Voltage Regulator | Mk4 | B5 | Mk1 TT

ON SALE $44.09


Part# 038903803EX

In Stock
This product is currently IN Stock.
Ships in 0-2 Days
This product usually ships within 2 business days.

Does This Fit Your Car?

The voltage regulator maintains a constant voltage level by controlling the output of the alternator. If you're alternator is failing to charge your battery or run the electrical systems of your vehicle, the internal diodes of the regulator may be faulty. A good way to check for a faulty voltage regulator is to use a digital multimeter on the battery, with the engine running, to read the charging voltage. If voltage is not constant around 13 to 14 volts, chances are the voltage regulator has gone out. Replace yours to restore proper operation to your charging system.

This product fits:

  • 1999.5-2005 Golf/Jetta
  • 1998-2005 Passat
  • 1998-2006 Audi TT

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Can't find what you're looking for?
Odds are we can get it! Click Here Now