AMETEK Lamb 117123 Vacuum Motor for MD Central Vacuum – Part# 199X

AMETEK Lamb 117123 Vacuum Motor for MD Central Vacuum – Part# 199X

Available: In Stock
$187.40
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Quick Summary

The 117123 vacuum motor is a new AMETEK Lamb replacement motor used in some central vacuum brands and models, including select MD central vacuum units. It is a 220-240 volt, 3-stage motor that replaces motor 116859.

Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.

Quick Highlights

  • New motor, not rebuilt
  • 220-240 volt operation
  • 3-stage design
  • Replaces 116859 motor
  • Fits select MD central vacuum models
  • Part number 199X

Product Overview

This 117123 vacuum motor is an AMETEK Lamb original motor for certain central vacuum systems and blowers. It is listed for select MD central vacuum power units and is sold as a brand new motor, not a rebuilt one.

The motor is rated at 220-240 volts and uses a 3-stage design. According to the product record, it may also be marked as 7123 or 11-7123, and it replaces the 116859 motor.

Common signs that a motor replacement may be needed include a mini breaker popping, an electrical smell, excessive blue sparks from the motor top, a clicking sound, or a motor that shuts down on its own and works again later. If there is no click, the relay may need replacement instead of the motor.


Key Features

  • New Replacement Motor: This is a brand new motor, not a rebuilt unit.
  • AMETEK Lamb Original: The 117123 is an original AMETEK Lamb motor.
  • 220-240 Volt Motor: This motor is designed for 220-240 volt applications at 50-60 hertz.
  • 3-Stage Design: The motor uses a 3-stage fan configuration as listed in the product specifications.
  • Replaces 116859: This motor is listed as a replacement for motor 116859.
  • Brushes Can Be Replaced: The carbon motor brushes on this motor can be replaced before the motor is at the end of its life.

MD Compatibility

This part is listed as the match for these MD central vacuum power units:

  • MD G23 (240V)
  • MD J (240V)
  • MD M850 (240V)
  • MD M850H2 (240V)
  • MD M965H2 (240V)

Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.


Technical Specifications

Specification Details
Brand AMETEK Lamb
Part Number 199X
Motor Number 117123
Voltage 220-240 volt
Hertz 50-60
Fan Stages 3
Bottom Diameter 5.7 inches
Height 8 inches
Bolt Height 3 inches
Waterlift 137.1 inches
CFM 95.1
AirWatts 448
Amps 6.8
Replaces 116859 motor
Fits MD Models MD G23 (240V), MD J (240V), MD M850 (240V), MD M850H2 (240V), MD M965H2 (240V)
Also Used In AirMaster, Modern Day, Flo-Master, Beam and Nutone
Markings You May See 7123 or 11-7123
Estimated Motor Life 900-1,200 hours
Authorized Dealer Ace Vacuums

Best For

  • Replacing a failed 117123 motor in an MD central vacuum
  • 240V MD central vacuum models listed in the fit information
  • Replacing motor 116859
  • Repairing a unit with common motor failure symptoms

Not Ideal For

  • Not for systems outside the listed voltage range
  • Not for buyers who have not confirmed their motor number or MD model
  • May not solve the issue if the relay is the actual problem

Why Buy from Ace Vacuums

When you purchase from Ace Vacuums, you receive:

  • Central vacuum parts matched to your MD system
  • Help choosing the right hose, tools and inlet parts
  • Knowledgeable support before and after the sale
  • Shipping or pickup at our Fairfax and Leesburg showrooms

Available Online & In-Store

The AMETEK Lamb 117123 Vacuum Motor for MD Central Vacuum is available online and in-store through Ace Vacuums.

Visit Our Showrooms

  • Fairfax, VA: 11110 Main St, Fairfax, VA 22030
  • Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176

Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).


Quick Summary

The 117123 vacuum motor is a new AMETEK Lamb replacement motor used in some central vacuum brands and models, including select MD central vacuum units. It is a 220-240 volt, 3-stage motor that replaces motor 116859.

Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.

