and they are interchangeable in all documented Lennox technical manuals

Key Benefits: Complete Component Refresh: Contains all essential seals

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

the R-B terminals open high (for heating) and the R-Y terminals open low (for cooling or circulator control)

this HVAC jackshaft hardware provides the necessary mechanical linkage to maintain accurate blade positioning across multiple sections

Nordyne 493214R Heat Exchanger R-410A and they are interchangeable inThe 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