024-19082-017 Heat RelayThe Nordyne 664477R Bulkhead Coupling is a mission critical OEM component designed for high pressure R410A refrigerant applications. Engineered for 3 8" linesets, this brass refrigerant coupling provides a secure, leak proof transition through equipment cabinets, ensuring structural integrity while maintaining a gas tight seal. As a genuine Nordyne replacement part, it is the standard specification for specialized HVAC systems involving brands like