1B7-81940-00-00 Starter Solenoid for Yamaha 212SD 1800 2021-2022

Starter Solenoid for Yamaha

This starter solenoid for Yamaha marine engines handles the high-current switching that engages the starter motor, and it matches OEM cross-reference 1B7-81940-00-00 for a direct-fit replacement.

Overview

This starter solenoid for Yamaha is a relay-style switch that routes battery power to the starter motor when the ignition is engaged. It serves boat owners maintaining 212SD 1800 models from 2021 to 2022 who need reliable starting performance. Each unit is built to match the 1B7-81940-00-00 reference for straightforward replacement.

Built For Performance

• Heavy-duty internal contacts rated for repeated high-current starting cycles
• Sealed housing resists moisture and corrosion in marine environments
• Direct-fit terminal layout matching the 1B7-81940-00-00 configuration
• Coil winding designed for consistent engagement at 12V
• Weather-resistant casing suited to engine compartment conditions

Fits These Machines

• for Yamaha 212SD 1800, 2021-2022

On-The-Job Use

• Replacing a failed solenoid that will not engage the starter
• Routine maintenance on 212SD 1800 boats used in fresh or salt water
• Restoring reliable ignition response on a 2021-2022 Yamaha marine engine

Specs At A Glance

Good To Know

Q: How do I know my solenoid needs replacing? A: A single click with no engine crank or intermittent starting is a common sign the contacts have worn. Testing voltage at the starter terminal while cranking confirms whether the solenoid is at fault.

Q: Is this an original Yamaha part? A: This is an aftermarket starter solenoid built to the 1B7-81940-00-00 reference, not an original Yamaha product. Confirm your engine serial number matches the application before ordering.

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