After reading some interesting threads on the B-2 piston failure, I decided to be proactive and get the upgraded part. The dealer ordered the part but I'm missing a piece that I thought would be included (I guess it is not a "kit").

Some good background on the procedure & problem:

http://www.dieselgiant.com/Mercedesb2pistonsealreplacementl.htm

http://mbca.cartama.net/showthread.php?t=17113&highlight=piston

http://web.archive.org/web/20041026013432/http://business.baylor.edu/Richard_Easley/autofaqs/b2piston.htm

This link has a picture of the part I am looking for - it's the white ring plastic piece:

http://www.peachparts.com/shopforum/attachment.php?attachmentid=15972&d=1077514484

Description:
"The sleeve in which the B2 piston operates was changed from metal to plastic to reduce the possibility of binding (and it is imperative that this sleeve be changed.)"

Anyone know the part # for the sleeve (or if there is in fact a "kit" part number that has the the sleve and the piston?

Thanks!

feel free to email me direct if easier: bodyart27@aol.com

Car is a 1984 300sd 126 chassis

__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net

Still trying to find this bushing part number. I confirmed that the part 107 270 04 32 is just the B-2 piston, and does not contain the white bushing.

Someone on the MBCA tech forum said for a 93 300se transmission is was:
the updated plastic bushing # 126 277 08 50. The lip seal at the bushing is #006 997 73 47. but could NOT confirm this was applicable for my 84 300sd.

I did find two more articles, but still no part # for the elusive part:

http://articles.mbz.org/transmission/b2/why/
http://articles.mbz.org/transmission/b2/repair/

Has anyone done this upgrade????

__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net