Auto Parts Stores For Older Cars Around Bkk ?

Hi all

are there any other areas than around Chinatown that have parts stores for older cars ?

I am looking for New stuff , either original from the 60s-70s or replacement stuff made now,

I have been to all the places in Chinatown, at least the ones I can find, its a big place,

but is there another area tthe other side of town ?

I know the area that has all the used motors / gearboxs that kinda behind National Stadium area, but I am looking for new stuff not used.

I guess the same question for older Motorcycle stuff , old Hondas or Vespas parts

thanks for the info