Designed to withstand the rigorous duty cycles of residential and commercial gas-fired equipment

Built for veterans in the field

If the motor has no physical resistance and line voltage is present without rotation

This ensures the motor defaults to one speed and switches to the other at your programmed times

The unit features 18 inch wire leads for flexible wiring and utilizes a hysteresis synchronous motor to ensure long-term duty cycle performance

Carrier KR51BK419 Blower Pulley 322057-301 Designed to withstand the rigorousThe Carrier KR51BK419 Blower Pulley is a high performance genuine OEM replacement part designed for heavy duty commercial HVAC applications. Engineered for precision power transmission, this blower wheel pulley is a critical component for maintaining the correct fan speed and static pressure in belt driven systems. Constructed from durable materials to withstand high torque and continuous operation, the KR51BK419 ensures optimal belt alignment,