The W4D looper (Part 3011700900) is a genuine JACK original replacement part designed for JACK W4D, JK-W4D W5 coverstitch, W4 and W4S series coverstitch machines, as well as Pegasus W562 and Speedway SW 562 SW562 -UTE series models. Manufactured to OEM specifications for precise fit and reliable performance.
Equivalent Part Numbers
JACK: 3011700900
Compatible Machines
This part fits the following industrial sewing machine models:
JACK: W4D, JK-W4D W5 coverstitch, W4, W4S series
PEGASUS: W562
SPEEDWAY: SW 562 SW562 -UTE
Technical Specifications
Brand
JACK
Part Number
3011700900
Part Type
Loopers
Condition
New – OEM Original
Looking for a replacement w4d looper for your JACK W4D or JK-W4D W5 coverstitch coverstitch machine? This genuine OEM part is also compatible with Pegasus W562 and Speedway SW 562 SW562 -UTE 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.
