The LOOPER (Part 20717050) is a genuine JACK original replacement part designed for JACK JK-798 C5 B5 series overlock, 798T, E4 and E4S series overlock machines. Manufactured to OEM specifications for precise fit and reliable performance.
Equivalent Part Numbers
JACK: 20717050
Compatible Machines
This part fits the following industrial sewing machine models:
JACK: JK-798 C5 B5 series overlock, 798T, E4, E4S, C3, C4, C5 series (Except H, M, A04, 435 model)
Technical Specifications
Brand
JACK
Part Number
20717050
Part Type
Loopers
Condition
New – OEM Original
Looking for a replacement looper for your JACK JK-798 C5 B5 series overlock or 798T 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.
