Am presently ordering the parts to do the old B2 piston replacement on my 1984 500SEL (euro, 722.311 trans). Can easily get the piston and seal ring from Phil at this site (good guy, and always helpful). The sleeve is supposedly now a plastic part available assumably only from dealer. I would like to give them the part number to make sure I get the right thing, and because they tend to give me a better deal when I can just call with the part number. Anyone have the right one?

Allen Gara
chicago