Generac Guardian 5662 Maintenance Kit for 8kW 410cc Air Cooled Generators (For HSB models prior to 2013) Designed for 8kW (410cc) Air Cooled Generators manufactured from 2008 to 2012 Keep your air cooled generator running at optimum performance Oil not included; should be purchased separately Kit Includes: (1) Air Filter, (1) Oil Filter, (1) Oil Funnel, (1) Spark Plug, (1) Chamois, (1) Instruction Manual, (1) Preventative Maintenance Reminder Sticker