CAT330 - ATTACHMENTS 100 HYDRAULIC SYSTEM Parts group 100 HYDRAULIC SYSTEM 100 HYDRAULIC SYSTEM . HYDRAULIC SYSTEM SAW MOTOR 20`` HEAD ( 63412 - ) 2000-178/10 [2000-178/10] HYDRAULIC SYSTEM SAW MOTOR 22`` HEAD ( 65036 - ) 2000-178/10 [2000-178/10] HYDRAULIC SYSTEM SAW MOTOR 24`` HEAD ( 603001 - ) 2000-178/10 [2000-178/10] HYDRAULIC SYSTEM SAW MOTOR 24`` HEAD ( 603003 - ) 2000-386/10 [2000-386/10]