[giro2]

This is an old thread, but that's such a nice picture, and is exactly what I am doing and the problem I had.

After pulling that tube on the right off, first to replace the rear spark plugs (it ripped this first time) and then for the knock sensors and for the coolant leak in the V of the engine, that hose ripped at the end. FWIW I tried to grab the line off of 3 engines at the junk yard, and all 3 ripped. The line measures at just a hair under 5/16". I think the 5/16" fuel and evaporative hose at Autozone will work, for $3/foot.

The original is listed as 23826 in the picture at 2006 TOYOTA SIENNA WAGON, 5-DOOR, XLE 3300CC 24-VALVE DOHC EFI, AUTOMATIC VACUUM PIPING and https://images.simplepart.com/images/parts/toyota/fullsize/173570C.jpg