The BOBBIN (Part 155231011) is a genuine JACK original replacement part designed for JACK S5/S7, S5, S7 and JK-6671 series industrial sewing machines, as well as Speedway 810/820/818D/591Q/9910/9920, Siruba P717/P727/R718/R728 and Consew 228R, and other post-bed machines using this series models. Manufactured to OEM specifications for precise fit and reliable performance.
Equivalent Part Numbers
JACK: 155231011
Compatible Machines
This part fits the following industrial sewing machine models:
JACK: S5/S7, S5, S7, JK-6671
SPEEDWAY: 810/820/818D/591Q/9910/9920
SIRUBA: P717/P727/R718/R728
CONSEW: 228R, and other post-bed machines using this
Technical Specifications
Brand
JACK
Part Number
155231011
Part Type
Bobbins
Condition
New – OEM Original
Looking for a replacement bobbin for your JACK S5/S7 or S5 industrial sewing machine? This genuine OEM part is also compatible with Speedway 810/820/818D/591Q/9910/9920, Siruba P717/P727/R718/R728 and Consew 228R 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.
