This gear set is compatible with Singer sewing machines and serves as a suitable replacement feed gear set. Made from high-quality materials, it is durable and designed for reliable performance. The set includes four essential gears for proper sewing machine operation: 174491 large feed shaft gear, 174488 long feed transmission gear, 163997 hook transmission gear, and 163328 vertical shaft top gear. The 174488 long feed transmission gear is compatible with Singer models: 1030, 1036, 1425, 1482, 1485, 1486, 1488, 1490, 1492, 2000, 2001, 2005, 2010, 2102, 2105, 2106, 2108, 2110, 2112, 2114, 2118, 2210, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2502, 2503, 2504, 2515, 2530, 2623, 2638, 2662, 2712, 2718, 2722, 2724, 2730, 2732, 50290, 501, 502, 503, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533, 534, 538, 543, 553B, 554B, 560, 6100, 6102, 6104, 6105, 6106, 720, 724, 734, 737, 740, 750, 755, 756, 758, 760, 763, 764, 770, 774, 775, 776, 778, 800, 8100, 813, 814, 830, 834, 900-3, 920-3, 925, 935U, 9410, and 9417. The 174491 large feed shaft gear is compatible with Singer models: 290, 495, 500, 501, 502, 503, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533, 534, 538, 543, 553B, 554B, 714, 720, 724, 734, 737, 740, 750, 755, 756, 758, 760, 763, 764, 770, 774, 775, 776, 778, 800, 813, 814, 830, 834, 838, 844, 900-3, 920-3, 925, 1021, 1022, 1030, 1036, 1221, 1425, 1482, 1485, 1486, 1488, 1490, 1492, 2000, 2001, 2005, 2010, 2102, 2105, 2106, 2108, 2110, 2112, 2114, 2118, 2210, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2502, 2503, 2504, 2515, 2530, 2623, 2638, 2662, 2712, 2718, 2722, 2724, 2730, 2732, 6102, 6104, 6105, 6106, 6110, 6120, 6130, 6136, 6146, 6152, 6156, 6174, 6184, 7100, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 7171, 7174, 935U, 9618. The 163997 hook transmission gear fits Singer models: 417, 502, 518, 620, 625, 628, 629, 630, 635, 636, 638, 639, 640, 646, 648, 649, 714, 717, 750, 755, 756, 758, 770, 774, 775, 776, 778, 834, 900-3, 920-3, 925, 935U, 1036, 1200, 2000, 2001, 2005, 6704, and 6705. Material: Plastic Weight: 75 grams