Quick Highlights

  • New motor, not rebuilt
  • 220-240 volt operation
  • 3-stage design
  • Replaces 116859 motor
  • Fits select MD central vacuum models
  • Part number 199X

Product Overview

This 117123 vacuum motor is an AMETEK Lamb original motor for certain central vacuum systems and blowers. It is listed for select MD central vacuum power units and is sold as a brand new motor, not a rebuilt one.

The motor is rated at 220-240 volts and uses a 3-stage design. According to the product record, it may also be marked as 7123 or 11-7123, and it replaces the 116859 motor.

Common signs that a motor replacement may be needed include a mini breaker popping, an electrical smell, excessive blue sparks from the motor top, a clicking sound, or a motor that shuts down on its own and works again later. If there is no click, the relay may need replacement instead of the motor.


Key Features

  • New Replacement Motor: This is a brand new motor, not a rebuilt unit.
  • AMETEK Lamb Original: The 117123 is an original AMETEK Lamb motor.
  • 220-240 Volt Motor: This motor is designed for 220-240 volt applications at 50-60 hertz.
  • 3-Stage Design: The motor uses a 3-stage fan configuration as listed in the product specifications.
  • Replaces 116859: This motor is listed as a replacement for motor 116859.
  • Brushes Can Be Replaced: The carbon motor brushes on this motor can be replaced before the motor is at the end of its life.

MD Compatibility

This part is listed as the match for these MD central vacuum power units:

  • MD G23 (240V)
  • MD J (240V)
  • MD M850 (240V)
  • MD M850H2 (240V)
  • MD M965H2 (240V)

Check the model number on your power unit label before ordering. Our team can confirm the match if you are unsure.


Technical Specifications

Specification Details
Brand AMETEK Lamb
Part Number 199X
Motor Number 117123
Voltage 220-240 volt
Hertz 50-60
Fan Stages 3
Bottom Diameter 5.7 inches
Height 8 inches
Bolt Height 3 inches
Waterlift 137.1 inches
CFM 95.1
AirWatts 448
Amps 6.8
Replaces 116859 motor
Fits MD Models MD G23 (240V), MD J (240V), MD M850 (240V), MD M850H2 (240V), MD M965H2 (240V)
Also Used In AirMaster, Modern Day, Flo-Master, Beam and Nutone
Markings You May See 7123 or 11-7123
Estimated Motor Life 900-1,200 hours
Authorized Dealer Ace Vacuums

Best For

  • Replacing a failed 117123 motor in an MD central vacuum
  • 240V MD central vacuum models listed in the fit information
  • Replacing motor 116859
  • Repairing a unit with common motor failure symptoms

Not Ideal For

  • Not for systems outside the listed voltage range
  • Not for buyers who have not confirmed their motor number or MD model
  • May not solve the issue if the relay is the actual problem

Why Buy from Ace Vacuums

When you purchase from Ace Vacuums, you receive:

  • Central vacuum parts matched to your MD system
  • Help choosing the right hose, tools and inlet parts
  • Knowledgeable support before and after the sale
  • Shipping or pickup at our Fairfax and Leesburg showrooms

Available Online & In-Store

The AMETEK Lamb 117123 Vacuum Motor for MD Central Vacuum is available online and in-store through Ace Vacuums.

Visit Our Showrooms

  • Fairfax, VA: 11110 Main St, Fairfax, VA 22030
  • Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176

Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).


Frequently Asked Questions

Will this fit my MD central vacuum?

It is listed for MD G23 (240V), MD J (240V), MD M850 (240V), MD M850H2 (240V), and MD M965H2 (240V). If you are not sure, confirm your MD central vacuum model and existing motor number before ordering.

Is this motor new or rebuilt?

It is a brand new motor, not a rebuilt one.

What motor does this replace?

This 117123 motor replaces the 116859 motor.

What voltage is this motor?

This motor is rated for 220-240 volts and 50-60 hertz.

Are there other numbers printed on this motor?

Yes. The product record notes that the motor may say 7123 or 11-7123.

What are common signs that the motor needs replacement?

Listed signs include a mini breaker popping, electrical smell, excessive blue sparks from the top of the motor, hearing only a click, or the motor shutting down on its own and working again later.

If I do not hear a click, is the motor bad?

Not necessarily. The record says that if you do not hear a click, the relay most likely needs to be replaced and the motor may be fine.

