Kingpins and Fifth Wheels Worldwide

I do not know about America but here are what is in use in Europe. Probably the same is in use in South America and in Asia.
But do you still use 12 V in trailers? I have seen trailers in Chile who were pulled by Volvos with 24 V and Freightliners with 12 V. My spanish was to bad to understand how it was made possible.

Have a look at https://truck-and-trailer.jost-worl..._TT/07_King_pins/01_Intro_Koenigszapfen_d.pdf

 

They were made in Brasil by Randon.
Randon Implementos

 

Yes. Kingpin size and fifth wheels are the same worldwide. You have to know the history of trucks in Europe. After WW2 during rebuilding Europe used American trucks and trailer's for years before they were building their own again. They continued on with the American patented designs.
It has always amazed me how August Fruehauf came up with the 2” kingpin size in 1916 when a trailer was 18’ long and gcvw’s were 20,000 pounds. That size pin is still used today. Was overkill then. By 1935 Fruehauf and Holland Hitch Company with the FW35 fifth wheel had “standardized” the industry for ever.

 

Thanks. I wasn’t thinking of the 3.5” military spec. that many of the niche contracting companies use over there.