Genuine Bobbin Thread Tension Assembly 40210742 for Juki LK-1900S-SS and Juki LK-1900S Sewing Machines
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Genuine Bobbin Thread Tension Assembly 40210742 for Juki LK-1900S-SS and LK-1900S Sewing Machines
The Genuine 40210742 Bobbin Thread Tension Assembly is an original replacement part designed for Juki LK-1900S-SS and Juki LK-1900S sewing machines. This important component controls the tension of the bobbin thread, helping maintain balanced stitching and smooth thread flow during sewing.
Made to meet Juki’s original manufacturing standards, this tension assembly ensures reliable performance, precise thread control, and long-lasting durability. Proper bobbin thread tension is essential for achieving neat, consistent stitches and preventing thread issues during operation.
Replacing a worn or damaged bobbin thread tension assembly with the 40210742 helps restore your machine’s performance and keeps it running efficiently in industrial sewing environments.
Key Features:
Genuine 40210742 Juki replacement part
Designed to regulate bobbin thread tension
Ensures smooth thread movement and consistent stitch quality
Durable construction for long service life
Ideal for industrial sewing machine maintenance and repair
Compatible Machines:
Juki LK-1900S-SS Sewing Machine
Juki LK-1900S Sewing Machine
The Genuine 40210742 Bobbin Thread Tension Assembly is a reliable choice for maintaining the performance, accuracy, and efficiency of your Juki sewing machine.
✔ Free shipping on orders over $99
✔ Ships from our USA (Georgia) office when in stock
✔ Weekly restocking from Japan, China, Bangladesh, and Turkey warehouses
✔ 3–7 business days handling time
✔ Compatible with multiple industrial sewing machines
✔ Carefully inspected before shipment
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⚠️ Please confirm your machine model before ordering