Sierra 18-6783-1 Power Tilt and Trim Motor for Yamaha Outboard Motors

The Sierra 18-6783-1 is a direct-replacement power tilt and trim motor engineered for Yamaha outboard engines. Designed to restore proper hydraulic trim function, this motor features a 2-wire ring terminal connection and a durable plastic housing, making it a straightforward swap for worn or failed OEM units.

Key Features:

• 2-wire ring terminal connection for simple, clean installation
• 4-bolt mount design matches OEM mounting configuration
• Plastic housing built to withstand the harsh marine environment
• O-ring included for a complete, leak-free installation
• Meets or exceeds original equipment specifications
• Backed by Sierra's limited lifetime warranty against defects in workmanship and materials

Replaces OEM & Cross-Reference Part Numbers:

• Yamaha: 64E-43880-00-00, 64E-43880-01-00, 64E-43880-02-00, 64E-43880-03-00, 64E-43880-04-00
• Mallory: 9-18402

⚠ California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit P65Warnings.ca.gov.