278003012 Starter Solenoid for Sea-Doo GTX STD 300 1630 2021-2026

Starter Solenoid for Sea-Doo

This starter solenoid for Sea-Doo personal watercraft relays high-current battery power to the starter motor so the engine cranks on command, and it cross-references OEM part number 278003012.

Overview

This starter solenoid for Sea-Doo is a direct-fit electrical relay that switches heavy current from the battery to the starter motor when you press the start button. Built to handle the cranking demands of the Rotax 1630 engine, this starter solenoid keeps starting reliable ride after ride. It is made for riders and mechanics servicing Sea-Doo GTX models who want a dependable replacement without paying original brand pricing.

Built For Performance

• Direct cross-reference to OEM part number 278003012 for straightforward replacement
• Handles the high current draw required to engage the starter motor
• Sealed housing resists moisture and spray common in marine use
• Copper internal contacts support consistent electrical flow
• Compact bolt-in footprint matches the original mounting points
• Designed for the electrical demands of the Rotax 1630 engine

Fits These Machines

• for Sea-Doo GTX STD 300 1630, 2021-2026

On-The-Job Use

• Replacing a failed or corroded solenoid that will not crank the engine
• Routine electrical maintenance on personal watercraft
• Shop repairs and DIY servicing of Sea-Doo GTX models
• Restoring reliable push-button starting before a day on the water

Specs At A Glance

Good To Know

Q: How do I know if my starter solenoid has failed? A: A common sign is a single loud click with no engine crank when you press start, or no response at all. Testing for voltage at the starter terminal while cranking can confirm the solenoid is the fault.

Q: Do I need to replace the starter motor at the same time? A: Not necessarily, but inspect the starter and battery cables while you have access. Corroded connections can mimic solenoid failure, so clean and tighten them during install.

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