Lamb Ametek 114787 3-stage 7.5″ vacuum motor, 120 volt.


Warranty: 30 Days

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Mfr. Model #: 114787 SKU: MTR136 Categories: ,
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New Lamb Ametek 114787 vacuum motor is 3-stage, 7.5 inch, 120 volt.


For the maximum protection of your motor we HIGHLY recommend using our exclusive Filtered Motor Gasket, part #MTR1500. Our Filtered Motor Gasket is the only one of its kind and only available from Central Vacuum Factory! It is specially designed by our engineers to provide your motor with years of trouble free service by filtering out dust and dirt BEFORE they reach your motor and damaging it! The filtered motor gasket fits flush and is as easy to apply as a regular gasket and will not add any height to your motor during mounting!

For a standard motor gasket purchase part #MTR511.

Uses complete motor brushes and holders part #MTR516.

For carbon and spring motor brushes replacements use our part #MTR528.


If you would rather rebuild your 114787 motor at a fraction of the cost of a new motor see our Armature Rebuild Kit #MTR1322.

Motor Specs

  • Motor Type: Bypass
  • Discharge: Peripheral
  • Bearings: Double Ball Bearing
  • Sealed Vacuum: 88.1 inches
  • Maximum Air Watts: 359
  • Maximum Air Flow: 126.4 CFM
  • Maximum Amps: 11.3
  • Motor Speed: 11,960 RPM

Installation note:

Over-tightening of the mounting screws may cause the fan casing to push into the fan blades and may damage the fans.  This situation is not covered under the Motor Warranty Program and will not be approved if submitted.  If motor is turned in under warranty and is found to have the type of damage explained above, the warranty will be denied.  When mounting your new motor, in most cases a touch BEYOND “finger tight” is all that is required to mount and seat the motor sufficiently.


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