Compatible with for PFAFF brand Sewing Machines, including:1051, 1053, 1181, 1183, 1194, 1242, 1245, 1246, 1293, 1294, 1295, 1296, 1422, 1425, 1426, 1521, 242, 2438, 294, 333, 333-712-02, 333-712-03, 335, 3519-3-12, 3566-3-02, 3588-04-020, 3704-2-02, 3704-2-03, 3713-2-01, 3715-2-01, 3715-2-02, 3734-2-01, 3734-2-21, 3822-1-32, 3822-1-34, 3822-1-42, 3827-2-24, 3827-2-33, 3827-2-34, 3834-14-21, 3834-4-11, 422 Hobby, 481, 481-G, 483, 483-G, 471,491, 571,574, 591,9083, 918U, 938-U, 939U