Can the brushes be replaced on this motor?

Yes. The 117123 AMETEK Lamb motor has carbon motor brushes that can be replaced.

Visit Our Showrooms

Check real-time traffic and travel time from your location in VA, DC, or MD.

📍 AceVacuums Fairfax (DMV Hub)

Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
Best for: Bethesda, Potomac, Arlington, NW Washington D.C.

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📍 AceVacuums Leesburg

Address: 300 Fort Evans Rd NE, Suite 104, Leesburg, VA 20176
Landmark: Next to Home Depot in Leesburg
Best for: Ashburn, Sterling, Frederick MD, Loudoun County

Get Real-Time Traffic & Directions

Shipping, Return & Refund Policy

Shipping Policy

In-stock merchandise generally ships from our Leesburg, Virginia location within 3–5 business days. Processing time is separate from carrier transit time and is not a guaranteed delivery date. Weekends and holidays can affect timing. Special-order, backordered or unavailable items may take longer; contact us to confirm timing before purchase when a deadline matters.

Shipping options and charges are shown at checkout. After dispatch, follow the carrier's tracking updates. Weather, carrier delays, order verification and inventory confirmation may affect delivery. Inspect packages promptly and retain packaging if there is damage or an incorrect or missing item.

Returns and refunds

Eligible unused items have a 30-calendar-day return request window for refunds or exchanges, measured from delivery or in-store purchase. Return authorization is required. Final-sale exclusions, the 15% restocking fee for change-of-mind returns and shipping responsibilities are explained in our Return and Refund Policy. That policy is the governing source for return eligibility and fees.

For shipping or return help, email sales@acevacuums.com or call 703-997-9292.


30-Day Returns, Refunds and Exchanges

Updated September 27, 2026. Request a return for an eligible unused item within 30 calendar days of delivery (or purchase for items collected in store). Eligible returns may be refunded to the original payment method or exchanged, subject to availability. The same 30-day request window applies to both refunds and exchanges; there is no separate seven-day or 15-day refund deadline.

Eligibility and authorization

Items must be unused, clean, complete and in their original packaging with all accessories, manuals and proof of purchase. Contact sales@acevacuums.com or 703-997-9292 before sending anything back. Include your order number, item and reason for return. We will confirm eligibility, charges and return instructions. Unapproved or cash-on-delivery returns are not accepted.

Fees and shipping

For an approved change-of-mind return, a 15% restocking fee applies to the returned merchandise price. Original shipping charges are not refundable and the customer pays return shipping. These charges do not apply to an approved return caused by our shipping error or a damaged/defective item claim. Contact us first so we can arrange the appropriate remedy and shipping instructions. Do not assume a prepaid label is included.

Final-sale and excluded items

Air purifiers; discounted, clearance, trade-in, holiday-sale and price-matched purchases; gift cards; custom or special-order products; electrical parts; used or installed items; opened cleaning solutions; and used bags, filters, belts or other consumables are not eligible for change-of-mind returns. Other items clearly marked final sale at purchase are also excluded. An opened box alone does not disqualify an otherwise eligible unused, complete item, but consumables and cleaning solutions must remain unopened.

Damaged, defective, incorrect or missing items; recalls

Inspect your order promptly and contact us as soon as you discover a problem, with your order number and photos where helpful. Keep the packaging. Change-of-mind exclusions and deadlines do not remove applicable defect, warranty, recall or statutory rights. Warranty coverage requires evaluation under the manufacturer's terms; dealer status does not guarantee free repair. Recalled products must follow the manufacturer's recall process.

Refund timing and exchanges

After we receive and inspect the return, we will notify you of approval or the reason it cannot be accepted. Approved refunds are issued to the original payment method within 10 business days of approval; your bank may take additional time to post them. Contact us if more than 15 business days have passed since approval. Exchanges require authorization and replacement availability; any price difference and applicable charges will be explained before processing.

Applicable rights and earlier purchases

This policy applies to online and in-store purchases. We will honor more favorable written return terms provided with an earlier purchase. Applicable consumer rights remain unaffected. Where the European Union 14-day cancellation right applies, customers may cancel or return eligible orders within 14 days of receipt, subject to applicable legal exceptions, without giving a reason.


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