Mine developed a leak from the fitting at the radiator side. Mechanic told me damage to the O Ring inside radiator causing the leak and I have to change to complete brand new radiator. I have a doubt just for a small leak I need to change a whole radiator? I seek any advice from you guys. Thnks in advance...

 

The fitting is a common item that can be purchased from most of the local parts houses, search for Oil Cooler line connector,

The O-ring is a little more challenging to locate and needs to be the correct one to seal correctly,

A new fitting price ranges from $6 to $20

If its leaking form the the internal oil cooler seal then they are correct, a new radiator will need to be purchased, the oil cooler is installed prior to the radiator tub being installed

Neal