Starter Motor for Yamaha 20HP–40HP & Mercury / Mariner Outboards | OEM 65W-81800-00

GOOFIT Marine-Grade Electric Starter – 20HP to 40HP Multi-Fit Series

One motor, versatile reliability. The GOOFIT 12V Performance Marine Starter is a professional-grade replacement engineered for mid-range 4-stroke outboard engines. This high-torque motor is a cross-compatible solution designed to meet the exact performance standards of both Yamaha and Mercury/Mariner powerheads, ensuring your vessel is ready for the water with a single turn of the key.

Manufactured using high-corrosion-resistance alloys and premium internal components, this starter is built to withstand the humidity and salt-spray of the marine environment. Whether you are replacing a worn-out unit on a weekend fishing boat or a hardworking commercial tender, this motor offers the durability and "plug-and-play" convenience you need.

Product Compatibility

This motor is a direct replacement for the following 4-stroke outboard engines:

• Yamaha Outboards: 20HP, 25HP, 30HP, and 40HP models.
• Mercury / Mariner Outboards: 25HP, 30HP, and 40HP models.
• Yamaha OEM Cross-Reference: 65W-81800-00, 65W-81800-01, 65W-81800-02, 65W-81800-03.
• Mercury OEM Cross-Reference: 830308T, 859169T, 888151T, 893886T.

Key Technical Specifications:

• Voltage: 12V DC.
• Rotation: Standard Outboard Rotation.
• Installation: Simple bolt-on design with factory-matched wiring terminals.
• Build: Industrial-grade housing for maximum thermal stability.

Why Choose the GOOFIT Multi-Fit Marine Starter?

• Universal Compatibility: One of our most versatile units, specifically designed to bridge the gap between Yamaha and Mercury platforms, making it an essential spare for any boat owner.
• Superior Cranking Torque: Optimized to turn over mid-displacement 4-stroke pistons instantly, reducing the cranking time and preventing excessive battery drain.
• Ruggedized for the Sea: Features specialized internal seals and coatings that protect the armature from the oxidation that typically causes factory starters to fail in marine settings.
• Hassle-Free Replacement: Precision-manufactured to match the original footprint, allowing for a quick DIY installation with no special tools or modifications required.