Precision Tolerance: Maintains a tight +/- 3% capacitance tolerance to ensure the motor operates within the manufacturer's specified amperage range

maintaining the thermal efficiency of the heat exchanger by ensuring consistent air distribution across the coil

This HVAC circuit board replacement integrates a 3-amp blade fuse for low-voltage circuit protection and features onboard diagnostic LEDs that simplify fault code interpretation in the field

This model features a 32-foot pitch and utilizes a ball bearing motor design

OEM Compatibility: Replaces JCI York 473-20937-001

Lennox 78F43 Blower Shaft R-410A Precision Tolerance: Maintains a tightThe Lennox 78F43 Blower Shaft (OEM Model LB 50255C) is a critical mechanical component engineered for heavy duty application in industrial and residential air handling units. Machined from high grade C1045 carbon steel, this 1 inch diameter shaft is designed to withstand high torque loads and continuous rotational cycles within the blower assembly. With a precision cut length of 27. 25 inches, it features a standardized 1 4" keyway and a flat for