278003012 Starter Solenoid for Sea-Doo GTX S 1503 2016

Starter Solenoid for Sea-Doo GTX S 1503

This starter solenoid is an electrical relay that engages the starter motor on the 2016 Sea-Doo GTX S 1503 watercraft, and it is a direct cross-reference for OEM part number 278003012.

Overview

This starter solenoid acts as the high-current switch that sends battery power to the starter motor on the Sea-Doo GTX S 1503. Pressing the start button energizes the solenoid, closing the circuit so the engine turns over and fires. It is intended for riders and technicians replacing a worn or failed solenoid on their personal watercraft.

Built For Performance

• Cross-references OEM part number 278003012 for a direct fit
• Rated to handle the high amperage draw of the 1503 engine starter
• Sealed body resists moisture and saltwater corrosion
• Copper internal contacts for consistent electrical engagement
• Compact footprint mounts in the factory location without modification
• Built to hold up through repeated start cycles

Fits These Machines

• for Sea-Doo GTX S 1503, 2016

On-The-Job Use

• Replacing a solenoid that clicks without turning the engine over
• Restoring starting reliability after corrosion from water exposure
• Routine electrical maintenance on older watercraft
• Pre-season prep before heading to the water

Specs At A Glance

Good To Know

Q: What are the signs of a bad starter solenoid? A: A single loud click from the electrical box with no engine crank when you press start is the most common symptom. Confirming voltage at the starter terminal during cranking helps rule out a weak battery first.

Q: Is mounting hardware included with this solenoid? A: This listing covers the solenoid unit only and does not include separate mounting hardware. Reuse the factory fasteners from your original part when installing.

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