Best Attic Fan Motor Replacements for Reliable Venting
| Product | Brand | Key Benefit | Best For |
|---|---|---|---|
| F0510B2944 Attic Ventilation Fan Motor | VELQUAI | Universal compatibility with Lomanco 1800/2000 series | DIY replacement, heat-resistant operation |
| 97009317 S97009317 Attic Fan Motor | Earthtec | Direct replacement for common brands with 1/10 HP power | Broan style and 4.3A load scenarios |
| F0510B2497 Lomanco Power Vent Attic Fan Motor Kit | ELECTRIC MOTOR WAREHOUSE | Complete kit with mounting wings and nylon nuts | Lomanco 2000/1800 compatible upgrades |
| F0510B2497 White Attic Fan Replacement Motor Kit | NUOVEPE | Copper windings for efficiency and lifespan | Lomanco 2000 series restoration with guide |
| 97009317 Attic Fan Ventilator Motor With Blade Kit | Showingo | Motor plus blade assembly for 1050–1200 CFM | High airflow attic systems with blade upgrade |
Answer: If you’re replacing an attic fan motor, look for a direct fit to your model, copper windings for efficiency, and a complete kit if you need mounting hardware. This guide highlights five motor replacements suitable for common Lomanco, Broan, and similar attic fans, with notes on compatibility, installation ease, and best-use scenarios for different homeowners.
Introduction: When choosing a replacement attic fan motor, the goal is reliable airflow, quiet operation, and an easy install. The top picks below are best for homeowners who want a straightforward DIY swap, or those upgrading to maintain 1050–1200 CFM airflow without extensive rewiring. The list covers universal Lomanco 1800/2000 replacements, direct fits for Broan-style units, and complete kits that simplify mounting and wiring. Each option notes who it’s best for and why it’s a strong choice in its category.
Overview Of Top Replacement Motors
The following products were selected for relevance to the “motor for attic fan” keyword and to cover common attic-ventilating needs—from quick DIY swaps to compatible kits that minimize modification. Use this table to compare compatibility, installation expectations, and material quality at a glance.
VELQUAI F0510B2944 Attic Fan Motor

The F0510B2944 is designed to replace Lomanco 1800 and 2000 series motors. It’s compatible with models like F0510B2497, A0416B2059, and A0510B2389, and includes three mounting brackets, lock nuts, and washers. This unit is intended for a straightforward, no-mods installation in about 30 minutes, restoring attic airflow quickly. The motor uses copper coils and a precision-balanced armature, rated at 120V, 1/10 HP, and 1100 RPM, for smooth, low-noise operation.
Best for: Homeowners performing a DIY swap on Lomanco 1800/2000 series fans. Choose this if you want a robust, self-contained motor kit with mounting hardware. Caution: Verify your unit’s mounting style aligns with the included brackets to avoid fitment issues.
Earthtec 97009317 Attic Fan Motor

This model claims direct compatibility with Broan items (F0812B3146, F0516B2516, F0510B2705, and others) and lists a 5″ diameter, 2-3/4″ thick housing with a 1/2″ shaft. It is a single-speed, 120V motor rated at 1100 RPM and 4.3 amps (1/10 HP). The specification note points to straightforward replacement, with an emphasis on simple wiring and mounting for quick restoration of attic airflow.
Best for: Buyers replacing a Broan-or-Broan-compatible motor with a single-speed unit. Better for: installations requiring a compact form factor and a ready-to-wire motor. Limitation: Some listings reference multiple model numbers; confirm your unit’s shaft size and mounting configuration before purchase.
ELECTRIC MOTOR WAREHOUSE F0510B2497 Kit

This kit combines the F0510B2944 motor with three mounting wings and nylon locking nuts. It provides a 1/10 HP, 115V (listed as 110V in some references), 1100 RPM motor with a 3.4 A draw. The kit aims to simplify installation for Lomanco 2000 and 1800 replacements by including the essential mounting hardware in one package.
Best for: Homeowners replacing a Lomanco 2000/1800 motor who want the mounting hardware included. Choose this if you prefer a single-box solution. Caution: Verify that the 115V/110V rating matches your electrical supply to prevent performance issues.
NUOVEPE F0510B2497 White Attic Fan Replacement Kit

