521230 Suburban KIT MOTOR / GSKT AND SCREW SF-20/25/30Q/FQ 20VHQ/VHFQ

Complete OEM‑style motor + gasket + screw kit for SF‑series furnaces

Replaces: 521231 SF-35Q/FQ SFV-35Q/FQ 25VHQ/VHFQ

This Suburban 521230 kit provides the correct 12‑volt blower/combustion motor along with the required gasket and mounting screws for SF‑20Q, SF‑25Q, SF‑30Q, SF‑20FQ, SF‑25FQ, SF‑30FQ, and the high‑output 20VHQ/VHFQ furnaces. These furnaces use a compact motor that must maintain precise airflow for ignition and heat‑exchanger performance. Including the gasket and screws ensures a proper seal and secure mounting—critical for combustion safety and noise reduction.

SF-20 SF-20F (3 INCH MOTOR) (ABOVE SERIAL NO. 012205202)

SF-25 SF-25F (3 INCH MOTOR) (ABOVE SERIAL NO. 012106952)

SF-30 SF-30F (3 INCH MOTOR) (ABOVE SERIAL NO. 012003742)

What’s included

• OEM‑spec Suburban blower/combustion motor

• Replacement motor gasket for proper combustion‑chamber sealing

• Correct mounting screws for SF‑series housings

• Direct‑fit components for quick, technician‑friendly installation

Compatible furnace models

• SF‑20Q / SF‑25Q / SF‑30Q

• SF‑20FQ / SF‑25FQ / SF‑30FQ

• 20VHQ / 20VHFQ (high‑output variants)

These models use the same motor footprint but require the correct gasket thickness and screw pattern—both included in this kit.

Why this kit matters

• Ensures proper combustion‑air and circulation airflow

• Prevents ignition lockouts caused by weak or inconsistent airflow

• Restores correct RPM and heating performance

• Replaces worn gaskets that can cause noise, vibration, or airflow leaks

• Provides all hardware needed for a complete, reliable repair