If you're going to buy Jag parts, buy them from someone who knows what they're doing.
XK's and SNG both are strictly Jag, with the occasional Land Rover listing.
I think I'd buy parts out of RockAuto....never.
Funny, you do any on-line search, RockAuto always, as in always shows up in the results..but when you pursue it, I have yet to find anything but "not found".
Maybe your mileage will vary.