1B7-81940-00-00 Starter Solenoid for Yamaha SX 250 1800 2021-2023

Starter Solenoid for Yamaha

Direct-fit starter solenoid for Yamaha SX 250 1800 models, replaced under OEM cross-reference 1B7-81940-00-00, delivering reliable current switching to the starter motor.

Overview

This starter solenoid for Yamaha is a replacement electrical relay that engages the starter motor on each push of the start button. Built to match the OEM 1B7-81940-00-00 specifications, this starter solenoid keeps the cranking circuit clean and dependable. It suits riders and shops servicing Yamaha SX 250 1800 machines from 2021 through 2023.

Built For Performance

• Direct replacement for OEM part 1B7-81940-00-00
• Heavy-duty internal contacts rated for repeated starting cycles
• Sealed housing resists moisture and spray from riding and washing
• Stable terminal alignment for easy bolt-in installation
• Consistent solenoid plunger travel for reliable starter engagement

Fits These Machines

• for Yamaha SX 250 1800, 2021
• for Yamaha SX 250 1800, 2022
• for Yamaha SX 250 1800, 2023

On-The-Job Use

• Replacing a failed or weak solenoid that clicks without cranking
• Routine electrical maintenance on Yamaha SX 250 1800 watercraft
• Restoring dependable push-button starting before a season of use
• Shop service and pre-ride electrical checks

Specs At A Glance

Good To Know

Q: How do I know the solenoid needs replacing? A: Common signs include a single loud click with no crank, no click at all, or erratic starting that worsens over time.

Q: Does this replace the original part directly? A: It is built to the OEM 1B7-81940-00-00 cross-reference, so mounting points and terminal layout match the original unit.

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