Quote:

Would this be the right one?

http://www.summitracing.com/parts/EAR-949012ERL/

Is the dimensions they list for "fitting size 2" the same as a -12?



Yes, that is just the OD for -12 male threads. Both share the same 3/4-16 thread. SAE O-ring boss and JIC (AN) have the same thread pitch.

You can go the industrial fitting route and spend less than $5.00
6801-12-12-FG or 12-C5OX