Sierra 18-3302 Woodruff Impeller Key for Yamaha Outboard

The Sierra 18-3302 is a precision-engineered woodruff impeller key designed specifically for Yamaha outboard water pump systems. This essential drive unit component ensures proper impeller alignment and secure attachment within the water pump housing, playing a critical role in maintaining your outboard's cooling system performance.

Key Features:

• Constructed from marine-grade materials for superior durability and corrosion resistance
• Designed to meet or exceed OEM specifications and performance standards
• Direct replacement for Yamaha OEM part number 90280-04M05-00
• Sold individually for convenient replacement during water pump service
• Backed by Sierra's comprehensive customer satisfaction warranty

This woodruff key is compatible with a wide range of Yamaha outboard engines from 75hp to 300hp, covering both 2-stroke and 4-stroke applications from 1984 to 2019. The precision-manufactured design ensures easy installation and removal during routine water pump maintenance. Sierra marine engine parts are trusted by boaters worldwide for their reliability and value, offering aftermarket quality that matches or surpasses original equipment specifications.