Radiator Outlet (Upper) Hose Connection

The main consideration is that the hose needs to be sufficiently pushed onto the radiator spout so that the clamp is resting fully on the spout. That appears to be the case when looking at your photo, and I see no signs of coolant leaking in that area, so no worries.

Radiator hoses typically are not a big maintenance issue on the Prius. My 2004 had 231K miles when I sold it, and the original equipment hoses were still pliable and in good condition.

The engine doesn't produce that much heat so the radiator and the hoses will typically have a very long service life.

 

yes the hoses on mine look good too. But take care of that hose clamp spray a little lubricant on it so it wont corrode.

 

I did my weekly oil checks of my cars and looked at your hose and mine looks just like yours because the
Metal neck that comes out of the rad is tilted away from the rad so the hose behind that hose can pass behind it. The neck is tiled and designed to allow clearance of the inverter coolant have which shares the bottom of the ice rad.

You can see how tilted away that hose is in your picture.

If you look closer there’s a metal nub on that neck so the hose cannot go any further on that neck.
That neck is very long. Has a straight part and a tilted part. The hose is on the tilted part.

As far as anti metal corrosion lubricant the best on the market is CSP SPRAY at Home Depot.
Made by PB BLASTER does not smell and it’s basicly spray grease. It’s on everything in my cars and no rust anywhere no squeaks no rattles.