I am wanting to replace the gasket that is between the brake master cylinder and the booster. I have looked on some oem honda parts diagrams and I dont see it. Where can I get this gasket or can I order it from honda? Part #?

 

#3?

 

as indicated by the box around the master cylinder in the diagram above an OE unit from honda should come with a new one. i don't think most M. cyl. from the auto parts store come with one because the old one can typically be reused if it looks fine.

i've had good experiences using hondapartsunlimited.com when ordering things like that.

EDIT: part #- 46185-SE0-003 (92-95 civic) seal, rod. less than $5.

 

No, not number 3. I have number three. The gasket I want looks like the one that goes between the Clutch master cylinder and firewall.

I wish I had a picture of the old one. I have seen this gasket on some civics not all. A friend of mine had a vacuum leak in that area and it was fixed by going to the junk yard and getting another gasket.

I am wondering if I really need the gasket that I am talking about, I just don't want a vacuum leak.

 

oh.. it's shaped like the master cylinder flange and has the two bolt holes? i don't think you would have any vacuum leaks relating to that, but if you can't find one, just cut one out of some gasket material from the auto parts store