I have a 1997 960 wagon with 130K. About 2 years ago, I had a radiator fail and it was replaced by local mechanic with an aftermarket unit. It was replaced twice under warranty. Well, the third unit has failed. Do volvo dealers still carry the proper radiator? The aftermarket unit fails at a surplus fitting that a hose connects with on other models. This plug has been sealed off on my radiator. Thanks. GS