83,85 300D/CD Air cleaner lid-breather tube grommets needed

[BruceMcC]

I'm looking for new grommets that seal around breather tube-air cleaner lid hole.
All three of the cars I maintain; 83 300CD, 84 300D x2 spew oil from the old, dried up grommet.

Can any one suggest a source ? MB dealer is not help- nearest one is outside my (disabled) diriving limits.

Thanks in advance,
Bruce McCreary
Snowflake, AZ