Anyone know what size the fittings are on the brake master cylinder? Got a new one and it didn’t come with any to bench bleed it.

 

Advance or auto zone plus I'm sure others sell some really inexpensive kits for bleeding the master cylinder. Come with all kinds of fitting and some tubing. Worked very well when I did mine.

 

The brake lines should all be M10x1.0 You can just buy a short brake line from the autoparts store and cut it in half to get the two lines you need to bench bleed the master. Cut the line with a tubing cutter, not a grinder or you could get metal shavings back into the master while you bleed it.