This set of 4 drive gears is made of high-quality, durable plastic. Suitable for Singer sewing machines, it serves as an ideal replacement set. The gear set includes: - 174491 Large Feed Shaft - 174488 Long Feed Gear - 163997 Hook Feed Gear - 163328 Feed Shaft Vertical Feed Long Feed Gear 174488 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, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2502, 2503, 2504, 2515, 2530, 2623, 2638, 2662, 2712, 2718, 2722, 2724, 2730, 2732. Large Transmission Gear 174491 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. Hook Feed Gear 163997 is compatible with Singer models: 417, 502, 518, 620, 625, 628, 629, 630, 630E, 635, 636, 638, 639, 640E, 646, 648, 648E, 649, 714, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778, 834, 900-3, 920-3, 925, 935U, 1036, 12000, 20500, 6704, 6705.