Description

Ensure proper sealing of the gearcase drain and vent screws with the Mercury MerCruiser Gasket 8M0204692. This genuine Mercury Marine OEM gasket is designed to create a watertight seal between the gearcase drain or vent screw and the gearcase housing during gear lube service.

The gasket compresses when the screw is tightened, preventing gear oil leaks while protecting the gearcase from water intrusion. Using OEM Mercury sealing components ensures correct fitment, proper compression, and reliable sealing performance in harsh marine environments.

Key Features

• Genuine Mercury Marine OEM gearcase gasket

• Designed for gearcase drain and vent screw sealing

• Helps prevent gear oil leaks and water intrusion

• Corrosion-resistant design for marine environments

• Ensures proper sealing during gear lube service

• Direct replacement for original Mercury sealing gaskets

Part Details

OEM Part Number: 8M0204692
Mercury Reference Number: 26-8M0204692
Product Type: Gearcase drain screw gasket / sealing washer

Material: Sealing gasket material designed for marine gearcase applications
Application: Gearcase drain and vent screw sealing gasket

Typical Packaging: Individual gasket or sold in service packs

Compatible Mercury & MerCruiser Engines

Used on many gearcases with standard 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 gasket installs under the drain or vent screw to provide a proper seal after gear lube service. Maintaining a tight seal is critical to keep gear oil inside the gearcase and prevent water contamination.

Replacing worn gaskets 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 gaskets may 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 gasket.

Cross-Stock / Reference Part Numbers

• Mercury Reference Number: 26-8M0204692

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