278000123 Voltage Regulator for Sea-Doo GT 580 1990-1991

Voltage Regulator for Sea-Doo GT 580

This voltage regulator replaces OEM part 278000123 and keeps your charging system output steady on 1990-1991 Sea-Doo GT 580 watercraft.

Overview

This voltage regulator for Sea-Doo is a direct-fit electrical component that manages charging system output on your personal watercraft. It replaces OEM part 278000123 to keep your battery charged and your electrical accessories running correctly. Built as a reliable replacement for 1990-1991 Sea-Doo GT 580 models.

Built For Performance

• Direct replacement for OEM part number 278000123
• Regulates charging voltage to protect battery and electrical components
• Solid-state construction for consistent output
• Pre-wired connector for straightforward installation
• Designed to withstand marine engine vibration and heat

Fits These Machines

• for Sea-Doo GT 580, 1990
• for Sea-Doo GT 580, 1991

On-The-Job Use

• Replacing a failed regulator that causes battery drain or overcharging
• Restoring proper charging on older Sea-Doo watercraft
• Electrical system maintenance and repair

Specs At A Glance

Good To Know

Q: How do I know if my voltage regulator needs replacing? A: Common signs include a battery that keeps draining, dim lights, or overcharging that damages electrical parts. Testing charging output with a multimeter helps confirm the fault.

Q: Does this regulator come with installation hardware? A: It is supplied as the regulator unit with its connector as shown. Reuse the original mounting hardware unless otherwise noted.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.