If you're paying someone to do it, have them purchase the replacement core so that they are on the hook for the warranty. don't bring your own part, as they will likely not warranty it for labor should it fail.
Also, do NOT run a ground strap to it as suggested above. That will introduce a ground which allows galvanic corrosion to occur.
-m
Also, do NOT run a ground strap to it as suggested above. That will introduce a ground which allows galvanic corrosion to occur.
-m