This rebuilt alternator came to me DEFECTIVE! I took it to 2 different auto parts stores to have it tested even BEFORE I had it installed in my vehicle so I wouldn't have to pay my mechanic TWICE to install a GOOD one! It was tested 2 TIMES at both auto stores and FAILED all 4 times it was tested. Was told it had a "bad bearing" for one problem! DO NOT WASTE YOUR TIME OR MONEY ON THIS ITEM!!!