Genuine Juki Thread Tension Knob (Part #131-38409). This authentic yellow adjustment knob is an essential OEM component, designed for high visibility and precise tension control on your industrial sewing machine.

Streamlined Tension Control
In high-volume production, color-coding is key to reducing operator error. The 131-38409 knob features a bright yellow finish, typically used to identify a specific thread path—such as a looper or needle thread—allowing for instant recognition and adjustment during operation.

Why Choose the Genuine 131-38409 Knob?
Color-Coded Efficiency: The high-visibility yellow helps operators quickly locate the correct tension assembly, minimizing mistakes during multi-thread setups.

Precision Threading: Specifically molded to fit Juki tension posts, ensuring a smooth, "no-slip" adjustment that won't vibrate loose at high speeds.

Ergonomic Design: Features a textured grip for easy micro-adjustments, allowing for tactile precision even in fast-paced environments.

Industrial Strength: Made from a high-impact polymer that resists cracking, fading, and the corrosive effects of industrial machine oils.

✔ 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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