Gasket Water Jacket Mercury 15-25hp 27-863895

Water Jacket Gasket for Mercury Marine

This water jacket gasket is designed for 15-25hp Mercury Marine engines and serves as a direct replacement for OEM part number 27-863895 to seal cooling passages and prevent coolant leaks.

Overview

This water jacket gasket from Mercury Marine's aftermarket range fits 15-25hp outboard motors. It works to replace the original gasket and restore proper sealing around the water jacket, maintaining engine temperature and preventing leaks. The gasket is a reliable component for cooling system repair.

Built For Performance

• Directly replaces Mercury Marine part number 27-863895
• Designed for 15-25hp Mercury outboard engines
• Seals the water jacket to prevent coolant loss
• Resists degradation from heat and coolant exposure
• Ensures consistent cooling system pressure

On-The-Job Use

• Replacing a worn water jacket gasket during cooling system repair
• Fixing external coolant leaks from the engine block
• Restoring proper engine temperature in aging outboards

Specs At A Glance

Good To Know

Q: Is this gasket compatible with all 15-25hp Mercury engines? A: It is designed for that range, but always verify your engine's specific model and serial number against the OEM part number.

Q: What causes a water jacket gasket to fail? A: Overheating or corrosion can degrade the gasket, leading to coolant leaks and poor engine performance.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.