2PC Master Cylinder Brake Line Adapters 9/16-18 & 1/2-20 x 3/8-24
$15.99
2PC Brake Master Cylinder Adapter Fittings. Pictures are from the actual inventory. You can see in the pictures that the 1/2-20 adapter side has a larger seat area and the 3/8-24 side has the smaller 3/16" seat size.
