521258 Suburban Blower Motor 12V, DC SF-30VHQ/VHFQ

The Suburban 521258 is the correct 12‑volt blower/combustion motor for SF‑30VHQ and SF‑30VHFQ RV furnaces. These “VHQ / VHFQ” models use a higher‑output combustion housing that requires a specific motor footprint and airflow profile different from the standard SF‑30 and SF‑30F motors.

This motor restores the proper combustion‑air volume needed for ignition and the heated‑air circulation required for stable furnace performance. It installs directly with the correct mounting pattern, shaft length, and rotation—no modifications needed.

Key Features

• OEM‑style Suburban motor for SF‑30VHQ / SF‑30VHFQ

• Provides correct combustion‑air and circulation airflow for high‑output VHQ housings

• Factory‑matched rotation, shaft length, and mounting footprint

• Designed for high‑temperature RV furnace environments

• Restores proper ignition airflow, heat output, and safety performance

When this motor typically needs replacement

• Slow or inconsistent blower startup

• Furnace cycles without lighting or enters lockout

• Motor squealing, grinding, or vibrating

• Weak airflow despite clean ducts

• Overheating or intermittent operation