We Surveyed Yanmar, Perkins & Cummins Diesels After 10,000 Hours — A Clear Winner

Yanmar, Perkins, or Cummins — which marine diesel is still worth owning once she hits ten thousand hours? After thirty five years as a marine surveyor, I pull all three up onto the stands and judge them on the only things that matter at that age: can you still rebuild the block, can you still get the parts, and what the day of reckoning actually costs. I name a clear winner at the halfway mark, no waiting for the end, and prove it with real rebuild prices and owner stories. Tell me what engine is under your floor in the comments.