Original Upper Tension Assembly for Singer Model 221 Featherweight Restore perfect thread tension control to your Singer Model 221 Featherweight with this genuine original upper tension assembly. This essential component ensures consistent, professional stitching results for all your sewing projects. Perfect Compatibility: Singer Model: 221 Featherweight Type: Original vintage component Function: Controls upper thread tension Installation: Direct replacement for worn assemblies Why Choose This Upper Tension Assembly? The upper tension assembly is critical for proper stitch formation and thread control. A worn or damaged tension assembly can cause uneven stitches, thread breaks, and poor stitch quality. This original assembly restores your Featherweight's precision tension control, ensuring the consistent, beautiful stitches your machine is famous for. Perfect for Featherweight enthusiasts, collectors, and seamstresses who demand authentic performance from their treasured Singer 221. Keep your machine running smoothly with genuine original components that honor the craftsmanship of this iconic sewing machine.