'97 E300 part number inquiry

[lupin..the..3rd]

I'm looking for two part numbers for '97 E300 D if anyone has access to an MB catalogue:

1. The large black plastic cover that goes over the injectors. Mine's broken, with a piece missing right in the middle where the p/n is stamped.

2. The small barbed metal 'plug' that plugs the very last injector return line.

TIA!

[TMAllison]

Looks like on yours the cover is #77 (6060100167)
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=210020&M=606%2E912&GA=722%2E438722%2E600&GM=717%2E446&CT=M&cat=19T&SID=01&SGR=075&SGN=08

Cant find the return line plug.

[Matt L]

I don't think you'll have trouble finding a plug if you go to any dealer. Isn't it the same for the past couple of decades?