JACK 4021800100 Bobbin Case / JK-780 series
JACK 4021800100 Bobbin Case / JK-780 series is backordered and will ship as soon as it is back in stock.
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Description
Description
The Bobbin Case (Part #4021800100) is a genuine JACK original replacement part designed for JACK JKT-781, JKT-782, JKT-783 and JKT-1790 series button sewing machines, as well as Juki LBH-771, LBH-780 and Speedway SW781D, SW5780AS series models. Manufactured to OEM specifications for precise fit and reliable performance.
Equivalent Part Numbers
- JACK: 4021800100
Compatible Machines
This part fits the following industrial sewing machine models:
- JUKI: LBH-771, LBH-780, LBH-1790, N9
- SPEEDWAY: SW781D, SW5780AS
- JACK: JKT-781, JKT-782, JKT-783, JKT-1790, JK-T781 series
Technical Specifications
| Brand | JACK |
| Part Number | 4021800100 |
| Part Type | Bobbin Cases |
| Condition | New – OEM Original |
Looking for a replacement bobbin case for your JACK JKT-781 or JKT-782 button sewing machine? This genuine OEM part is also compatible with Juki LBH-771 and Speedway SW781D series machines. Shop with confidence — all parts ship from Miami, FL.
⚠️ Compatibility Notice: Always verify your machine model and subclass number before ordering. Part numbers and compatibility are provided as a reference only. Supra Sewing is not responsible for purchases made without confirming compatibility with your specific machine. All sales on replacement parts are final.
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