6H3-81800-10 6H3-81800-11 Yamaha Starter Motor Hitachi | Genuine Used Part

🔧 Product Description

Genuine Yamaha Hitachi Starter Motor Assembly - Part Numbers: 6H3-81800-10 / 6H3-81800-11

A genuine Yamaha Hitachi-style starter motor used on Yamaha 60HP and 70HP three-cylinder two-stroke outboards. This 12-volt, 9-tooth, counter-clockwise starter motor family is commonly used on Yamaha 60F and 70-series two-stroke engines.

⚙️ Key Features

• Genuine Yamaha starter motor assembly
• Correct Yamaha references 6H3-81800-10 and 6H3-81800-11
• Hitachi-style starter motor
• 12-volt, 9-tooth, counter-clockwise starter family
• Used on Yamaha 60HP and 70HP two-stroke outboards

🚤 Compatibility

Commonly used on

• Yamaha 60HP and 70HP three-cylinder two-stroke outboards
• Yamaha 6H3 / 6F5 starter motor systems

Typically suits

• Engine models:
• Yamaha 60F two-stroke starter applications
• Yamaha 60FE / 60FETO starter applications where 6H3-81800-10 / 11 is specified
• Yamaha E60H / E60HM starter systems using the 6H3 starter family
• Yamaha 70B two-stroke starter applications
• Yamaha 70C two-stroke starter applications
• Yamaha 70E two-stroke starter applications
• Yamaha 70TLR / 70TR / 70ETL starter applications using the 6H3 starter motor family
• HP Range: commonly 60HP - 70HP
• Engine Type: Yamaha three-cylinder two-stroke outboard
• Year Range: approximately 1990-2009 for core 60HP / 70HP replacement-family coverage
• Starter Type: 12V, 9-tooth, counter-clockwise rotation

🔌 Function

The starter motor engages the flywheel ring gear and cranks the engine during electric starting.

⚠️ Common Signs of Failure

• Starter clicks but does not crank
• Slow cranking under load
• Starter gear fails to engage
• Grinding noise at flywheel
• Starter spins without turning the engine
• Worn brushes, bushings, armature or starter drive

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6H3-81800-11 later Yamaha starter motor reference
• 6H3-81800-10 earlier Yamaha starter motor reference
• 6F5-81800-11 related Yamaha starter motor reference in the same replacement family

OEM / Related Numbers

• 6H3-81800-11
• 6H3-81800-11-00
• 6H3818001100
• 6H3-81800-10
• 6H3-81800-10-00
• 6H3818001000
• 6F5-81800-11
• Hitachi: S108-97
• Hitachi: S108-97A

Aftermarket / Verified Equivalents

• Sierra: 18-6411
• ARCO: 3422
• API Marine / aftermarket reference: PH130-0050
• DB Electrical: 410-44083
• MES: 18311N
• Aftermarket reference: 6H3-81800-10 / 6H3-81800-11 / S108-97A

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated