1B7-81940-00-00 Starter Solenoid for Yamaha 252S 1800 2021-2023

Starter Solenoid for Yamaha 252S 1800

This starter solenoid for Yamaha 252S 1800 boats replaces OEM part 1B7-81940-00-00, delivering the high-current switching needed to engage the starter motor reliably.

Overview

This starter solenoid for Yamaha 252S 1800 is an electrical relay that routes battery current to the starter motor when the ignition is engaged. It is built as a direct replacement for OEM 1B7-81940-00-00 and suits boat owners performing routine maintenance or replacing a failed solenoid. The starter solenoid for Yamaha 252S 1800 restores dependable engine cranking to your vessel.

Built For Performance

• Direct replacement for OEM part 1B7-81940-00-00
• Heavy-duty contact points handle repeated high-current starting cycles
• Sealed housing resists moisture and corrosion in marine environments
• Stable terminal connections reduce voltage drop during cranking
• Drop-in fitment matching factory mounting and wiring positions

Fits These Machines

• for Yamaha 252S 1800, 2021
• for Yamaha 252S 1800, 2022
• for Yamaha 252S 1800, 2023

On-The-Job Use

• Replacing a solenoid that clicks but will not crank the engine
• Routine electrical maintenance on jet boats
• Restoring reliable cold starts on the water
• Keeping a spare on hand for unexpected no-start situations

Specs At A Glance

Good To Know

Q: How do I know if my solenoid has failed? A: A common sign is a single loud click with no engine crank, or intermittent starting that worsens over time. Testing voltage at the starter terminal during ignition helps confirm the solenoid is the fault.

Q: Does this require any wiring changes? A: No. It is designed to connect using the factory terminal layout and mounting points for the listed models. Confirm your existing harness connections match 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.