I’ve always bought the 0396236 assembly, but the roller must come off because the parts are sold separately. There have been updates in the roller materials over the years – it now has a clear material over the black roller. If you replace just the roller, be sure the shaft it mounts to is good so it doesn’t bind up. The roller getting stuck is what gives the wear in your photo. By replacing with the assembly, you know it’s going to work. The new bracket is black plastic while the old one is white, so they may have done a change in the type of plastic used.
Dave
Here is the assembly:
http://www.marineengine.com/newparts/part_search.php?part_num=0396236