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replacing the gasket is critical to prevent leaks
we recommend replacing the impeller every 100 hours of operation or at least once per year
Final Steps: Re-install the carburetor
as it depends on usage (freshwater vs
it's wise to replace this filter every 100-200 service hours or annually
Thermostat 170°F / 77°C – Fits MerCruiser 4.3L, 5.0L, 5.7L & 6.2L Engines (Replaces Mercury 864493) 2-6 4-Stroke replacing the gasket is criticalProduct Details This is a direct replacement Thermostat 170F 77C Fits MerCruiser 4. 3L, 5. 0L, 5. 7L & 6. 2L Engines (Replaces 864493). It is designed for a wide range of MerCruiser V6 and V8 MPI sterndrive engines manufactured from 2000 to 2025, ensuring proper engine operating temperature for optimal performance and fuel efficiency. It serves as a direct interchange for multiple part numbers, including Mercury 864493, Sierra 18 43015, Mallory 9
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