OldIHC

Hi new to site and looking where to get parts for my 53 L110

A lot of the mechanical stuff can still be purchased at sources like NAPA, Rock Auto, etc.

The Delco-Remy ignition stuff, except the coil, is the same as a mid-1960's Chevy.

Some things are eBay and/or Craigslist only.

Can you be more specific about what parts?

Will echo Nikki, make a list and then check the Parts link at the beginning of this forum.
Then if you still are looking for stuff, also check the Swap section, sometimes things are listed there. IF what you are looking for is listed there, check date of original post and then you might PM or Email the person. I have been very slow in removing old posts where things are no longer there.
You can also post a list in this thread and others will respond with information or even may have just what you need.
Good Group of people here, but we are diverse and not everyone is retired like some of us. Give it time.