My wife came down the driveway in a cloud of steam and I feared the worst.

BUT reassured by the true quality of the Japanese I opened the hood to find that the top rad hose had just popped. I made a quick call to Delicat for a part number and then went in search for one locally. (thanks David). I was not able to cross reference the Mitsu part number from Lordco, Napa, or my local Mitsu dealer, so I went trudging to the back wall of my local Lordco to find a match. Now that I've made your eyes blurrrry from my rambling I just thought that I would let everyone know that the part #Dayco 70440 from Lordco fits perfectly with a slight 1/2" trim to the long end.
No problems with my Deli other than now having to clean the sticky glycol from my engine.
Andrew