09-18-2019, 08:40 AM
Not sure how handy you are but I did my aftercoolers (Cummins 6CTA's 450hp) several years ago.... Easy to remove from the engines and reinstall.. Disassembled both and had the aftercoolers cleaned/pressure tested. All good. Expenses included new "O rings" (4 required for 2 aftercoolers) approx $40.00. Cleaning/pressure testing cost approx $100.00 for both .... I've attached a link relative to aftercooler maintenance


![[-]](https://www.tiaraownersclub.com/forum/images/netpen-pro/collapse.png)