This replacement motor kit is designed for Lomanco 2000 series fans, including 2000, 2000H, and 2000HC. It emphasizes copper windings for better electrical efficiency and longer life. The kit includes a detailed installation guide to assist wiring and mounting. Typical replacement time is around 10 minutes, making it a fast option for restoring airflow without replacing the entire unit.
Best for: Those restoring Lomanco 2000-series fans with an emphasis on motor longevity and ease of installation. Better for: homeowners who want a guided, low-effort swap. Limitation: Ensure your unit truly matches Lomanco 2000-series specs to avoid misfit.
NUOVEPE Power Vent Black Kit F0510B2497

This black motor kit includes the F0510B2944 motor, three mounting wings, nylon locking nuts, and an instruction manual. It specifies 120V, 3.4A, 60Hz, 1100 RPM, 1/10 HP, with a clockwise rotation when viewing the shaft end. It aims for an easy, straightforward installation, with clear wiring steps and mounting instructions.
Best for: Buyers who want a compact, all-in-one Lomanco-2000-series replacement kit with a clear install path. Choose this if you prefer a consistent black motor unit appearance. Caution: Some listings describe multiple voltage references; confirm your electrical supply before buying.
Showingo 97009317 Attic Fan Motor And Blade Kit

This combined motor and blade kit supports 1050 CFM to 1200 CFM applications and includes compatible motor options for models like F0516B3235 and 355-series units. It is suitable for upgrading both motor and blade to maintain high airflow. The kit targets attic fans with larger capacity and varied Broan-compatible housings.
Best for: Higher airflow attic systems needing both motor and blade compatibility. Better for: users upgrading to maintain strong ventilation in larger attics. Limitation: Verify blade compatibility with your existing fan housing to ensure proper fit.
Buying Guide: Key Considerations For Attic Fan Motors
What should you check before buying? First, verify compatibility with your fan’s model and housing size. Look for copper windings for efficiency and durability, and confirm the motor’s RPM, voltage, and horsepower align with your existing system. If you’re replacing a Lomanco or Broan unit, consider a kit that includes mounting hardware to simplify installation.
How important is installation ease? For DIY replacements, a kit with mounting wings and nylon nuts can save time and reduce mounting errors. If you’re comfortable with wiring, a direct replacement motor with clear wiring instructions is often enough. If not, a pre-assembled kit with guide instructions is preferable.
What about noise and vibration? A well-balanced armature and quality bearings help minimize noise and vibration, improving comfort in living spaces above the garage. Open-housing designs may tolerate heat better but require good sealing around the attic space to prevent moisture ingress.
Are there compatibility caveats to note? Some listings reference multiple model numbers; always double-check the shaft size, mounting type, and electrical requirements. If your attic fan uses a non-standard housing, you may need a more flexible kit or a different motor model.
FAQ
- Q: Can I replace an attic fan motor myself?
A: Yes, many units are designed for DIY replacement using a compatible motor kit and mounting hardware. Follow the included installation guide and safely disconnect power before starting. - Q: What motor specifications matter most?
A: Voltage (120V typical), horsepower (1/10 HP), RPM (around 1100), and amperage (about 3.4A) affect performance and compatibility with existing wiring. - Q: Do replacement kits include mounting hardware?
A: Some kits include wings, nuts, and brackets; others are direct motors. If you need mounting hardware, choose a kit that lists included components. - Q: Is copper winding better than other windings?
A: Copper windings generally offer better electrical efficiency, durability, and heat tolerance, supporting longer motor life and steadier operation. - Q: How do I know if a motor fits my Lomanco or Broan model?
A: Check the model numbers listed in the product description, confirm diameter and shaft size, and verify mounting compatibility with your fan housing. - Q: Should I replace the blade when replacing the motor?
A: If airflow needs an upgrade or the blade is worn, pairing a motor with a compatible blade kit can improve performance, especially for higher-CFM requirements.