All of our Tune Up Kits include Original Equipment Manufacturer (OEM) parts to perform a simple tune up. Toro TimeCutter Series Tune Up kit includes air filter, fuel filter, oil filter, spark plugs, oil and a set of new blades. All parts are Genuine Toro, Kawasaki and NGK. Nothing in this kit is aftermarket. K-Tech oil is specially formulated for use in Kawasaki FR-Series engines. This kit is customized for the following models: SS5000 TimeCutter Zero Turn Mower (74730, 74631, 74630), SS5060 TimeCutter Zero Turn Mower (74632), MX5060 TimeCutter Zero Turn Mower (74641, 74776).