If you click on the link for SNG Barratt you can download the parts catalog for the X-Type. Them and Jagbits are are forum sponsors and are a good source for parts.
The part number for the calmps is:
Aircleaner Hose to
Aircleaner Fixing Clamp C2S11219

 

Rogelio: The official Jaguar part C2S11219 is $20+, but if your budget is tight, any $1-2 large hose clamp works, like this example: Everbilt 2-3/4 in. Stainless-Steel Clamp-6736595 - The Home Depot

In a pinch, some folks use nylon zip ties until they can get a metal hose clamp.

The Jaguar EPC - Electronic Parts Catalogue is very helpful for part numbers and diagrams. Download it a copy from here (1st link): https://www.jaguarforums.com/forum/x...essories-5915/

 

My current clamp seems marginal but yeah that would do just fine just in case. I have a pile of those in assorted sizes and when I replace my radiator I will replace the badly rusted spring clips on the coolant hoses.