4x Hook Drive Transmission for Sewing Machine for Machine Accessories Description: Made of material, durable to use, perfect replacement feed gear set, this hook gear set fits machines. This 4-piece hook gear set is the perfect combination, all are essential parts for your sewing machine, including a large feed shaft gear 174491, a long feed gear 174488, a hook drive gear 163997, and a hook gear 163328. 174488 The long feed drive wheel can be replaced with the following models: (153490, 313920 and 422408). Suitable for Singer models: 1030, 1036, 1425, 1482, 1485, 1486, 1488, 1490, 1492, 2000, 2001, 2005, 2010, 2110, 2112, 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, 2950, 290, 500, 501, 502, 503, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533 etc . 174491 The large gear of the feed roller can be replaced with the following models:(177491, 422325). fits 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 etc. 163997 hook gear suitable for Singer model: 417, 502, 518, 620, 625, 628, 629, 630, 630E, 635, 636, 638, 639, 640E, 646, 646, 648, 648E, 649, 714, 717 School, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778, 834, 900-3, 920-3, 925, 935U, 1036, 1200, 2000, 2001, 2005, 6704 and 6705. Specifications: Material: Color: Black, White Size: 2 cm/0.79 inch, 2.3 cm/0.91 inch, 2.5 cm/0.98 inch, 3 cm/1.18 inch The package includes: 4 pieces of machine transmissions