Broan 503 Replacement Vent Fan Motor # 99080355, 1.5 amps, 3000 RPM, 120V C-Frame Motor Shaft 7/32" x 1 1/4"; Rotation CW Shaft End 1 1/8" stack; 2.5" lead with 2 prong plug 2 mounting studs on back 1 Year Manufacture Warranty