Upper Looper,Singer Serger 14CG744,14CG754,14SH744,14SH754 # 550568 Alt# 416327101 93-415505-68 *PLKHG484UY5492 416327101 93-415505-68 *PLKHG484UY5492 Singer Upper Looper 550568 looper for Pfaff 4762 4772 Upper looper for Consew Models 14TU854 LOOPER # 550568 Upper Singer 14U557