Actually those are both chrome center cap part numbers. There is a seperate part number for the silver center caps (xy18pakab).

 

Where did you find the H2 wheels with smooth chrome.

 

A customer of mine had them. He rolled up with some 24" rims and we started talking about the stock tires because I wanted an extra set for cheap. Once he told me they were on the chrome rims I had to have them. He claims the rims were on the H2 for only one day but I don't know if that's true because the center caps that came with them had a really bad chrome job on them and they were the plain ones too.
The only thing I can think of on the cap numbers is that maybe the difference is in the 1500 caps and the HD caps for the 8 lug wheels. I will be pulling my rims off this weekend to install my Kleen Wheels and I will check the part number for you.

 

thanks I really would like to know the part number

 

#52121450AA-Chrome