On a brake master cylinder

[Potter]

So it looks like I'm in for a master cylinder for my 2000. Not comfortable working on the brake lines, am off to the stealership.

I can feel the underside of the master cylinder and it's dry. There is fluid dripping from the bottom of the booster. As I recall, the booster does not have fluid in it and what's dripping is probably originating at the connection of the two parts.

Does a booster typically need to be replaced if it's been in contact with the corrosive fluid?

Any caveats before I take it in?

[Potter]

Was no big deal, I was prepared to be taken. Aftermarket cylinder was used and was told it was identical to the part Toyota would have sent out - it was just a matter of who had one in local stock.

Part was $185 and labor $135. I saw the same cylinder on Amazon for half that.

But it works, so happy camper here.