Replacement drawer holder
Thanks for posting. I am afraid we don't carry this exact hardware, but if this is a under, center-mount track, you may be able to replace it entirely with our 32-053 Kit. This is a very versatile track kit that works with loads of different drawers. See the guides listed on this page and let me know if you think this could work for you.
Thanks for clarifying. In that case, I don't believe that this is a project we can help with. We don't currently sell any bracket that matches your design, and being mounted on the side I don't think we have an alternative. My suggestion would be to contact the original manufacturer directly to see if they can provide you with this exact part.