Brother Tension Release Disc Part No.159805-001 Will fit most Brother standard lockstitch sewing machines Also known as 100134-001 & 32572 Tension Unit Complete Assembly Part No 181473-001 Trojan Sewing Machines Supply Equivalent Single Needle Lockstitch Machines. Model Jack A4, Jack JK-9100BS-7 and Jack JK-609C. All with modern designs and the latest technology. All competitively priced.
