09 H3T Alpha w/original hummer running boards.
Right rear running board end plug missing.
Any one know of a used one?

LF photo

Right rear photo.

 

I do not, nor would I bother. As soon as you attempt wheeling with those in place they will be bent up like a broken Pretzel. Make the investment of a set of Rock Rails instead of tracking down what will no doubt be a significantly overpriced replacement.

On rare occasions they will come across eBay or Craig's List.

Best of luck.