I got it from this website 

https://www.carpartsmanual.com/

I'm not sure the discrepancy isn't from how you measure the booster. If you measure the main chamber its 6"

When you measure out to the outside band, its closer to 7". I would still contact a rebuilder. Doesn't matter what size it is. As long as they have parts for it

Thanks. I’ll check with the rebuilder. 

so you can use this one  it is a good fit and 6"   You will find it in Europe.

 

 

Thanks for the information. Appreciate it.

Ask to have it powder coated as well. They do a fantastic job.

here for lesss.... 😉  39,90! (euro)

2103-3510010 - Bremshilfe Bremskraftverstärker LADA NIVA 1600 & LADA (aet-autoteile.de)

Thought about getting myself one but.. no.. it looks like it but is not original..   

The outer diameter it says 18cm about 7 inches..  maybe the internal suction part is the 6 inches meaned by others..

Edited December 8, 20213 yr by dutchzcarguy

my is 6inches,  

i will send a few pictures when i  am back from Danmark, 

 

 

 

Here are a few pictures to compare the  (not original) booster  6" out of my 240Z and the russion made booster

 

And here is the original 6"   i restored with parts out of a second booster from russia 

The push rod looked pretty long in the Russian booster. Did you get that to work out?

☺️Oh yes, you are right... thats my blame ... it is the one from my original booster  and not correctly fitted.   

That's the problem with old part