Caster Wheels for Summit Gold D4? #99241?

I picked up this older Summit D4 a few weeks ago. I finally got to start working on it. It had grease over grease over grease built up. And was stored in storage for some time. Good thing: No rust. Sometimes you gotta love grease. Lol. It is in great condition but the caster wheels are missing. Also the plastic inserts for the wheels are missing. I plugged in some caster wheels from a Genesis but they seem too small. Looks like the Summit casters are a bit larger. Is part number 99241 the correct one?
I would go after market but I need the plastic inserts as well.

Yah, Geez, on that summit that i scrapped earlier this summer, I thought I kept the wheels, but not sure. I will have to do some checking. Are those wheels like the E310 grills

The wheels on that are different than a Genesis. Grill Parts.com has them That's where I bought mine

Stefan, that PN looks like an older Genesis caster. I wouldn't think that's right. Do you have one to measure? Maybe take it to your local caster store. If it's similar to the E series casters, they are 20.00 each from online sources, and a suitable replacement (I'm pretty sure.....) would be shepherd casters PUT75291BK and PUT75291BK-B. You could order those from Apollo caster-http://www.apollocaster.com/store/caster-twin-swivel-3-75mm-nylon-grip-ring-716x114-black-rivet-165-pedal-lock-wheel-68962-p-68962.html.

Or the non-locking is available on Amazon - https://www.amazon.com/exec/obidos/ASIN/B009PF9U66/tvwb-20

Ralph, the wheels look exactly like the older Genesis wheels. They are just a little bigger. Since various parts sites point to the same part number (#99241) I now ordered them from ereplacement parts. They had the cheapest price with shipping.