Ametek Lamb Motor - 5.7"/145mm 3-Stage Tangential Bypass Discharge # 140304, 117123-00This motor is a 5. 7", 240 volt, B B, 3 stage, Tangential bypass motor. You can use L 33423 12 for the carbon brush, L 217123 00 for the armature, L 317101 00 for the field, L 7076152 for the bottom bearing and L 707612 for the top bearing. Works with many central vacuum models like AirVac AV625, AstroVac SR 89, Beam 199ED, Beam 697B, Beam 697C, Beam 697D, Beam 697G, Beam 2500, Beam 2500B, Brute Optima Power Star 99193, Eureka E1801B, Eureka E1801C, M