Description
The Mercury / Quicksilver 818298Q1 is a genuine OEM complete aluminum anode kit designed for MerCruiser Alpha One sterndrives, replacing all factory-installed anodes on the gearcase, trim tab, and transom assembly. Aluminum construction provides superior multi-water performance and longer service life compared to zinc.
Key Features
- Genuine Mercury / Quicksilver OEM anode kit
- Complete multi-anode kit — full sterndrive protection
- Aluminum alloy — superior for saltwater and brackish water
- Direct OEM replacement — exact fit and performance
- Covers gearcase, trim tab, and transom positions
- Longer lifespan vs zinc equivalent kit
Engine Compatibility
Designed for:
- MerCruiser Alpha One sterndrives (Gen I and Gen II — verify by serial number)
Protects:
- Gearcase housing
- Trim tab
- Transom bracket assembly
Serial Number Fitment Notice
- Always confirm OEM part number 818298Q1 against your drive serial number
- Kit contents may vary slightly by drive generation — verify with Mercury parts diagram
When This Part Needs Replacement
- Any anode in the kit is 50% or more consumed
- Visible corrosion on gearcase or transom hardware
- Annual service or seasonal haul-out
- Replace entire kit at once for balanced protection
Installation Notes
- Replace all anodes in the kit simultaneously
- Mount to clean, bare metal surfaces — do not paint anodes
- Ensure proper electrical contact at each mounting point
- Torque hardware to Mercury specification
Alternate / Cross-Reference Part Numbers
- Mercury / Quicksilver OEM: 818298Q1
- Also referenced as: 818298
- Zinc equivalent kit available
Parts Desk Insight
The Alpha One is one of the most common sterndrives on the water — and one of the most frequently under-protected. Replacing the full kit at haul-out is the right call: mixing old and new anodes creates uneven protection. Aluminum kits are now the go-to for boats operating in mixed or saltwater environments.
Shipping
Ships in 1–3 business days for fast Canada wide shipping.
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