New Premier Lamb Ametek 116758-11 motor is 2-stage 5.7 inch 120 volt. It is suggested you replace the motor gasket part #MO512 . Protect your motors from dust and dirt by using a motor filter. This prolongs the life of your motor and is a must for all motors. See our part #MO553 . Uses motor brushes part #MO514 . ACUSTEK technology is a Lamb Electric exclusive on its low noise-peripheral bypass discharge vacuum motors. Motor Specs Motor Type: Bypass Discharge: Acustek Bearings: Double Ball Bearing Sealed Vacuum: 91.5 inches Maximum Air Watts: 293 Maximum Air Flow: 103 CFM Motor Speed: 23 436 RPM