Sierra 118-6420 Outboard Starter for Yamaha 20HP 25HP

The Sierra 118-6420 is a high-quality replacement outboard starter designed specifically for Yamaha outboard motors. This aftermarket starter is manufactured to meet or exceed all OEM specifications, providing reliable starting performance in demanding marine environments.

Key Features:

• Marine-grade construction that meets SAE J1171 and ISO 8846 standards
• High-quality magnets and field coils provide superior starting torque
• Double-sealed housings protect internal components from harsh marine conditions
• Premium brushes engineered for extended service life
• Direct replacement for Yamaha OEM starters

Compatibility:

• Yamaha 9.9 HP (1984-1997)
• Yamaha 15 HP (1984-1997)
• Yamaha 20 HP MLHU & MSHU (1996)
• Yamaha 20 HP MLHV & MSHV (1997)
• Yamaha 25 HP (1988-2009)

OEM Cross-Reference: Replaces Yamaha part numbers 6L2-81800-20-00, 682-81800-11-00, 682-81800-12-00, 6L2-81800-10-00, 6L2-81800-11-00, and Arco 3421. Use with starter drive assembly 18-5658 for complete installation.

Backed by Sierra's reputation for quality marine parts with over 50 years in the industry, this starter is built to withstand the harsh marine environment while delivering consistent, reliable performance season after season.