Generac 5665 Air Cooled Home Standby Generator Maintenance Kit， 20kW， 999cc Kit (For HSB models prior to 2013)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Generac Guardian Maintenance Kit for 20kW Home Standby Generators</li><li>Tune-Up Kit， Keep your generator running at optimum performance</li><li>Contents: Air Filter， Oil Filter， Oil Funnel， Spark Plug， Chamois， Instruction Manual， Reminder Sticker</li><li>(2008 to 2012)</li><li>Includes: air filter， oil filter， spark plugs，oil funnel， chamois</li><li>Oil must be purchased separately</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NAZSoklTL.jpg" noproxy>