Genuine Juki Thread Tension Spring Complete (Part #131-37559). This authentic Juki component is the "active" heart of your tension assembly, providing the precise resistance needed to maintain consistent thread flow during high-speed industrial sewing.

Precision Tension Control
The tension spring is responsible for absorbing thread slack and ensuring the stitch is pulled tight against the fabric. The 131-37559 is a complete spring unit, manufactured to Juki’s exact metallurgical standards to provide consistent "spring-back" without losing its shape over time.

Why Choose the Genuine 131-37559 Spring?
Consistent Stitch Quality: Prevents "looping" or loose stitches by maintaining the exact calibrated pressure required for industrial-grade seams.

Superior Fatigue Resistance: Crafted from high-tensile spring steel, designed to withstand millions of compressions without losing its original tension settings.

Smooth Thread Response: The specialized finish on the spring coils prevents thread snagging and reduces friction-induced heat.

✔ 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

💡 Add more items to your cart to qualify for free shipping ($99+)

📩 Not sure if this fits? Send us your machine model or a photo — we’ll help you confirm.

⚠️ Please confirm your machine model before ordering