278003012 Starter Solenoid for Sea-Doo GS 720 1999-2001

Starter Solenoid for Sea-Doo GS 720

This starter solenoid delivers dependable high-current switching to crank the 720 engine in the 1999 to 2001 Sea-Doo GS, matching OEM cross-reference 278003012.

Overview

This starter solenoid is a direct-fit replacement for the 1999 to 2001 Sea-Doo GS 720, engineered to carry the starter motor's amperage draw. The starter solenoid closes the starting circuit so the engine cranks consistently with each press of the start button. It suits riders replacing a failed solenoid, refreshing a seasonal machine, or bringing a stored personal watercraft back into service.

Built For Performance

• Heavy-duty copper contact terminals for consistent current transfer
• Sealed housing resists the moisture and splash common in watercraft engine compartments
• Rated to handle the cranking load of the 720 engine
• OEM cross-reference 278003012 for straightforward parts matching
• Corrosion-resistant finish on the mounting body
• Compact footprint that installs in the factory location

Fits These Machines

• for Sea-Doo GS 720, 1999
• for Sea-Doo GS 720, 2000
• for Sea-Doo GS 720, 2001

On-The-Job Use

• Replacing a solenoid that only clicks or fails to energize the starter
• Seasonal refresh before the riding season begins
• Restoring a stored watercraft to running condition
• Routine electrical maintenance on the starting circuit

Specs At A Glance

Good To Know

Q: How do I know the solenoid is the problem and not the starter? A: A solenoid that clicks without cranking usually points to worn contacts inside the solenoid, while a completely silent system often means a wiring or battery issue. Testing voltage at the solenoid terminals confirms where the fault sits.

Q: Does this solenoid require any wiring changes? A: No, it mounts and wires into the factory starting circuit as a direct replacement. Reuse the original mounting hardware and terminal connections.

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