Keep the charging system voltage steady with the Standard Ignition Voltage Regulator VR-580, a direct-fit replacement for the 1999-2000 Honda Civic (L4-1.6L). Mounted at the alternator, it regulates the alternator's output so the 12-volt system holds a controlled charging voltage to the battery and electrical loads.
- Epoxy-encapsulated board: The electronic PC board is encapsulated in epoxy for improved performance and added resistance to failure from vibration and corrosion of electrical connections.
- Precise, durable operation: Premium components and a manufacturer-built circuit board support precise operation, reliability, and a longer service life.
- OE-grade quality control: Built by a global manufacturer of original equipment ignition products, with quality control maintained from componentry to finished product.
- Connector: One square female connector with four male blade terminals; 12-volt.
Signs the regulator may need replacing include dim or unusually bright lights, a battery that won't stay charged, or a charging-system warning light — if a faulty voltage regulator is the cause, this replaces it, so diagnose the cause first. Hardware, mounting brackets, and instructions are not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Japan. Manufacturer part number VR-580 (also VR580).
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this voltage regulator do?
It controls the alternator's output so the 12-volt charging system maintains a steady voltage to the battery and electrical loads, helping prevent over- or under-charging.
What vehicle does the VR-580 fit?
It's a direct-fit replacement for the 1999-2000 Honda Civic with the L4-1.6L engine. Check the Buyer's Guide tab to confirm it matches your vehicle.
Are mounting hardware and instructions included?
No. Hardware, mounting brackets, and instructions are not included; consult the vehicle service information for the correct fasteners and whether they may be reused.
What are signs the voltage regulator may need replacing?
Dim or unusually bright lights, flickering, a battery that won't stay charged, or a charging warning light. Diagnose the cause first, since these can have other sources.
Where is this regulator mounted?
At the alternator. It's a 12-volt regulator with one square female connector and four male blade terminals.
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