A.O. Smith Motor
1725 - 1425 rpm / 3/4 HP
(MOT) 20-3075B-4P

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A.O. Smith AC motor. Made for Liftmaster overhead doors. 5/8" x 2-3/8"L keyed shaft. 1725 - 1425 rpm, 208 - 230v / 460v, 3 phase, 2.6 / 1.3 amps, 50/60 Hz, 3/4 HP. 56Y frame. Reversible. Base or face mount. P/N: P56B72F21. 6 month warranty.
$290 each - $275 (3+), $250 (12+)