I recently ran across a very bumpy construction area of I-10

. While in an area where they turned the 4 lanes into two way traffic and lined them with concrete barriers I watched my hub cap from the rear dullys bounce off the barriers and miss all traffic! Could not work up the nerve to stop all traffic in an attempt to retrieve!
Now I need to buy a replacement! Are they RV model specific? Do I need to shop for the replacement at an RV dealer or Freightliner

Maybe a wheel and rim shop!