Help keep your charging system's voltage in check with the Standard Ignition Voltage Regulator VR-169, a replacement regulator that controls the voltage the charging system sends to the battery and electrical components. It fits many vehicles, among them the 1980-1987 Volkswagen Jetta, 1990-1991 Volkswagen Golf and 1985-1987 Volkswagen Cabriolet. It is a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list.
A voltage regulator limits the charging system's output so the battery charges without being overcharged or undercharged. Signs this part may need replacing include dim or flickering lights, a charging warning light, a battery that keeps going flat, or a battery that appears overcharged. These symptoms can have other causes, so test the charging system before replacing parts.
Interchange: R639 · VR505 · 12327092 · 035903803 · 036903803 · 036903803A · 049903803H · 055903803 · 171903803
This part cross-references / interchanges with the following part numbers:
Is this the right 1980-1987 Volkswagen Jetta voltage regulator?
It is listed for the 1980-1987 and 1990-1991 Volkswagen Jetta. Check your exact year and model in the "Vehicles it fits" section before ordering.
Will this 1990-1991 VW Golf voltage regulator also fit a 1985-1987 Volkswagen Cabriolet?
Yes. It is listed for the 1990-1991 Volkswagen Golf and the 1985-1987 Volkswagen Cabriolet, along with many other models shown in the "Vehicles it fits" section.
What does a voltage regulator do?
It controls the charging system's output voltage. The battery charges properly and the electrical system gets a steady supply instead of too much or too little voltage.
How is the Standard Ignition VR-169 built?
Standard encapsulates its electronic voltage regulator PC boards in epoxy to help resist failures from vibration and corroded connections. It pairs premium components with a circuit board it makes itself.
What are signs a voltage regulator may need replacing?
Signs include dim or flickering lights, a charging warning light, or a battery that goes flat or seems overcharged. Test the charging system first, since other parts can cause the same symptoms.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
