YAMAHA OEM 10 Pin Main Harness Extension (6.6 ft) 688-8258A-10-00 30 ... 250 HP

Yamaha OEM 10-Pin Main Harness Extension – 6.6 ft (Part # 688-8258A-10-00)

This genuine Yamaha OEM main wiring harness extension adds 6.6 feet (approximately 2 meters) of length to connect your outboard engine to the main harness or 703 remote control box. Designed for reliable electrical connectivity in various boat setups, it's ideal for installations requiring extra reach, such as console-mounted controls, extended rigging, or custom layouts.

Key Features:

• Genuine Yamaha factory part for exact fit and compatibility
• 10-pin connector configuration
• Length: 6.6 ft (2 m)
• Durable construction to withstand marine environments

Compatibility: Fits select Yamaha outboard models from 1984–1993, including:

• 30 HP, 40 HP, 50 HP, 70 HP, 90 HP
• 115 HP, 130 HP, 150 HP, 175 HP, 200 HP, 225 HP, 250 HP

(Always verify exact fitment using your engine's model/year and serial number against Yamaha's official parts catalog or owner's manual, as compatibility can vary by specific configuration and remote control type.)

This extension supports standard 10-pin systems commonly used with Yamaha's 703 remote control boxes during that era. Use it to maintain factory-standard wiring integrity for ignition, gauges, trim, and other electrical functions.

Why Choose Genuine Yamaha? Authentic OEM parts ensure proper performance, durability, and seamless integration with your Yamaha outboard.

Search terms: Yamaha 688-8258A-10-00, Yamaha 10 pin harness extension, Yamaha outboard wiring extension, 6.6 ft main harness extension, Yamaha 30-250 HP harness 1984-1993.