521234 Suburban Blower Wheel SF20Q/FQ SFVH20Q/FQ 

(STARTING SERIAL NUMBER 19416541)

The Suburban 521234 Blower Wheel is the OEM circulation‑air wheel used in updated SF‑20Q/FQ and SFVH‑20Q/FQ RV furnaces. This wheel mounts to the motor shaft on the heated‑air side of the furnace and delivers the correct airflow for heat distribution, ignition support, and stable furnace operation.

A worn, cracked, or unbalanced blower wheel can cause vibration, weak airflow, ignition issues, or excessive noise. Replacing it with the OEM 521234 restores proper airflow and ensures smooth, reliable performance.

Key Features

• OEM Suburban blower wheel for SF‑20Q/FQ and SFVH‑20Q/FQ

• Correct diameter, width, and hub fit for updated SF‑20 housings

• Provides proper heated‑air circulation and supports ignition airflow

• Balanced for smooth, quiet operation

• Required for furnaces beginning at serial number 19416541

Compatibility

Fits the following models (starting serial number 19416541):

• SF‑20Q

• SF‑20FQ

• SFVH‑20Q

• SFVH‑20FQ

Earlier serial numbers use a different blower wheel, so verifying the furnace data plate is essential.