871 head gasket

[Heavyhauler]

Hello to everyone,

I have a 2009 cm 871 about 2 years ago I needed injector cups. so in good nature I bought a new head, checked the deck with a machine shop. Also all new hardware right from Cummings, head bolts, manifold, valve cover etc. I also said the hell with it and put all new injectors at the same time to avoid future head aches. With all that being said 175,000 miles later I have a weeping head gasket. external leak passengers side front corner of the head a block. I can't wrapped my head around why on earth this would be an issue so early. I thought to myself that if there was any corners cut or mistakes made, it would have showed up much sooner? I will be pulling the head off this week, at a shop that allows me to be involved to save time and also give me piece of mind. this will obviously give us if any insight maybe, the truck has never been over heated for the entire time i've owned it.

Maybe a fluke, faulty head gasket ?