Genuine Tension Spring (Medium) B3102804000 for Juki MO-804 Sewing Machine

Maintain balanced and consistent thread tension with this genuine Juki Medium Tension Spring (Part No. B3102804000), designed for the Juki MO-804 sewing machine. This original OEM component is part of the thread tension assembly and provides medium-level pressure control, helping ensure smooth and even stitch formation across a wide range of fabrics.

The medium tension spring works together with the tension discs and other spring components to regulate thread flow, delivering stable stitching, reduced thread breakage, and improved sewing consistency during industrial operation. According to Juki parts system structure, it is used as one of the standard tension strength options in MO series overlock machines, along with light and heavy variants.

Manufactured to Juki’s factory standards, this spring offers a precise fit, reliable elasticity, and long-lasting durability, making it ideal for continuous industrial use.

Key Features:
Original Juki Part (OEM) – Ensures perfect compatibility and performance
Part Number: B3102804000
Compatible with: Juki MO-804 sewing machine
Function: Provides medium thread tension control for balanced stitching
Improves Stitch Quality: Suitable for a wide range of fabrics and threads
Durable Spring Steel: Built for long-term industrial reliability
Essential Tension Component: Helps maintain stable sewing performance

Replace worn or weak tension springs with this genuine medium spring to restore proper thread control and keep your machine running smoothly and efficiently.