HONEYSEW Lower Knife For HUSQVARNA VIKING Huskylock 901 PFAFF 4764 TOYOTA 6300, 6600 WHITE 1800 1900 634D 7234 7934DW 834DW SL234D SL34 SL34D #1250004237 KNIFE LOWER #1250004237 fits PFAFF 4764 For HUSQVARNA VIKING SERGER MODELS - Huskylock 901. ForTOYOTA SERGER MODELS - 6300, 6600, 6700 New, Non-OEM Replacement, High-Quality For WHITE SERGER MODELS - 1800, 1900, 634D, 7234, 7934DW, 834DW, SL234D, SL34, SL34D.