I have the steel square hydraulic tank in the service bay above the diesel and hydraulic filters.
The hydraulic lines are attached to male fittings screwed into the bottom of the tank on the engine side.The return line for the power steering attaches to the tank with a hose barb/ male nipple fitting .
Someone has replaced the original brass fitting with a nylon fitting that cannot be tightened sufficiently to prevent it leaking.
I need to know the correct size of the male fitting. The hose that attaches to the hose barb end might be 3/8ths in.
Thanks, Jeremy