Other part numbers of interest for the air intake system.

000-094-29-80 $11.50 Air filter housing seal

615-016-00-81 $11.00 Crank case vent elbow

615-016-00-23 $28.50 Crank case vent tee

000-094-04-85 $33.00 Rubber air filter mount (side) 1 required

615-094-00-85 $29.25 Rubber air filter mount (bottom) 2 required

I ended up buying all of them though you could skip the mounts if yours are ok. The seals and hoses are important particularly for a Diesel. Dust and dirt in a high compression unthrottled engine is not good.

Prices are from Pelican Good luck!

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1969 220D 5 Speed (OM616)
1983 240D 4 Speed
1985 300D Auto 376K
1985 300D Auto 275K