Help your BMW's charging system hold the right voltage with the Standard Ignition Voltage Regulator VR-473. It is a direct-fit replacement for many vehicles, among them the 1991-1994 BMW 318i, 1991-1994 BMW 318is and 1994 BMW 850Ci. The regulator controls the alternator's output so the battery and electrical system receive the voltage they are designed to run on.
Signs this part may need replacing include dim or flickering lights, a charging warning light, a battery that runs down or will not stay charged, or symptoms of overcharging. Other charging-system faults can cause the same signs, so diagnose the cause first. If a failed regulator is the culprit, VR-473 replaces it.
See the Buyer's Guide tab for the full list of vehicles and engine details.
Interchange: 89058265 · 12311271664 · 12311722755 · 12311726022 · R978 · 30097 · VR826 · VR639
This part cross-references / interchanges with the following part numbers:
What does a voltage regulator do?
It controls the alternator's output voltage so the battery charges and the electrical system runs within its intended voltage range.
What are signs the voltage regulator may need replacing?
Signs include dim or flickering lights, a charging warning light, a battery that won't stay charged, or overcharging. Other charging faults cause these too, so diagnose the cause first.
Which vehicles does the Standard Ignition VR-473 fit?
It fits many BMW models, such as the 1991-1994 BMW 318i, 1991-1994 BMW 318is and 1994 BMW 850Ci. See the Buyer's Guide tab for the full list and engine details.
How is the regulator's circuit board protected?
Standard Ignition encapsulates its electronic voltage regulator PC boards in epoxy. This is intended to improve resistance to failure caused by vibration and corrosion of electrical connections.
What part numbers does VR-473 cross-reference?
It cross-references 89058265, 12311271664, 12311722755, 12311726022, R978, 30097, VR826 and VR639.
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.
