[JFP in PA]

The orings for the cooler are very cheap, couple bucks at most. There are only four bolts holding the cooler down, so the orings are easy to change. Major issue is that you need to drain the cooling system in order to change the orings (good time to put in fresh coolant/distilled water mix), and do any other cooling system updates (e.g.: water pump, t-stat, etc.).