Mercury Exhaust Cover Gasket 414991

The Mercury 414991 Exhaust Cover Gasket is a genuine OEM gasket used on Mercury 2-cylinder 2-stroke outboards. It provides a precise seal between the exhaust cover and engine block to prevent exhaust and cooling water leaks.

Fitment Overview

This OEM gasket replaces earlier Mercury part numbers 41499 and 92332. These part numbers are used across Mercury 2-cylinder engines in the 15HP through 25HP range, including both recreational and commercial-duty models.

OEM diagram lookup confirms this gasket is used on engines that share the same exhaust cover design and sealing surface.

Compatibility

These engines share a common exhaust cover design where this gasket is required.

Example Model Applications

• Mercury 15HP and Super 15 outboards
• Mercury 18XD models
• Mercury 20HP, 20XD, and 20 Jet models
• Mercury 25HP and 25XD outboards
• Mercury Sea Pro and Marathon commercial engines

These are common applications. Always verify using your engine serial number or OEM diagram.

Fits These Serial Ranges

This gasket is used across multiple Mercury 2-cylinder engine generations and does not follow a single serial-number break.

Important: Confirm compatibility by matching your existing gasket to 414991, 41499, or 92332.

Looking for a more cost-effective aftermarket option?
View Sierra 18-2716 Exhaust Cover Gasket

Part Numbers and Cross References

What This Part Is Used For

This gasket seals the exhaust cover to the engine block, ensuring proper containment of exhaust gases and maintaining correct cooling system flow.

• Provides OEM-quality sealing between exhaust cover and block
• Prevents exhaust and water leaks
• Maintains proper cooling flow through the engine
• Ensures reliable long-term performance

Using a genuine OEM gasket ensures proper fitment and durability for long-term engine reliability.

System Function and Connections

• System Type: Exhaust system
• Component Type: Exhaust cover gasket
• Location: Between exhaust cover and engine block

FAQ

Is this a genuine Mercury part?
Yes, this is an OEM Mercury gasket.

What engines does this fit?
It fits Mercury 15HP through 25HP 2-cylinder 2-stroke outboards.

Does this replace older part numbers?
Yes, it replaces 41499 and 92332.

Why choose OEM?
OEM parts are manufactured to exact specifications for proper fit and long-term reliability.

Searchable Part Numbers

414991, 41499, 92332, Mercury 25HP gasket, Mercury 2-cylinder exhaust gasket, OEM Mercury gasket