Sierra 18-6133A Aluminum Anode Kit for Yamaha Outboards

The Sierra 18-6133A is an aluminum anode kit designed as a direct replacement for Yamaha outboard engines. This corrosion protection system is specifically engineered for saltwater and brackish water environments, providing critical defense against galvanic corrosion that can damage expensive engine components.

Key Features:

• Constructed from high-quality aluminum alloy for superior performance in salt and brackish water
• Designed to fit Yamaha 150-200 HP outboard engines (compatible with select 225-255 HP models)
• Complete kit includes mounting hardware for easy installation
• Meets or exceeds OEM specifications for reliable corrosion protection
• Sacrificial anode design directs corrosion away from shafts, propellers, rudders, and drive components

Sierra Marine is a market leader in aftermarket marine engine parts, offering comprehensive product lines backed by an unsurpassed customer satisfaction warranty. This anode kit cross-references to CMP part number CMY150KITA and Tecnoseal part number 21101AL, ensuring broad compatibility with OEM replacement needs.

Application: Yamaha outboard engines 150-255 HP (1988-2019 various models). Regular anode inspection and replacement is essential for protecting your marine engine investment from the damaging effects of electrolysis and galvanic corrosion in marine environments.