Pretty close Dutch...part # does start with 19...
The only time I used one..(this 1 has never been used..still in the box)..was in a classroom..
I too use an amprobe...and wouldnt own a shunt if Briggs didnt make me buy one when I was a dealer..
Installing it on the Neg terminal is correct..
If You Have All The Answers...Except The One You Need...You're Not Trying Hard Enough...
Do The Work