My 2009 XK has some peeling on both of the headlight lens. I can use PlastiX by McGuire and it covers it for a wash or two. Additionally, sometimes water will find its way into the housing after washing, but will dry after a while.

The headlights are fine except these cosmetic issues. I see that these lens have clasps and seals. Can you buy spare headlight assembly and swap the cover / lens / seal with another?

There are many headlights on Ebay but most have broken or repaired tabs which I'm just interested in just replacing the lens.