Wayne 21427 Blower Wheel – 4-1/4" x 3-1/2" (1/2" Shaft, 12V Systems)

Restore proper airflow and burner performance with the Wayne 21427 blower wheel, designed for 12V burner systems using a 1/2" shaft. This component is essential for delivering the air needed for efficient combustion.

If your burner isn’t producing consistent heat, is running smoky, or sounds out of balance, a worn or damaged blower wheel is often the cause. Replacing it helps bring your system back to proper operation.

Specifications:

• Diameter: 4-1/4"
• Width: 3-1/2"
• Shaft Size: 1/2" Bore
• Application: 12V Burner Systems

Fits:

• Wayne 12V Burner Applications

What it does:
The blower wheel (squirrel cage) is driven by the burner motor and pushes air into the combustion chamber. This airflow is critical for maintaining the correct air/fuel mixture for clean and efficient burning.

Why it matters:
A worn or unbalanced blower wheel can lead to:

• Poor combustion
• Smoke and soot buildup
• Reduced efficiency
• Vibration and noise

Replacing it restores proper airflow, improves combustion, and helps your burner run smoother and more reliably.

Not sure if this is the right blower wheel for your setup? Reach out—we’ll help you get the correct part.