The number of hours on a boat refers to the number of hours that the engine has been ‘driven’ or used. Typically, diesel engines last longer than gas engines, and will have more hours on them before they need to be replaced. There is no ‘set’ number of hours that are good, but typically gas engines last up to 1,500 hours. So, if you buy a boat with a gas engine with less than 750 hours on it, the engine is about halfway through its life. How long it takes to get those hours will depend on how often you use the boat. Unless you’re a boat mechanic or want a project, you probably don’t want to buy a gas engine boat with more than 1,000 hours on it because they may need some work done to them and then to eventually be replaced.
A diesel engine will typically last for about 5,000 hours so much longer than a gas powered engine. But, just like with all boat parts, the engine needs to be properly maintained for it to stay in good working order. And don’t decide on buying a boat just based on the hours, also check out its overall condition, its year, features, and technology onboard so you can make an informed decision.