This genuine OEM replacement part is engineered to meet exact factory tolerances

This specific auto limit switch is the direct engineering successor to the legacy 5H74976-3

This OEM York replacement sensor features heavy-duty lead wires and a moisture-resistant encapsulation designed to withstand the thermal expansion and contraction cycles common in outdoor HVACR environments

Common signs include the motor failing to start despite receiving proper line voltage and 24V control signals

installing a fresh HVAC wireway is standard practice to ensure the system meets original factory safety configurations

Mueller Industries AH15502 Valve R-134A This genuine OEM replacement partThe Mueller Industries AH15502 is a professional grade refrigerant pressure relief valve engineered for critical overpressure protection in commercial HVACR systems. Specifically designed as a direct replacement for 5231 400, this atmospheric relief valve features a 400 PSI set pressure. The construction utilizes high tensile brass for corrosion resistance and reliable seating under high pressure conditions. With a 3 8 NPTFE inlet and a 3 8 flare