Hi Rich; finding the right hub covers will require knowing the wheel size and the bolt pattern on the wheels. For example, the Phoenix USA Baby Moon Hubcap # PX1309SS fits 16" conventional wheels with a 6 on 5-1/2 or 8 on 6-1/2 bolt pattern. I have attached a link below to all of our available hubcaps for your reference. view full answer...
The only way to find a wheel center cap that will fit is to know your wheel size and measure your pilot diameter. For example, the # AM90195 you looked at will fit 13" and 14" wheels with a 3.33" center bore. I have attached a link below to all of our available center wheel caps which can be filtered by pilot hole diameter once you have your measurement. view full answer...
I received your pictures but cant make out the exact measurements. Here are some different options with the different inner diameters.
10-1/4" # AM981306
10-1/2" # PX1307SS
11-11/16" # PX1309SS view full answer...
John, I do believe we have something for you, but without any dimensions of the center cap it's going to be a bit difficult to say for sure, but from the looks of it the Trailer Wheel Center Cap Plug # AM90082 looks like it'll work.
This center cap fit 1-7/8" holes and center caps with a 2.95" - 5.15" outer diameter. If you can let me know specifically what size center cap you're looking for I'd be happy to help. view full answer...