Kohler maintenance kit for regular maintenance of residential generator sets * Easily change the oil, install a new oil filter, and change the spark plugs and air filter * Promotes easy start-ups, reliable performance, and extended lifespan of Kohler generator * For use with 12RESL, 14RES, 14RESA, 14RESL, and 14RESAL residential generator sets * Includes air filter, pre-cleaner, oil filter, 2 quarts of engine oil, 2 spark plugs, and instructions