Air Filter / Kohler 235116-SPack Size:1Kohler 235116-S, Kohler 235116Donaldson P538231, J. Thomas AF-1386, Landscaper Express 055009, Napa 2373, NHC 235116-SKohler K241-K321, K181NL and M8; for 8 thru 16 HP enginesID: 4 5/8 ", OD: 6 ", Height: 1 7/8 "