- GLM marine after-market Johnson outboard parts come with 2 year warranty
- Lower gearcase parts are made
from 316 stainless including bolts, screws and magnetic oil drain screw.
- Drain screw has 3/8 inch national coarse
threads that can also be used with our oil pump. Oil fitting can be used to pressure test lower unit gear-case on any outboard motor.
Click here for more lower unit tools
- Make your own pressure test kit that uses drain screw hole threads click on link above.