OEM John Deere PTO Clutch Plate Kit AM878397 

It fits model 415, 425, 445, 455, X465, X475, X485, X495, X575,  X585, X595, X700, X720, X724, X728, X740, X744, X748, X729, X749, X710, X730, X734, X738, X739, X750, X754, X758, 940, X948 and X949 John Deere tractors.