2003 Volkswagen Jetta Voltage RegulatorReview Fitment Notes to Ensure Proper Fit
Bosch Voltage Regulator
Part Number: W0133-1613555
Notes: 120 Amp
Ground, Overnight, 2 Day
Had a draw on my battery with vehicle off because of a burnt out diode in my voltage regulator. Swapped this in, rather than replacing the whole alternator. Worked a charm! Even 4 months later! A fraction of the cost of purchasing an identical genuine Bosch piece like this from my local Advanced Auto or Autozone. They wanted close to $180 plus shipping for this identical piece. Will use this website again soon!
I was looking for a genuine Bosch product at a great price. The part came quickly and with online instructions was easy to replace. Voltage output is back up to specs.
this was a very good quality part and was what was on the original alternator, worked great