Jim--

Here are the part numbers that made up the upgraded chain tensioner for my 1987 190E 16V:

104-050-01-66 Body for the tensioner--this screws into the block
102-050-17-11 New tensioner assembly that screws into the above using a 10mm Allen socket
102-993-05-01 Spring that installs in the tensioner
102-991-00-01 Nylon (?) pin that goes inside the spring to keep it from flexing
007603-020100 Washer
007603-027101 Washer

There is no similarity between the upgraded tensioner and the one that was installed in my car, which was the original. I bought all of the above from Caliber Motors at significant savings compared to the quote from my local MBZ dealer.


Jim

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Jim Herold--Current: 1987 190E 16V, 1999 ML 430--Past: 1971 280 SL, 1972 250