Is 400k the new 800k?

Man, am I unlucky or is this just what to expect. Truck has 1.2million on it, but man parts don't seem to last as long as they used too.

Starter motor - starting to #### itself after new one installed 400k miles ago (delco 39mt)

Water Pump - #### itself after new one installed 350k miles ago (genuine from Detroit)

New radiator - Hole in it after new one installed 250k miles (genuine from freightliner)

Lucky to get 18months out of a new set of batteries. (Tried expensive batteries and they did no better than the cheapest crap I can find)

Like what's the deal here am I unlucky with parts or are parts getting worse.

It's not like these are cheap after market parts.

My mechanic says I am the unluckiest guy he has ever seen. I swear parts used to last a lot longer

 

Freightliner dealer has said it will take 6-8hrs to put in a new water pump on a dd15, like wtf

 

I am not in the truck, my driver is, they have been working on it for 7hrs so far

 

Yep, I am about to lose my mind, what a joke

 

I tightened up the bolt which made it better, but yeah it needs to be done, it's not as easy as a job on my truck, it's on the engine side, so not as much room. It's not on the outside like your trucks (am in Australia)

Why would I get water pump done instead of Pitman Arm? Lol, I am not broke, I make good money and can afford repairs. This water pump just blew out completely, normally they leak a bit and you can catch it early, but this one just grenaded itself by the looks of it.

Man I hate dealers