[v8volvo]

Those hoses are NLA but not too hard to homebrew with a few right-angle sections and a reducer union.

It probably failed due to fuel leaking on it -- you'll want to fix that cracked injector line too, of course, and might want to check out other hoses to make sure there aren't more time bombs elsewhere.

Temp gauge went all the way up? Might want to start it and just make sure it still runs normally before jumping into repairs. Run it for no more than a minute, with the coolant tank cap on and that broken hose left broken and open just like it is, to make sure it's not puffing exhaust out the end of that hose, running differently, or showing any other odd symptoms. These engines really don't like getting hot, sounds like you caught yours quickly which is good, but worth knowing where you're at and checking it out a bit.