This OEM refrigerant check valve is critical for maintaining correct refrigerant flow direction and preventing backflow during compressor staging or system shutdown

provided the mounting footprint and terminal orientation match

Exact OEM Fit: Ensures seamless compatibility with ICP furnace housings without modifications

33" Open / -1

Trane KIT16545 Valve Upgrade Kit 318973-401 This OEM refrigerant check valveThe Trane KIT16545 is a high performance 5 inch Butterfly Valve Upgrade Kit engineered for precision fluid and airflow management in commercial HVACR applications. As an OEM spec butterfly isolation service kit, this assembly utilizes a durable metal disc and a robust 16. 4 inch body to ensure a bubble tight seal and reliable system isolation during critical maintenance cycles. Designed to replace legacy 5 inch valves, the KIT16545 includes the