Does anyone know how I'd find this particular hose and clamp circled in red? I've tried searching a bit and haven't had luck. There seems to be a good size coolant leak happening near the clamp area so I figured to get it replaced. Thanks so much in advance!

 

https://www.pegasusautoracing.com/pr...aign=GTS-32915
try one of these in the correct size.

 

Hey thanks for the respond Gumby. I'll give one of those a shot and see if it fixes the leak or if I'll have to replace that hose too.

 

Looks like the hose itself is leaking. Back to searching for a replacement, does anyone know if there's a way to just replace the hose itself or does that whole assembly need to be replaced?

 

Those hoses come as an assembly. Try the dealer prices, when I replaced all the hoses on my car, one of the hose assemblies was close to $1k and another assembly of similar complexity was $20. There's no law that says it has to make sense.
You could pull the hose assembly out, cut or grind the steel band at the other end of the leaky hose and replace it with a piece of stock hose, assuming the plastic T piece has a barb that will allow that. You've got nothing to lose by investigating it.
The bad news of course is that if one hose is failing, the rest won't be far behind. I decided to replace all my hoses when the first one failed, but then the one that failed was the one that needed the engine removed and blower taken off to get to it.

 

Update: Took it to the dealer and the circled part of that hose is part# C2Z10606 Hose-coolant return $83.70 which is indeed an assembly. Now to install it looks like a big job for someone not too mechanically inclined so might just bite the bullet. The other hose assembly is part# C2Z1719 Hose-Water $296.59 which I figured to do both since it seems inevitable that'll go soon too.

 

Update: Got the hoses from Harper Jaguar online for about 300 bucks shipped. After the dealership quoted me over $2,000 with the parts included, I found a local shop who did my pads/rotors a couple months ago and they get it done for $500 which included getting the bottom shield re-bolted up. Runs and idles great now!