Has anyone found a replacement for the subject part that is no longer available? Or possible fabrication of a substitute part.

 

Heritage is showing it as available. Not cheap, and the various US vendors have added a hefty mark-up:
https://parts.jaguarlandroverclassic...ning-pipe.html

Is it the rubber part that has failed?

 

This problem was discussed.
I found that the left motormount needs to be removed for access to the compressor.
Most of my sedans and convertibles are modified with the 2 piece setup.

https://www.jaguarforums.com/forum/x...needed-280242/

 

Thanks. I knew of the two-piece mod for the early cars, but not aware of the return to a single pipe. So the early mod must fit OK on the late cars?

 

The compressor side of the pipe is the same for X308or X100 but the section with the 'rubber' hose is different on different models.
I found that the supercharged were different from normally aspirated due to routing around the throttle area.

 

On the Heritage drawing it looks like C2N1700 has dispensed with the join in the middle and crimped the hose directly onto the suction pipe.

Seems Jaguar has muddled around with this a few times.

 

The 1997/1998 X100 and 1998 X308 had the 2 piece suction hose assy. The 1999 onward were fitted with the ONE PIECE hose assy.
Jaguar issued the TSB for fitting the 2 piece to make it easier for the parts to be fitted to the later cars.
The one-piece cannot be removed/fitted with the engine/gearbox fitted.(one or the other must be removed to replace the one-piece)
The front subframe/crossmember can also be removed to drop the pipe as one piece.
I simply made my own 2 piece on my cars for ease of replacement since the Jaguar parts are NLA.

 

When I had to repair the suction hose on my 2000 I repaired it in situ, but only after hours and hours of research. During that process I ran across quite a few 2-piece assemblies available on eBay. Have you tried that venue? You may very well have to have the rubber portion replaced after so many years, but any competent hose assembly place can do it, or you can DIY with the proper crimping tool. Then all you need are new o-rings.

What is the problem you're having? Is the metal part damaged or is the rubber part leaking?