I had my fourth radiator put in last Friday, Feb 6, after it started leaking Weds morning after a 2 degree night. The last one was April 2008, which was past my 36,000 warranty. I figure the replacement radiators last 9-10 months, then leak again. The dealer charged around $203 for the radiator. I had to go back today again after the hose from the overflow tank to the radiator cap started leaking. The reciept from last week only had the fuel filter on it, not the radiator. I asked the service person, and he did not "finalize" the paperwork yet ? Thank goodness I bought the extended warranty. They have a website where you put in your member number, and the invoice will show the work, costs, etc. I figure that most of the 06 Explorers/Mountaineers will be near or over the 3/36000 mark, so you will be on your own. The service manager hates this site.:thumbdwn: