Jack 800257 BOBBIN CASE

The BOBBIN CASE (Part 800257) is a genuine JACK original replacement part designed for JACK 5550 F3, F5 and F6 series lockstitch machines, as well as Brother B714, B735 and Consew 210, 218 series models. Manufactured to OEM specifications for precise fit and reliable performance.

Equivalent Part Numbers

• JACK: 800257
• JUKI: B1837-012-0a0

Compatible Machines

This part fits the following industrial sewing machine models:

• JACK: 5550 F3, F5, F6
• BROTHER: B714, B735
• CONSEW: 210, 218, 219, 220, 230, 2230, 231, 290310, 7360, CN2230R
• JUKI: DDL-127, DDL-227, DDL-227-A, DDL-227-M, DDL-227-W, DDL-541, DDL-541N, DDL-542, DDL-543, DDL-545, DDL-545W, DDL-552, DDL-552A, DDL-552W, DDL-553
• SINGER: 188K, 191, 241, 241-11, 241-12, 241-13, 245, 251, 281, 281-83, 291U, 366K, 391U, 400W, 402W

Technical Specifications

Looking for a replacement bobbin case for your JACK 5550 F3 or F5 lockstitch machine? This genuine OEM part is also compatible with Brother B714, Consew 210 and Juki DDL-127 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.