233103 Suburban Blower Motor 12V, DC SF-42 42F (2 1 2 INCH MOTOR)

Replaces: 232212

Fits SF‑42 and SF‑42F Furnaces (2‑1/2″ Motor)

The Suburban 233103 is the OEM blower/combustion motor used in SF‑42 and SF‑42F RV furnaces. These are the highest‑capacity SF‑series models, requiring a larger 2‑1/2 inch motor to deliver the combustion air and heated‑air circulation needed for their bigger heat exchangers. When the original motor becomes noisy, slow to start, or fails to reach proper RPM, this replacement restores correct airflow and reliable ignition performance.

It matches the original Suburban mounting pattern, shaft length, rotation, and electrical characteristics for a direct, no‑modification installation.

Key Features

• OEM‑style Suburban SF‑42 / SF‑42F furnace motor

• Correct 2‑1/2″ motor for high‑output SF‑series housings

• Provides proper combustion‑air and circulation airflow

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

• Built for high‑temperature RV furnace environments

• Restores proper ignition, heating output, and safety performance

When this motor typically needs replacement

• Blower slow to start or fails to reach ignition airflow

• Furnace locks out or cycles without lighting

• Motor overheats or trips thermal protection

• Grinding, squealing, or vibration during operation

• Weak airflow from registers despite clean ducts