ARCO 1987-2007 Mercury Outboard Voltage Regulator

The ARCO VR600 voltage regulator is a charging-system replacement for a wide range of Mercury outboards built from the late 1980s through the mid-2000s. The supplier fitment covers multiple two-, three-, four-, and six-cylinder engine families, so confirming the original regulator number is important before ordering. The unit performs the regulation and rectification function required by the compatible outboard charging system. It is intended to replace the original component without changing the stator, wiring layout, or charging-system design.

Mercury cross references include 815279A2, 8M0084173, 883072T, 854515T1, 854515, 8301792, 8152795, 8152793, 830179T, and 856748. Several of those numbers represent superseded versions of the same regulator family. Matching the installed part number is useful when the engine’s model-year information is incomplete or a previous repair changed the regulator. Inspect the connector arrangement and mounting points against the existing component before installation.

Check the charging-system connectors, grounds, stator leads, and battery connections for heat damage or corrosion during replacement. A high-resistance connection elsewhere in the system can cause charging problems that a new regulator will not correct. ARCO lists 12-month parts-and-labor warranty protection for this replacement component. After installation, verify charging voltage and system operation using the engine manufacturer’s diagnostic procedure.

• Broad Mercury outboard application coverage
• Cross-references multiple superseded Mercury regulator numbers
• Direct replacement for the compatible charging-system regulator
• Designed to restore normal regulation and rectification function

For other marine charging regulators and alternator service components, Browse more Alternator Parts & Accessories for related replacement and service components.