Singer serger 14U34 repair/ replacement parts. Left lower looper #412452 with mounting screw. Price includes shipping to lower 48. Return for full refund if fails on your machine. Will fit Singer models 14U12A, 14U32A, 14U34, 14U34B, 14U44, 14U44B, 14U454, 14U46B, 14U52A, 14U64A, 14U64C, 14U85B, 14U234, 14U234B, 14U244B, 14U285, 14U286, 14U344, 14U354, 14U444, 14U454B, PRO4D.