Keep the charging system in check with the Standard Ignition Voltage Regulator VR-124 (also written VR124). A voltage regulator manages the output of the charging system, holding the voltage sent to the battery and electrical components within the proper range so the system doesn't over- or under-charge. It's a direct-fit replacement for a long list of imports, including the 1962 and 1965-1966 Alfa Romeo 2600, 1969-1980 Alfa Romeo Spider, 1962-1964 BMW 1500, 1966-1975 BMW 2002, 1968-1973 and 1975 Fiat 124, and 1960-1965 and 1968 Mercedes-Benz 220 — see the Buyer's Guide tab for the full list of 112 applications and their engines.
- Epoxy-encapsulated PC board: the electronic regulator board is sealed in epoxy for improved performance and added resistance to failures caused by vibration and corrosion of electrical connections.
- Precise, reliable operation: premium components and a Standard-manufactured circuit board are built for accurate operation, reliability, and extra durability toward a longer service life.
- Quality-controlled build: produced by a global OE ignition manufacturer that maintains quality control from componentry through finished product.
- High-grade materials: this starting and charging system part uses high-grade materials for extended service life.
Signs the original regulator may need replacing include a battery that overcharges or undercharges, flickering or overly bright/dim lights, and a charging system that won't hold proper voltage. Diagnose the charging system first to confirm the regulator is the cause.
Frequently Asked Questions
What does this voltage regulator do?
It manages the charging system's output, keeping the voltage delivered to the battery and electrical system within the proper range so it doesn't over- or under-charge.
Does the VR-124 fit my vehicle?
It's cataloged for 112 year/make/model applications, including various Alfa Romeo, BMW, Fiat, and Mercedes-Benz models. Check the Buyer's Guide tab to confirm your exact vehicle and engine.
How is the regulator built for durability?
Its electronic PC board is encapsulated in epoxy for added resistance to failure from vibration and corrosion, and it uses premium components and high-grade materials for a longer service life.
What are signs my voltage regulator may be failing?
Common signs include a battery that overcharges or undercharges, flickering or unusually bright or dim lights, and a charging system that won't hold steady voltage. Diagnose the system to confirm the cause.
Is VR124 the same part as VR-124?
Yes. VR124 is simply the compact form of the manufacturer part number VR-124; they refer to the same Standard Ignition voltage regulator.
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