Parts list: № Number Qty Name Options 1 SAA36128 1 Knife 2 SAA35220 1 Knife 3 SAA12602 1 Knuckle 4 SAU16897 1 Plug 5 BSA645 1 Grass Mulching Attachment Next page: ST998800 MULCH SYSTEM CONVERSION KIT - BSA643 ST998803 MULCH SYSTEM CONVERSION KIT - BSA649 ST790783 Mulch System Conversion Kit - BSA632 ST791483 Attachment, Mulch System Conversion - BSA632 ST724751 Mulch System Conversion Kit - BSA624 ST401508 MULCH SYSTEM CONVERSION KIT - SA571, SA574