Erie Tools Lawn Mower Deck Spindle Assembly fits Cub Cadet RZT Series 1170, 1600, 1800, 918-0427C, 618-0324, 918-04197 Cub Cadet Models 1170, 1600, 1800, RZT mowers Spindle assembly replaces Cub Cadet, 918-0427C, 918-0427, 618-0427A Also Replaces Cub Cadet Models 918-0324, 918-0427A, 618-0427, 618-0324A Models 1170, 1600, 1800, RZT mowers with 42 deck using star hole blade Depending on Mower Model, 2 or 3 Spindles ay be required