On the DV washers, I ran across a thread awhile back that said the correct one for a US 617 pump is this:

Diesel Delivery Valve Seal 0049974540 - Bosch - Mercedes-Benz - 004-997-45-40-M14 | Pelican Parts

Which would be great since they're only a buck. Any confirmations or denials?

Hard to find good info, since so many confuse and co-mingle the MW and M pumps.

-Rog