key 4dThe number of possible permutations for a given 4D number depends on the number of unique dits in the 4D number as shown in the table below. Number of Unique Dits in the 4DReplacement for part numbers: 4D67, 4D-67, 4D68, 89785-08020, 89785-60160, 89785-34020, TOY44D-PT, 5910834 ; Please make sure that