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JACK 20717006 Lower Looper / E4S-3 - E4S-5
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- New
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JACK 20717006 Lower Looper / E4S-3 - E4S-5 is backordered and will ship as soon as it is back in stock.
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Fast free shipping from our Miami warehouse. It's a portable unit — arrives boxed and ready, no table assembly involved.
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JACK 20717006 Lower Looper / E4S-3 - E4S-5
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Description
Description
Overlock knife/blade compatible across the modern overlock family (JACK E4S/E5/C-series, Speedway SW6/SW7, and equivalents). Knives cross thread counts within the family.
The Lower Looper (Part #20717006) is a genuine JACK original replacement part designed for JACK E4S-3 and E4S-5 series overlock machines. Manufactured to OEM specifications for precise fit and reliable performance.
Equivalent Part Numbers
- JACK: 20717006
Compatible Machines
This part fits the following industrial sewing machine models:
- JACK: E4S-3, E4S-5, E4S-3-32R2, E4S-5-03, C7-5, C7-3-02, E4S-3-02, E5-3-32R2, E5-5-03
- SPEEDWAY: SW7-5D, SW6-3D, SW6-3D-32R, SW6-5D
- JUKI: MO-6714, MO-6716, MO-6814, MO-6816
- SIRUBA: 747, 757
- PEGASUS: M700, EX5200
- BROTHER: 3034
Technical Specifications
| Brand | JACK |
| Part Number | 20717006 |
| Part Type | Loopers |
| Condition | New – OEM Original |
Looking for a replacement lower looper for your JACK E4S-3 or E4S-5 overlock machine? This genuine OEM part ensures reliable performance and precise fit. 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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