Air tank condensate drain valve used on all UNIMOGs,
with air over hydraulic brakes including the 406/416/419/SEE/435 etc.
Comes with a ring to which you may attach a pull cord.
Requires one 22 x 27 copper crush washer (item # 007603022102C, sold separately).
Part is supplied by Febi.
Replaced both of these on my U1300L with no issue. They come with a normal crush washer instead of the grooved washer with o-ring that I assume was OEM. Works just the same though.