4 SEASONS BLOWER MOTOR, FLANGED VENTED -- 3.25 in. motor diameter, 3.81 in. motor length, 0.31 in. shaft diameter, 1.44 in. shaft length, 12 V; Reverse rotation; Without wheel; Features 2 lead wires; QS9000 and ISO 9000 certified; Designed to meet or exceed OE design and performance; Magnet size and properties can be compared or even exceed OEM.