Using the FAN1252 ensures the motor stays within its rated amperage while moving the correct volume of air for the condenser coil

while 49K0301 is the updated catalog iteration of the same valve

always verify the specific UL 555S rating required for your project

Using a non-OEM fan blade replacement can alter the amp draw of the motor and decrease SEER ratings

Nordyne 493214R Heat Exchanger R-410A Using the FAN1252 ensures theThe Nordyne 493214R Heat Exchanger is an OEM primary heat exchanger engineered specifically for Nordyne gas furnaces and M1MB series indoor units. Designed to meet exact factory tolerances, this aluminized steel heat exchanger ensures efficient thermal transfer while maintaining structural integrity under high cycle stress. As a direct HVAC replacement part, it addresses common failure points such as stress fractures or combustion byproduct buildup