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

provided the part number matches the technical service manual

this is a standard field-serviceable part

Is the 90-245 a direct fit for the 90-232

Sterling 253R01874-001 Fan Guard Els PW 17895 Check the stamping on yourThe 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