74 e9 brake master cylinder rubber plug

[bluecs]

Confusion: There appears to be 2 different sizes for my 1974 E9 master cylinder rubber plug.
One part has numbers 35311103205.
And the other has 34311121191. 74 uses 22mm master cylinder.
Thanks in advance for any input.

 

[TedS]

The difference is pretty easy to spot if you can compare to what's on your existing one. BTW, the part numbers you've got there aren't right. I assume you just transcribed them wrong.
Pelican Parts has helpful pictures:
34311103205-

34311121911-

 

[bluecs]

Got it. Thank you, Ted's.
I wonder if the inner diameters are the same such that they are actually interchangeable?

 

[bluecs]

TedS

 

[HB Chris]

17x8 and 22x8, it’s all there in RealOEM