Hoping someone can clear this up. Doing tons of searches on this site and others to see what sealants guys are using for a front upper timing cover job on a '94-95 E320. Or, in general, what MB is recommending today for most engine applications.

Can anyone tell me the differences between these MB sealants?

002-989-45-20
-also
0029894520 - $39.75
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002-989-73-20-10
-also
002989732010 - $6.90
(when I do a search on fastlane, it lists 003-989-98-20-10)

Is this what is known as loctite 5900? Or Permatex "the right stuff"?
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003-989-98-20-10
-also
A 003 989 98 20 10
-also
003989982010 $11.63

Does this MB part# supercede 002-989-73-20-10?

And is this what is known as loctite 5900? Or Permatex "the right stuff"?
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001 989 61 20 10
-also
001989612010 26.25

Steve Brotherton lists # 001 989 61 20 10 used for the dabs in the corner.(upper timing cover). And # 002 989 47 20 10 for the metal-to-metal surfaces.

The link to his fantastic writeup. http://www.continentalimports.com/ser_ic100345.html

Man, I would really appreciate any guidance on sealants. I'm about to head out in a minute (6:30 a.m.) to try and round up some Permatex "the right stuff" so I can do the cover today. But I may hold off until I can get the correct MB sealant.

I've used 003-989-98-20-10, but it takes forever to cure - and I'm about out!
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Many, many thanks!