Universal Compatibility: Fits standard 1/2-inch motor shafts

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

Key Benefits: Precise Thermal Protection: Employs a bi-metallic disc to disconnect circuits during high-temperature conditions

making it ideal for standard potable water and steam boiler applications

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

Carrier KR51BK419 Blower Pulley 322057-301 Universal Compatibility: Fits standard 1/2-inchThe 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,