Singer Feed Drive Gear Set 383273AS

The clear/opaque plastic gears are stronger, more flexible and less likely to break than the black plastic. 

The 383273AS gear set replaces 174488 & 383273 feed drive gears 

Fits Singer sewing machines 1021, 1022, 1030, 1036, 1221, 1425N, 1482, 1485, 1486, 1488, 1490, 1492, 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, 290, 2950, 433, 437, 438, 500, 501, 502, 503, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533, 534, 538, 543, 553B, 554B, 560, 6100, 6102, 6104, 6105, 6106, 6110, 6112, 6114, 6115, 6116, 6120, 6124, 6125, 6126, 6130, 6136, 6146, 6152, 6156, 6174, 6184, 7004, 7100, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 714, 7146, 717 School, 7171, 7174, 7184, 7186, 719, 720, 724, 734, 737, 740, 750, 755, 756, 758, 760, 763, 764, 770, 771, 774, 775, 776, 778, 800, 8100, 813, 814, 830, 833, 834, 838, 844, 8734, 900 Futura, 900-3, 920-3, 925, 925-3, 935U, 9410, 9602, 9605, 9606, 9614, 9618, Athena 2000 (2000A)

Watch the video as well for help and instruction on installing them