Yamaha - Cover, upper mount - 663-44511-00-00 Mercury Outboard 10W-30 - 25W-40 - 25W-50 4-Stroke Oil relaxed routing through the engine

relaxed routing through the engine compartment while maintaining stable and reliable engine data communication

Crafted to meet Yamaha's stringent quality standards

You’ll need a 5-Way SmartCraft Junction Box (sold separately)

Marine-grade construction designed for long-term reliability

Works with three-liter Pro XS and XS OptiMax two hundred to three hundred horsepower engines

Yamaha - Cover, upper mount - 663-44511-00-00 Mercury Outboard 10W-30 - 25W-40 - 25W-50 4-Stroke Oil relaxed routing through the engine663 44511 00 00 COVER, UPPER MOUNT WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.