KOHLER 235116-S Engine Air Filter For M8, K181N/L And K241 - K321 KOHLER Genuine Part KOHLER 235116-S Air Filter; M8, K181N/L and K241-K321; for 8 thru 16 HP engines Circular shape 6-1/6-inch outside diameter, 4-3/4-inch inside diameter, 1-7/8-inch height Warranty - 90 days against defects in materials or workmanship