Upgrade Model 8814 8663 8673 110CFM Fan Motor - Quiet Replacement

In this review of the Upgrade Model 8814 8663 8673 fan motor, the bottom line is simple: this is a straightforward, cost-effective replacement for 9' x 9' bathroom extractor fans that need a reliable motor swap. Built with an upgraded pure copper motor and offered with a three-year manufacturer defect replacement service, it is aimed at homeowners or electricians who want to restore an existing Nutone-compatible unit without buying an entire fan. The single biggest reason to buy is the improved motor longevity and like-for-like fit for many older Nutone 9' x 9' models.

Key Features

• Compatibility: Fits many Nutone-style units with a 9' x 9' blade, making it a practical repair option for older bathroom fans.
• Upgraded motor: The pure copper motor replaces older aluminum-plated designs for more stable performance and longer life.
• Performance: Rated at 110CFM and 3.5 sones, it delivers adequate airflow with a moderate noise level suitable for most small bathrooms.
• Easy replacement: Designed for a quick swap that typically takes about 10 minutes and does not require specialized tools.
• Cost saving: Replacing the motor module instead of the whole fan reduces expense while restoring original function.
• Warranty support: A 3-year manufacturer defect replacement policy provides added confidence in purchase.

Who It's For

This motor is for homeowners, landlords, and maintenance technicians who need a like-for-like replacement for Nutone-compatible 9' x 9' fans such as models 8814R, 8663RP and many variants listed by the manufacturer. It suits anyone who values a quick installation and wants to extend the life of an existing exhaust unit at a lower cost than replacing the full fixture.

Those who should look elsewhere include users who want a major upgrade in noise performance or higher airflow than 110CFM; if you need a quieter, higher-capacity or feature-rich modern bathroom fan, a complete new unit will be a better choice.

Pros & Cons

Pros

• Direct compatibility with many Nutone 9' x 9' models, enabling straightforward replacements.
• Upgraded pure copper motor offers improved durability compared with older plated designs.
• Fast, simple installation that typically takes about 10 minutes and saves replacement cost.
• Three-year manufacturer defect replacement gives extra assurance after purchase.

Cons

• Some customers report occasional wobble or improper spinning, which may indicate fit or balancing issues in a few units.
• Noise at 3.5 sones is moderate; not the quietest option available for very noise-sensitive spaces.

Specifications

Model	8814 / 8663 / 8673 compatible
Airflow	110 CFM
Noise Level	3.5 sones
Power	37 W AC
Frequency	60 Hz
Mounting Blade Size	9' x 9'
Warranty	3-year manufacturer defect replacement

Our Verdict

The Upgrade Model 8814 8663 8673 motor is a sensible, value-minded choice for repairing older Nutone-compatible 9' x 9' bathroom fans. It restores airflow effectively, uses a more durable pure copper motor, and keeps replacement cost and installation time low. For those needing a moderate 110CFM fan replacement with a reliable warranty, this motor is a practical option; those seeking ultra-quiet or higher-capacity solutions should consider a full replacement fan.

Frequently Asked Questions

Will this motor fit my Nutone 9' x 9' fan?
If your fan uses a 9' x 9' blade and matches the listed compatible models such as 8814R or 8663RP variants, this motor is designed to be interchangeable.

How difficult is installation?
Installation is typically simple and quick; many users report average swap times of about 10 minutes and no special tools are required for the motor replacement.

What warranty is included?
The manufacturer offers a 3-year replacement service for defects not caused by human factors, which covers free repair or replacement within that period.