Guaranteed to fit Elna Serger Models:
664, 664 PRO, eXtend 264

Guaranteed to fit Janome (Newhome) Serger Models:
1110DX, 204D MyLock, 3434D Juno, 434DR, 504D, 534, 534DR, 634D MyLock, 644D, 7034D Magnolia, 788D, 7933 Harmony, 793PG, 8002D, 8200D, 8933D, 9002D, 9102D Harmony, 9200D, HD4BE, HF3434D, HF504D, HF7933, HF9102D, M644D, MOD-Serger

Guaranteed to fit Kenmore Serger Models:
385.16622, 385.16644690, 385.16655100, 385.16677, 385.16677700

Guaranteed to fit Necchi Serger Models:
S34

Guaranteed to fit Pfaff Serger Models:
4752 Hobbylock, 752

Alternate Part Numbers: 788601000, 788601007, 98-788601-00