ATMA SUPPLY SM550 motor front view for simple replacement in vent fans.
ATMA SUPPLY SM550 motor side profile ready for quick retrofit in compatible units.
ATMA SUPPLY SM550 blower wheel ensures smooth airflow in compatible units.
ATMA SUPPLY SM550 shaft dimensions aid precise mounting.
ATMA SUPPLY SM550 wiring and plug enable quick electrical hookup.
ATMA SUPPLY SM550 mounting studs spacing supports secure retrofit.
ATMA SUPPLY SM550 reversible CW CCW rotation offers installation flexibility.

ATMA SUPPLY

ATMA SUPPLY SM550 Universal Bathroom Vent Fan Motor Kit — 50 CFM, 120V, for Nutone Broan 65100 EM550 EM750

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$26.35

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Why customers choose TaskHolt Tools

Overview

The ATMA SUPPLY SM550 Universal Bathroom Vent Fan Motor Kit is designed as a practical, universal replacement for a range of bathroom exhaust fans. It runs on standard 120V power at 60Hz and delivers roughly 50 CFM of airflow while drawing a modest 0.29A. The kit centers on a compact motor paired with a 4.5-inch flat/paddle style blower wheel, making it suitable for a variety of in-ceiling or in-wall installations.

What’s Included and Core Benefits

  • 1 x SM550 universal bathroom exhaust motor
  • 1 x paddle-style blower wheel (4.5 inches)
  • Shaft approximately 3/16" x 1 3/4", wiring 8.5" with 2-prong plug, mounting studs 1 7/8" on center, 5/8" coil stack
  • Reversible rotation (CW or CCW) to match your existing setup

Key Specifications at a Glance

  • Voltage: 120V; Frequency: 60Hz
  • Airflow: ~50 CFM; Current: ~0.29A
  • Speed: ~3000 RPM; Shaft: 3/16" x 1 3/4"
  • Durable construction, plug-ready wiring, and straightforward fit for retrofit projects

Compatibility and Installation Tips

This motor is engineered as a replacement for Nutone Broan 65100 and similar models, including Uppco, Ventorola E498-1, Bay Motors, Sears 569, Dayton, and more. The CW/CCW rotation option helps you align airflow with your ductwork, while the included mounting hardware supports a secure retrofit in compatible units.

What You Might Notice

Performance and results can vary by installation and existing ductwork. Many users report smoother startup, consistent airflow, and quieter operation after replacing older components. This kit is a practical upgrade for DIY enthusiasts and technicians seeking a versatile, reliable replacement option without overhauling the entire fan assembly.

Why Choose ATMA SUPPLY

ATMA SUPPLY designs components to fit a broad range of mainstream units, aiming to shorten repair time and restore dependable exhaust flow. The SM550 kit combines compatibility, ease of installation, and durable materials to support ongoing bathroom ventilation needs.

FAQ

Q: What’s included in the ATMA SUPPLY SM550 kit?

A: The kit includes one SM550 motor, a 4.5-inch paddle fan, shaft, wiring, and mounting hardware.

Q: Is this motor compatible with Nutone Broan 65100 units?

A: Yes, it’s designed as a universal replacement for Nutone Broan 65100 and similar models and supports CW or CCW rotation.

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