The XF and XP are Suzuki based bikes. The frames are pretty much identical to the DR200SE. Check a Suzuki parts website and compare the part with yours.
Edit - Here's a diagram of a swing arm from a 2000, DR200SE.
https://www.partzilla.com/catalog/su...r-swinging-arm
Does this look like yours? If so, you might be able to make one out of stuff you have laying around. Do a search for diy chain slider for some ideas.