Seaward Water Heater Magnesium Anode | Whale 74556 Quicksilver Thunderbolt They are compatible with many

They are compatible with many major engine brands like Mercury

For GM V6 and V8 engines with stamped steel timing covers

and Alpha I units s/n 2791957 and above

and 165 model straight 6 cylinder engines from 1964-1976

pick up a Sierra tune-up kit today and keep your outboard in peak condition

Seaward Water Heater Magnesium Anode | Whale 74556 Quicksilver Thunderbolt They are compatible with manySeaward Water Heater Magnesium Anode Whale 74556 Seaward Water Heater Magnesium Anode Whale 74556 Designed for Seaward water heater systems, this 3 4 in. NPT magnesium anode sacrifices itself to shield your tank from corrosion damage. Regular replacement maintains optimal protection and extends water heater longevity, making it an essential maintenance component for marine applications. Water heater anode 3 4 in. NPT Magnesium For Seaward water heaters