Yanmar Saildrive Dip Stick O-ring for SD20, SD25, SD30 and SD31 Yanmar Saildrives.
This part is the dipstick O-ring that should be changed when changing the oil on a Saildrive model listed below.
For Yanmar Saildrives:
SD20, SD25, SD30 and SD31
Yanmar Part Number: 24311-000320
