One New Aftermarket Replacement Deck Belt Fits Kubota Mid-Mower Deck Belt Models: RCK60-21Z, RCK60-28Z Also Fits Kubota Zero Turn Mower Models: ZD18 (with RCK60-21Z mower), ZD21 (with RCK60-21Z mower), ZD25 (with RCK60-28Z mower), ZD28 (with RCK60-28Z mower) The Classical Banded V-belt achieves ratings considerably higher than most other belts available in the market. The compounds used to build up these belts are chosen to match the stipulated power ratings. Classical Banded V-Belt offer distinct advantages towards increased safety on critical drives. Banded belts are recommended where there is severe vibrations, vertical shafts, V-flat drives, agricultural drives and conveyor drives. Dim A (1)1-1/8" X 121.25" (3079.8) 2/band Dim B (2)Made With Aramid Replaces Part Numbers: K5645-34710, LAB40-0263, K5645-34711, K564534710, K5645-34710DC, SW07594