I replaced a Jasper engine in a guys boat back when I had my shop.

We filed a claim with them, they sent a new long block and paid the total labor bill. So I would have to say the warranty side was pretty good, but if I recall the first one didn't have a whole bunch of hours before it failed... The guy sold the boat shortly after that, so no idea how long the second on lasted. But hey, if they still warranty them parts and labor, can't be all bad.

Having a good warrantee is good .Having to use it is bad .Some big volume "builders"I think play the numbers. If you throw enough engines out there ,they don't all come back .A certain percentage are probably out of warrantee before the owner finally gets it in the boat.