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JACK® 7.94BTR Original Rotary Hook - Part #809479
Genuine JACK® OEM • 7.94B Rotary Hook • Part #809479 • Industrial Lockstitch Sewing Machines
The JACK® 7.94BTR Rotary Hook (Part #809479) is a genuine OEM replacement part designed for precise fit, smooth operation, and reliable stitch formation in compatible industrial lockstitch sewing machines.
This original JACK® rotary hook is compatible with selected JACK®, Brother®, Consew®, JUKI® and SINGER® industrial sewing machines. It is an ideal replacement when the existing hook is worn, damaged, or no longer providing consistent thread pickup and stitch formation.
Part Number
| JACK® Part Number | 809479 |
| Hook Model | 7.94BTR |
Compatible Machines
- JACK®: 5550, F3, F4, 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
Key Features
- Genuine JACK® OEM Part: Original replacement rotary hook manufactured for compatible industrial sewing machines.
- Part #809479: Exact JACK® reference number for proper part identification.
- 7.94B Hook Model: Designed for compatible industrial lockstitch sewing machine applications.
- Precise Fit: Manufactured to OEM specifications for correct installation and dependable operation.
- Smooth Thread Formation: Designed to work with the needle thread to create consistent lockstitches.
- Reliable Sewing Performance: Helps maintain proper thread pickup and consistent stitch formation when correctly installed and adjusted.
- Professional Replacement: Ideal for replacing a worn, damaged, or malfunctioning rotary hook.
- Multi-Brand Compatibility: Compatible with selected JACK®, Brother®, Consew®, JUKI®, and SINGER® industrial sewing machines using the corresponding hook specification.
Technical Specifications
| Brand | JACK® |
| Part Number | 809479 |
| Hook Model | 7.94B |
| Part Type | Rotary Hook |
| Machine Type | Industrial Lockstitch Sewing Machines |
| Primary Function | Lockstitch Thread Formation & Thread Pickup |
| Compatible Brands | JACK®, Brother®, Consew®, JUKI®, SINGER® |
| Quantity | 1 Rotary Hook |
| Condition | New — Genuine OEM Original |
⚠️ Compatibility Notice
Always verify your sewing machine model and subclass before ordering. Part numbers and machine compatibility are provided for reference only. JMJ Sewing Machines is not responsible for purchases made without confirming compatibility with your specific machine. All replacement parts sales are final.
The JACK® 7.94B Rotary Hook #809479 is a genuine OEM replacement part for compatible JACK®, Brother®, Consew®, JUKI®, and SINGER® industrial lockstitch sewing machines, providing precise fit and dependable thread formation for professional sewing applications.
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