Description

Maintain a proper seal in your sterndrive or outboard gearcase with the Mercury MerCruiser Seal 8M0204693. This genuine Mercury Marine OEM sealing washer is designed for use with gearcase drain and vent screws, helping prevent gear oil leaks and protecting the gearcase from water intrusion.

The seal is installed beneath the drain or fill screw to create a watertight barrier between the screw head and the gearcase housing. Using OEM Mercury sealing washers ensures proper compression, corrosion resistance, and reliable sealing performance during routine gear lube service.

Key Features

• Genuine Mercury Marine OEM sealing washer

• Designed for gearcase drain and vent screw sealing

• Helps prevent gear oil leaks and water intrusion

• Corrosion-resistant construction for marine environments

• Ensures proper sealing during gear lube service

• Direct replacement for original Mercury sealing washers

Part Details

OEM Part Number: 8M0204693
Mercury Reference Number: 26-8M0204693
Product Type: Gearcase drain screw seal / washer

Material: Rubber-coated stainless steel
Application: Gearcase drain and vent screw sealing washer

Typical Packaging: Often sold individually or in service packs

Compatible Mercury & MerCruiser Engines

Used on many Mercury outboards and MerCruiser sterndrives equipped with standard gearcase drain and vent screws, including:

Mercury Outboards

• Mercury 2.5HP – 400HP outboards

• Mercury Two-Stroke outboards

• Mercury FourStroke outboards

• Mercury Pro XS outboards

• Mercury Verado outboards

MerCruiser Sterndrives

• Alpha One

• Alpha One Gen II

• Bravo One

• Bravo Two

• Bravo Three

Function

The gearcase sealing washer is installed beneath the drain or vent screw to ensure a watertight seal after servicing gear oil. A proper seal is critical to prevent leaks and to keep water from entering the gearcase.

Replacing worn seals helps:

• Prevent gear oil leaks

• Stop water intrusion into the gearcase

• Maintain proper lubrication of internal gears

• Protect sterndrive and gearcase components from corrosion

Important Compatibility Note

Gearcase drain screw seals can vary depending on gearcase design, screw size, and engine production year. Always verify compatibility using the engine or sterndrive serial number before ordering to ensure the correct seal.

Cross-Stock / Reference Part Numbers

• Mercury Reference Number: 26-8M0204693

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