Tee post numbers?

[JimLee]

I have a Tee post, #51912-35, there's a #2, near the end that attach's to the frame.
Is this just a stock Harley "casting"number, for every year, or is it year specific?
What year bike's would use that part number?
Thanks
Jim

[Robert Luland]

It's not a part number but a casting number. Bob L