Toro maintenance kits contain everything the "do-it-yourselfer" needs to keep a Toro machine running like new. It's an easy and convenient way to ensure your Toro equipment will run its best year after year. All components are approved by Toro engineers for use with the Toro engines on the Toro TimeCutter chassis. Kit includes A fuel filter (#139-0717), an oil filter (#136-7848), an air filter (#108-3811), 2 spark plugs (#21-3250), 2 fuel treatment packets (#130-2393), and 10W30 oil.