I've the master cylinder and servo(?) out because it was leaking on the floor under the brake pedal. Took it previously to garage, wanted too much to fix it. Need some help. Most parts places are quoting $2000+ for the whole piece but the diagrams don't designate a part name or number for the one piece I'm interested in. In the picture below, it's between part 23 and part 24. What's the actual nomenclature, part number, place to get one, or anything about it?

 

It's part #22, which is the actual servo unit. You have to buy the whole assembly. You can't get the servo unit alone. Even if you could, it would still be 90% the cost.

 

Any ideas about refurbishing the servo?

 

I don't know if i'd rebuild the servo because I cannot tell if anything inside the unit seems serviceable. It may well just be o-rings and orifices for the fluid to travel. You can find used units on ebay or even from the European version of ebay for pretty cheap. Nothing close to the dealer price of a few thousand. At the very least you can salvage parts from one or the other to rebuild one. But based upon what you mentioned that the brake fluid was leaking it seems more probable that it's an o-ring that went bad. The difficult part is to find which o-ring. Good luck!!!