this is a standard field-serviceable part

Key Benefits for Technicians: Durable Construction: The zinc metal bowl ensures structural integrity in high-vibration or high-temperature pneumatic circuits

provided the part number matches the technical service manual

This 1-inch bore ball bearing facilitates smooth shaft rotation within the blower assembly

Check the stamping on your existing blade or consult the unit’s parts list for part number 45946 or the Brookside SN4-1636 XL170 designation

Sterling 253R01874-001 Fan Guard Els PW 17895 this is a standard field-serviceableThe Sterling 253R01874 001 Fan Guard is a direct OEM replacement component engineered specifically for Sterling unit heaters and hydronic heating systems. This heavy duty wire guard is critical for maintaining HVAC safety compliance by providing a protective barrier around the axial fan assembly without impeding airflow or increasing static pressure. Designed for high performance industrial environments, the 253R01874 001 features a corrosion