Purchased with existing 2100 and change hours on it, and it now has about 2305 hours. Oil changed every 50 hrs and all the zincs have been changed out. The previous owner took very good care it. Stainless steel mixing elbow on it and new oil cooler. It was in brackish water so there is a little rust on it but nothing major and the previous owner looks like he tried to touch up some spots with Yanmar spray paint. She has ran flawless with no problems and I know the 4 cylinders are pretty bulletproof. Selling to repower.