163 hours. I will plug in a techmate pro and I'll be able to tell the exact hours and details in on monday. It has been in a 2001 25' Daytona all it's life, In september of last year I added a stainless steel water pump housing from CP performance, I put on a set of MSD spark plug wires and I also changed both fuel filters. It has a set of fresh spark plugs and fresh mercruiser 25w-40 engine oil. I went through everything at the end of the season and used it for one trip to lake powell since.