Overview Product Description Replacement For Gemini GC/GN 620, 640 Vent Fans 1/11 HP 1500 RPM 4.6 AMPS 2 Speed 115 Volts 60hz. 4.35" Diameter Motor - Shaft: 1/2" Diameter x 6.239" with Flat on Shaft Motor 3" thick without shaft; CW rotation facing the shaft 3 mounting brackets, measure 7.125" OC Cross Referencs: 615057, A0416B2568, A0416B3807, 7108-7007, PACKARD 90620 Product Videos Custom Field Product Reviews