117478 Lamb Ametek Motor

  (4.9/5 Stars) - Overall Rating from 44 Users

Part # M-7478
Our Price:
In Stock

The Ametek Lamb 117478 also known as 117478-12 Motor for central vacuums, blowers, and similar applications replaces all versions of the 117478 and 117478-12 motor used in all types of industries spanning many decades. Older model 117478-12 motors may not be marked properly with the motor number and some may have 11-7478-12 or just a 7478-12. We do not recommend rebuilding these types of motors due to cost and technical precision for proper performance and longevity.

Specifications for model 117478-12 Lamb Ametek Motor:

  • Genuine & New - Not Rebuilt - Stamped and Dated
  • Ships the day ordered, if not the next business day
  • 2-Stage, Tangential Bypass Motor, Ball Bearings
  • Diameter: 7.2 inch, Height: 7.75 inch
  • Voltage: 110-120, Amps 13.5, Hz: 50/60
  • Waterlift: 120", CFM: 115.8, AirWatts: 549
  • Warranty: One Year Residential, 30-Day Commercial
  • Guarantee: 100% Satisfaction 30-day Full Refund

Maintenance: No grease, oil, or tightening needed on the 117478-12 motor. The only recommended preventative maintenance is changing the motor brushes after several years or around the 300-500 hour half-life. The high quality of Ametek motors is recognized worldwide.

Instructions: How to Remove and Replace Your Central Vacuum Motor

FREE Shipping to 48 States. Excellent Shipping Options to Canada.

This item ships free!  No tax except for in California
100% Genuine Lamb Ametek Motor

Motor 117478 is a replacement motor for:
  • AstroVac MK-XVIII
  • Beam 310
  • Beam 387
  • Beam 387A
  • Beam 875
  • Beam 2875
  • Budd 9915
  • Centra-Clean CP8000
  • Drainvac DV1R-11
  • Easy-Flo (including EF models)
  • Easy-Flo 1425
  • Easy-Flo 1450
  • Easy-Flo 1525
  • Easy-Flo 1550
  • Eureka 3391D
  • Eureka CV3391A
  • Eureka CV3391C
  • Eureka CVS7000S
  • Eureka CVS7000SA
  • Eureka CV2104A
  • Eureka CV2104B
  • Frigidaire FGCV550SQ
  • Galaxie GA-100 (taller)
  • Honeywell H802
  • Honeywell H802A
  • Omar's Housekeeper 2000
  • Silent Master SP2
  • Ultra-Air-Care (all models)
  • & more!

Top Customer Reviews

(5/5 Stars)

June 09, 2020

Just what I ordered, fast delivery

- Arizona
(5/5 Stars)

March 22, 2020
Comments not provided.
- Indiana
(5/5 Stars)

February 13, 2020

Great motor, direct replacement for my Beam House vacuum. Looks and build exactly like the original motor that had a bad bearing. This is a complete replacement, the only thing to note is you will need to attach new wire terminals onto the new wires for a direct plug into your Beam Vacuum.

- Georgia
(5/5 Stars)

December 05, 2019

Arrived timely. Fit perfectly, easy to install, and works great. So much quieter than the old one.

- Arizona
(5/5 Stars)

August 16, 2019


- New Hampshire
(5/5 Stars)

May 28, 2019

The motor arrived within a few days and installation was very easy. Everything is working great and my 20-year-old Beam Central Vacuum is like new again.

- Pennsylvania
(5/5 Stars)

May 22, 2019

The Lamb Ametek Motor I ordered for my home's Beam Serenity Plus central vacuum system, arrived on time and functioned and fit perfectly. I would reccomend Central Vacuum Online parts and service for help in repairing all home vacuum system..

- California
(5/5 Stars)

April 04, 2019

My last motor lasted exactly 20 years. I?d be happy to get the same out of this one.

Easy to install. Saved me a little $$$ ($100-$300 depending on where I buy it)

Even seems a little quieter.

Glad I researched and found you guys on-line.


- Utah
(5/5 Stars)

March 18, 2019

Best price I could find on a replacement motor for our Central Vac. The motor was exactly the same as the original.

Vac works fine now.

- Michigan
(5/5 Stars)

March 17, 2019

Received on time. Easy to install. Humming along. Thanks. Will order parts again when needed from you.

- Michigan
(5/5 Stars)

February 08, 2019

Product fit as it should and works great!

- Wisconsin
(5/5 Stars)

January 22, 2019

Good service got exactly what I needed to repair my central vacuum system.

- Arizona
(5/5 Stars)

September 12, 2018
Comments not provided.
- Indiana
(5/5 Stars)

March 25, 2018

Our central vac has never had this much suction. Simple installation and we have a functional vacuum again

- Wisconsin
(5/5 Stars)

August 28, 2017

Easy installation with basic tools. Quieter than the original. Great suction. Easy to verify correct product using model number. Thanks!

(5/5 Stars)

February 26, 2017
Comments not provided.
- California
(5/5 Stars)

December 29, 2016

perfect fit. works great and quiet . fast shipment

- Utah
(5/5 Stars)

October 27, 2016
Comments not provided.
- Massachusetts
(5/5 Stars)

October 27, 2016

all is great with follow up also...thank you!

- Oregon
(5/5 Stars)

May 11, 2016

I received this motor and it has renewed our central vac. Very pleased with the service with quick dilivery. Excellent price.

I hope to not need another, but Central Vac would be my place to shop

Thank you


Ask a Question

Where is this motor manfactured?
Question: Re117478 Lamb-Ametek Motor @$148.00 Is this made in the USA? Or is it made in China. What is the guarantee period? Art kees
CVO's Answer:

Lamb Ametek 117478 is manufactured in Mexico. All of our motors carry a 1-year residential and 90-day commercial warranty.

Question: I have a vacuflow 560. Can I replace the 7549 with this motor and get better performance?
CVO's Answer:

Hello and thank you for contacting Central Vacuum Online my name is Ally and I am happy to assist you today.

We do not have any alternate motors listed for your model #. There are several variables to consider when choosing a motor for your unit including height, diameter, amperage. You will want to contact the manufacturer direct for any alternate motors they recommend. We recommend using the original motor in this unit. Thank you. 

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