MTD Genuine Parts 42-Inch Tractor Mulch Kit Fits 2012 and After Fits Side Discharge Tractors and RZT Mowers with 42" Decks (2012 & After) Includes: 2 Mulching Blades, Molded Plug,Mounting Hardware and Instructions Part # 942-0616 / 742-0616 and 942-04312 / 742-04312 Consult owner's manual for installation instructions