7 cm³/rev displacement

please verify if the gasket is included or needs to be ordered separately prior to opening the system

When equipped with the 12A04 vent limiter

The R40154B004 replaces several Armstrong Air and Allied Air parts

York S1-031-02985-000 Control Board 319825-402 7 cm³/rev displacementThe York S1 031 02985 000 Control Board is a critical OEM replacement component designed for AHE series one piece air handlers and related residential cooling equipment. This circuit board serves as the primary processing unit, managing blower motor speeds, fan cycling, and multi stage temperature regulation. Engineered for seamless integration with standard ECM motors, it ensures high performance communication between thermostats and system