Cylinder Head Gasket 6H4-11181-00 For YAMAHA Outbboard 3Cyl 30HP 40HP 50 HP 2T

Cylinder Head Gasket for Yamaha

This cylinder head gasket is a direct replacement sealing component for Yamaha 3-cylinder 2-stroke outboards, matching OEM reference 6H4-11181-00.

Overview

This cylinder head gasket is built for Yamaha 3-cylinder 2-stroke outboards in 30 HP, 40 HP, and 50 HP ratings. The 6H4-11181-00 cylinder head gasket seals the head joint and supports 2T models.

Built For Performance

• Replaces Yamaha OEM cylinder head gasket part 6H4-11181-00
• Fits 3-cylinder 2-stroke Yamaha outboard engines
• Compatible with 30 HP, 40 HP, and 50 HP models
• Forms a tight seal between cylinder head and block
• Used in top-end gasket replacement service

Fits These Machines

• for Yamaha 30 HP 3-cylinder 2-stroke
• for Yamaha 40 HP 3-cylinder 2-stroke
• for Yamaha 50 HP 3-cylinder 2-stroke

On-The-Job Use

• Cylinder head removal and reinstallation during outboard repair
• Restoring compression on high-hour Yamaha 2-stroke outboards
• Replacing warped or leaking head gaskets after overheating

Specs At A Glance

Good To Know

Q: What is the function of a cylinder head gasket? A: It seals the joint between the cylinder head and block to keep combustion pressure and coolant contained. Replacing a damaged gasket helps restore engine performance.

Q: Which models does this gasket fit? A: This gasket fits Yamaha 3-cylinder 2-stroke outboards in 30 HP, 40 HP, and 50 HP ratings. Check for OEM number 6H4-11181-00 before ordering.

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