Andrewc
Veteran Member
I'm looking at a 1997 Jefferson that is powered by twin Diamond series cummins engines that are rated at 420hp. I'm having a hard time tracking down any info on this particular model of cummins. My current boat has an older single cummins rated at 210. I love the engine, fuel efficient, simple, and easy to work on. The higher horsepower versions of other motors always seems to decrease reliabilty. Any info would be much appreciated!