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Reinstall the propeller
Product Type Installation Tool Installation Manual
Symptoms of a bad filter include engine hesitation
and interchanges with Sierra 18-3215 and GLM 12107
Water Pump Impeller Kit – Fits Mercury Marine 2-Cycle Outboards 30-70 HP (Replaces Mercury 46-77177A3, Sierra 18-3324) 200-300HP Reinstall the propellerProduct Details This Water Pump Impeller Kit is a complete assembly designed to restore the cooling system on Mercury and Mariner 2 cycle outboards from 30 to 70 HP (19771997). The kit includes the impeller, housing, gaskets, and all necessary hardware for a full replacement, ensuring your engine maintains proper operating temperature. It serves as a direct replacement for Mercury parts 46 77177A3 77177A3 and interchanges with Sierra 18 3324, GLM
