620240 Nordyne 3.25" Replacement Booster & Burner Motor 1/30HP 115V 

• Horsepower: 1/30 HP

• Voltage: 115V

• RPM: 3000 RPM (standard for Nordyne burner motors)

• Rotation: CW (clockwise)

• Motor Diameter: 3.25" (body diameter listed as 3‑¼")

• Motor Length: 4.75" (4‑¾")

• Shaft: ¼" diameter × 1.25" long

• Mounting: 3 side‑mounted bolts + 2 mounting screws included

• Weight: ~4 lbs 

Nordyne/Miller 115V universal replacement burner motor with 120V centrifugal switch, 3000 RPM, 1/30hp, 1.5 amps, CW rotation.

This motor is used as both a combustion burner motor and a booster motor in Nordyne/Intertherm/Miller gas furnace systems.

Used In:

• MC‑8, MC‑8‑C gas burners

• MGC‑60‑1, MGC‑80, MGC‑80‑1, MGC‑100, MGC‑100‑1 furnaces

• Some Duo‑Therm furnaces as booster motors

• These numbers all cross‑reference to 620240:

  • 304175000

  • 305662000

  • 1175‑8‑47226

  • Duo‑Therm H‑9171

  • Duo‑Therm 3‑9171

Motor measures 6-3/8" long x 3.3" diameter. Shaft measures 1.50" long x 1/4" or 5/16" diameter with enclosed adapter sleeve. 3 mounting bolts are secured to the side of motor. Also includes 2 mounting screws for the end which are 2-7/8" apart. Black wires are for motor, green is ground, red wires are for centrifugal switch. Switch not sold separately. Used in MC8, MC-8, MC-8-C gas burners found in MGC-80, MGC-100, MGC-60-1, MGC-80-1 & MGC-100-1 furnaces. Also used as a booster motor in some Duotherm furnaces.  Please double-check that your old booster motor does NOT have a 24V centrifugal switch as this motor will not work in that case.  

Inducer motor replaces 304175000 and 305662000. Also replaces Duo-Therm H-9171 & 3-9171.  Replaces Nordyne 620161, 620240, 6202400, Fasco 7121-1631, 7121-5334, Packard 82357   Also known as an AO Smith 357 motor (or U-357, U357), JA1M069, JA1M744NV and S88-681.