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My shop's 12-valve Cummins just hit 850,000 miles on the original bottom end

We pulled the pan last week for a routine inspection on this old bread truck engine. The owner said it's never been opened up, just regular oil changes with 15W-40. The bearings still had visible cross-hatching and the crank journals looked great, no scoring at all. I've seen plenty of these go the distance, but this one was a shocker. What's the highest mileage you've seen on an untouched 5.9L?
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3 Comments
emmam89
emmam899d ago
Damn, that's insane! I heard about a farm truck with one of those that went over a million before the trans gave out, not the engine. Those old 12-valves are just built different, lol.
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the_olivia
Guess that truck just refused to die!
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vera195
vera1959d ago
Wow... did they ever check the turbo, @the_olivia?
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