CAT Aftercooolers — and whats Real

I am in a quandry — Just bought a boat with 3406e’s. 2850 hours on each of the 2 in the boat. Teh boat was super clean. The engine room was super clean, hardly anything turned up on the survey mechanical or otherwise. The after coolers were replaced and upgraded to the new style 7years and 700 hours ago. At 2140 hours they also did the 3000 hours maint to the motor and rebuilt and blueprinted the turbos at 2140 hours. So these coolers have 700 hours on them — they have been flushed every 2 years, boat is in Saltwater.

I spoke too the mechanic that has been maintaining the boat for the last 10 years. He is a certified CAT mechanic, but has his own shop now after 20+ years with the dealer. He has been in business for 10+ years on his own. I will be using him as well going forward.

He said (and I have receipts from seller) that he just a couple months ago flushed and cleaned these and then pressure tested them and they are fine. He would change them, but I’m just throwing money down the drain. He suggested if I am truly worried— we Sonic clean them, pressure test them and I thought maybe I could boroscope them? Nort sure if they are tubes or plates. Either way closely inspect for any corrosion.

Manual say change — seems a little over the top, but I understand the importance of these— so what would you suggest/do?
Plan is to hang out and address all survey items/Learn the boat for the remainder of this year — then after the first of the year— go to Bahamas for a 2-3 month cruise
Ask on Boat diesel — no real reposes in 24hours — maybe they dont want to touch this issue

Dang boat — bail out another 15k

1Yep —I knew this when I bought back in — I guess I thought THIS TIME IT WOULd BE DIFFERENT !!!— Lol — no lube — no reprieve and a big fat -your a big man you can take it—- pay to play…

Yep Dammit! — I guess I gotta pay to play— oh well — it is what is is— I personally think that phrase must halve been first uttered by a boast owner!— TY

Dammit— thats what I am talking about —these tested fine they were changed 7 years and 700 hours ago and then tested fine 4 months and 20 hours ago and help pressure and have been cleansed and now I need to change them to the brand new ones just because a lawyer (I hate Lawyers) said to the Cat folks— here’s how you CYA— let everyone of these minions spend 20K — they are dumb and are locked in what are they really gonna do???

Of course not— no warranty — but CAT guys assure— if it goes sideways with new stuff and a cert CAt Instsll I’m protected— meanwhile— I am begging insurers to take my money — this is crazy! It’s one giant sucking sound designed to extract cash for nada!!!!

Manual say 6 years— replace because they had a lawsuit— so… they simply said 6 years or x # hours — its like 10k hours

New— at the 3000 hour they upgraded to the new skins are the upgrade as well as the current coolers are the new style they had the parts machined and it has the new coolers in it as well as the “covers” or the other parts are the new style — its all new style