Description

Mercury MerCruiser / Quicksilver Wear Plate – 8M0204674

Maintain proper cooling system performance with the genuine Mercury Marine / Quicksilver 8M0204674 Wear Plate. This OEM wear plate is installed inside the seawater pump assembly, providing a smooth surface for the impeller to rotate against while protecting the pump housing from wear and damage.

Manufactured to Mercury Marine’s original equipment specifications, the wear plate helps maintain optimal water pump efficiency and extends the life of the pump housing and impeller.

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Key Features

• Genuine Mercury / Quicksilver OEM wear plate

• Installed in the seawater / raw-water pump assembly

• Provides a smooth surface for impeller operation

• Helps prevent pump housing wear and performance loss

• Designed for direct replacement during water pump service

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Part Details

• OEM Part Number: 8M0204674

• Product Type: Water pump wear plate / impeller backing plate

• Typically replaced during water pump rebuild or impeller service

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Superseded / Cross-Reference

This wear plate replaces or cross-references earlier Mercury part numbers including:

• 94576

• 72778

• Sierra aftermarket equivalent: 18-3350

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Compatible Mercury MerCruiser Applications

Commonly used with MerCruiser seawater pump assemblies, including pumps such as:

• 46-72774A32 seawater pump

• Various MerCruiser V6 and V8 sterndrive engines depending on configuration and serial number range.

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Function

The wear plate sits beneath the water pump impeller, creating a flat sealing surface that allows the rubber impeller vanes to form proper suction and move cooling water through the engine. Over time, friction can wear the plate, reducing pump efficiency and water flow.

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Important Compatibility Note

Water pump components vary depending on pump model, engine configuration, and serial number range. Always verify compatibility using the engine or pump part number before ordering.

Shipping: Ships same or next day for fast Canada wide shipping.