I can't tell you that but I have a feeling this was more starter and not necessarily the cables (though they were too tiny). I am guessing this because I have that thing spinning like a top hot and cold and I still have the old negative cable installed.

The negative cable is a 6ga+10ga lead so not much current carrying capacity however it is only about 18" long. I have the matching 2 ga negative cable to swap in. I just need to install it. Heck the starter might spin a teeny bit faster once that cable is swapped in.