At work we have several well seasoned machines......that we still use as front line equipment...one of my Toro greensmasters has 5350hrs,the other has 1750. One of my Steiners 1997(420 4x4)has 2300,the older Steiner 1989 420 4x4,has around 10-11000 hrs,its been thru 4 meters so i dont have an exact number but the number im giving is conservative....I have 2 dixie choppers,one 25hp kohler with 1100 hrs,and a 2005 XXWD 5000 turbodiesel yanmar beast with 700 or so hrs...my 2001 GMC 2500HD with 8.1L/Allison has 3600hrs(and 102K miles),and my new to me ventrac 4231 has 500.....Ive got a bunch more stuff but this is the main stuff we use, The Steiners are just amazing machines,we took deivery of our 1989 in spring of 89,and its never stopped since, Im hoping the Ventrac is as durable a unit overall,as the Steiners have been for us.