1B7-81940-00-00 Starter Solenoid for Yamaha SX 190 1800 2016-2023

Starter Solenoid for Yamaha SX 190 1800

This starter solenoid, referencing OEM part number 1B7-81940-00-00, delivers the high-current switching needed to engage the starter motor on Yamaha SX 190 1800 watercraft.

Overview

This starter solenoid is a direct-fit replacement for the original relay on Yamaha SX 190 1800 models. It routes battery current to the starter motor when the start button is pressed, giving the engine the cranking power it needs. Built for personal watercraft owners doing their own maintenance and repair work.

Built For Performance

• Heavy-duty copper contacts handle repeated high-current switching
• Sealed housing resists moisture and corrosion in marine environments
• Direct replacement for OEM part 1B7-81940-00-00
• Compact body fits the factory mounting location without modification
• Reliable engagement for consistent engine starting
• Weather-resistant terminals for long service life on the water

Fits These Machines

• for Yamaha SX 190 1800, 2016-2023

On-The-Job Use

• Replacing a failed or clicking starter relay on a Yamaha SX 190
• Routine electrical maintenance on 1800 series personal watercraft
• Restoring reliable starting after corrosion or wear
• DIY repairs at home or in a shop

Specs At A Glance

Good To Know

Q: How do I know if my starter solenoid is failing? A: Common signs include a single loud click with no crank, intermittent starting, or no response when the start button is pressed. Testing the relay with a multimeter can confirm whether it is passing current.

Q: Does this solenoid require any wiring changes? A: No, it is designed to connect to the factory harness and mounting point as a direct replacement. Always disconnect the battery before installation.

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