Customized kit is designed specifically for 42″ TimeCutter SS & MX models featuring Kohler V-Twin 2014-2017). We design our kits with genuine parts to include all items required to tune-up engine and renew blades. Please verify your model and serial number prior to ordering. The air filter (as pictured) is a racetrack design. This is equivalent to kit 32 789 02-S. Fits Time Cutter models: SS4225 TimeCutter Zero Turn Mower (74721), SS4235 TimeCutter Zero Turn Mower (74633), SS4260 TimeCutter Zero Turn Mower (74636), MX4260 TimeCutter SS Zero Turn Mower (74642). The following parts are included Air Filter (32 083 09-S), Fuel Filter (25 050 22-S), Engine Oil Filter (12 050 01-S), 2 Spark Plugs (RC12YC), 2 U.S. Quarts Synthetic Blend Oil 10W30 (25 357 65-S), Set of 2 Blades (131-3939-03P). Genuine parts maintain consistent performance and assure proper fit.