It depends how much overheating occured and if the coolant mixed with the oil or not.
Mazda standard process is that if there is coolant in the oil they replace the engine automatically. If not then they replace the head (the entire head because it is likely cracked, not just the gasket). The jeep dealer may not be familiar with the issue with these engines. I recommend you print the Mazda TSB and bring it to them.
Also if you can, you can join the class action lawsuit if it is still active.
Mazda standard process is that if there is coolant in the oil they replace the engine automatically. If not then they replace the head (the entire head because it is likely cracked, not just the gasket). The jeep dealer may not be familiar with the issue with these engines. I recommend you print the Mazda TSB and bring it to them.
Also if you can, you can join the class action lawsuit if it is still active.