This heavy gas generator was pulled from a big RV in Arizona many years ago. Only 204.3 original hours. I know this to be accurate because my father knew the previous owner very well and they did very little dry camping. I have used it for less than 10 hours in the last 5 years. Always covered. Starts and runs well but battery is toast from too much sitting. Kohler 23 HP V-2 air cooled commercial engine. Model # K582EP. Believe to be 1975-1977 model. 1800 RPM Kohler Generator Model # 7CM21-RV 120V/60 Hz