The radiator was replaced in November of 2012. I logged the cracked radiator with head office Toyota, as it was considered highly unusual for a van of that age to have its radiator replaced. Would this upper hose that you are referring to have likely been replaced at the time of the new radiator installation? The same garage the replaced the radiator has my vehicle.
It seems that the garage was referring to a 'molded' S or Z-shaped engine coolant hose (he described it to me) that burst. Since the radiator was replaced just 7 months ago, what that may need to be purchased in conjunction with this hose Ie. When this hose burst (and the vehicle had just been parked and was not driven afterwards), what other component connected to this hose could have been potentially damaged. I trust the garage's work but paying for a $20 hose vs a $800 complete component is a scary thought...I will only know on Monday when they check with Toyota parts.
thank you and have a great summer!