Replacement Kohler Air Filter 4508302, 45-083-02-S, 45-083-02. Includes Replacement Pre-filter 45-083-01, 45-083-01-S Quality Aftermarket Air Filters Plus Pre Filters Pre Filter Replaces Kohler 4508301S Air Filter Replaces Kohler 4508302S ID 4-3/4", OD 6", 3" high.