CHENGYIDA 1pc Upper Knife Serger Overlock For Brother 1034D 929D Viking Upper Serger Knife for Brother 929D 1034D 1134DW Part #XB0563-001 Compatible with Brother Serger Models: 929D, 1034D, 1134DW, PL1500 & PL2000. Compatible with Husqvarna Viking Serger Machine Models: 660CD & 680CD