Singer Class 66 Drop-In Bobbins (10 Pack) #172336-S – Clear Bobbins for Singer Sewing Machines

Keep your stitches smooth, balanced, and consistent with Singer Class 66 Drop-In Bobbins (10 Pack) #172336-S — genuine Singer bobbins designed for reliable performance across a wide range of machines.

These bobbins are specifically engineered for Class 66 drop-in systems, delivering consistent thread tension and smooth rotation for clean, professional stitching. The clear plastic design allows you to monitor thread levels at a glance, helping prevent interruptions mid-project.

Perfect for everyday sewing, quilting, and repairs, this 10-pack ensures you always have extra bobbins ready to go.

Key Features:

• Genuine Singer Class 66 bobbins (#172336-S)
• 10-pack – ideal for multiple thread colors and backups
• Clear plastic design for easy thread visibility
• Smooth rotation for consistent tension and stitch quality
• Durable, reusable construction
• Designed for drop-in bobbin systems

Using the correct bobbin type is critical — incorrect bobbins can cause thread jams, tension issues, or machine damage.

Compatibility

Fits Singer Sewing Machines:

1022, 1247, 1263, 1280, 1280N, 1288, 1482, 1485, 1486, 1488, 1490, 1492, 1802, 1803, 1812, 1852, 1853, 1862, 1872 Merritt, 1873, 2102, 2105, 2106, 2108, 2110, 2112, 2114, 2118, 2210, 2302, 2303, 2304, 2315, 2330, 2404, 241, 242, 2430, 2440, 247, 247AP, 249, 2500, 2502, 2503, 2504, 2505, 2515, 2517 Merritt, 252, 2530, 2543, 2601, 2602, 2603, 2604, 2605, 2615, 2616, 2628, 263, 2630, 2643, 2712, 2718, 2722, 2724, 2730, 2732, 2818, 288 Fashion Mate, 2950, 3100, 3101, 3102, 3103, 3105, 3130, 3140, 3270, 327, 327K, 3314 Merritt, 3317 Merritt, 3343, 347K, 348, 353 Genie, 354 Genie, 358, 360 Fashion Mate, 413K, 413K13, 417, 418K Stylist, 4325, 4326, 4522, 4525 Merritt, 4526 Merritt, 4528 Merritt, 4530 Merritt, 4538, 4552, 4562, 457, 4572, 4610, 4620, 4622, 4624, 4825, 4828, 4830, 4832, 5017, 502, 5028, 503, 5040, 5050, 507, 509, 513 Stylist, 514, 5160, 518 Stylist, 522, 527, 533 Stylist, 534, 538, 5417, 543 Stylist, 5430, 547, 560 Diana, 5605, 5610, 563, 5705, 5710, 57817, 57820, 57825, 5802, 5805, 5806, 5808, 5810, 5812, 5814, 5816, 5817, 5818, 5820, 5825, 5830, 5838, 588, 5910, 5932, 6010, 6011, 6012, 6017, 6021 Merritt, 6038, 6102, 6104, 6105, 6106, 6110, 6112, 6114, 6115, 6116, 6120 Merritt, 6124, 6125, 6126, 6130, 6136, 6146, 6152, 6156, 6174, 6184, 6201, 6202, 6211, 6212, 6214, 6215, 6217, 6221 Merritt, 6233, 631, 6513, 6522, 6528, 6533, 6543, 6544 Stylist, 6548 Stylist, 6606, 6610, 6620, 66-6, 6800, 7004, 7015, 7021 Debutante, 7025, 7028, 7029, 7033, 7035, 7100 Series, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 714, 7146, 717 School, 7174, 7184, 7186, 719, 7211, 7212, 724, 734, 774, 776, 800, 8002, 8007, 8019, 8100, 8200, 8220, 830, 833, 834 Stylist, 844, 8500, 860, 8600, 8734, 8774, 9005, 9008, 9010, 9015, 9018, 9020, 9022, 9027, 9030, 9032, 9034, 9044, 9110, 9130, 9134, 9210, 9240, 93220, 9323, 93234, 9334, 935U, 9408, 9410, 9416, 9420, 9423, 9430, 9432, 9444, 9500, 9502, 9505, 9518, 9600, 9602, 9605, 9606, 9608, 9610, 9612, 9614, 9618, 964, 966, 968, 972, 974, 9802, 9803, 9805, 9806, 9808, 9810, 9812, 9814, 9816, 9818, 9824, 9828, 9832, 9836, 9936, CG500, CG550, CG590, CM17, CP17, DL17, DX14, DX-14C, FM17, FM19, FM22, HD102, HD105, HD110, SM-14

Fits White Sewing Machines:

8600, 8800

Alternate Part Numbers

172336001

FAQs

Q: What is a Class 66 bobbin?
A: It’s a drop-in style plastic bobbin used in many Singer machines for smooth, consistent stitching.

Q: How is this different from Class 15 bobbins?
A: Class 66 bobbins are slightly different in shape and are designed specifically for drop-in systems — using the wrong type can cause issues.

Q: Why use genuine Singer bobbins?
A: They ensure proper fit, smooth rotation, and consistent tension.

Q: When should I replace bobbins?
A: Replace them if they become cracked, warped, or worn to maintain stitch quality.