63V-11181-A2 Yamaha Gasket Cylinder Head 1 | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Cylinder Head Gasket 1 - Part Number: 63V-11181-A2-00

A genuine Yamaha OEM cylinder head gasket used on Yamaha 9.9HP and 15HP two-stroke outboards. This gasket seals the cylinder head to the cylinder block and is required during cylinder head removal, decarbon service, cooling passage repair or top-end service.

⚙️ Key Features

• Genuine Yamaha OEM cylinder head gasket
• Correct Yamaha part number 63V-11181-A2-00
• Supersedes earlier 63V-11181-A0 and 63V-11181-A1 gasket references
• Used on Yamaha 9.9HP and 15HP two-stroke engines
• Critical sealing component for compression and cooling-water separation

🚤 Compatibility

Commonly used on

• Yamaha 9.9HP two-stroke cylinder head assemblies
• Yamaha 15HP two-stroke cylinder head assemblies
• Yamaha 63V-series two-stroke powerhead service kits

Typically suits

• Engine models:
• Yamaha 9.9F two-stroke outboards
• Yamaha 9.9MSH / 9.9MLH applications where 63V-11181-A2 is specified
• Yamaha 9.9HP two-stroke applications from approximately 1995 / 1997 onward
• Yamaha 15F two-stroke outboards
• Yamaha 15MSH / 15MLH applications where 63V-11181-A2 is specified
• Yamaha 15HP two-stroke applications from approximately 1995 / 1997 onward
• Yamaha E9.9 and E15 two-stroke applications where listed by diagram
• Parsun / Yamaha-pattern 9.9HP and 15HP two-stroke applications using the matching gasket layout
• HP Range: 9.9HP - 15HP
• Engine Type: Yamaha two-stroke outboard
• Year Range: commonly mid-1990s onward depending on exact model
• Component Type: Cylinder head gasket

🔌 Function

The cylinder head gasket seals combustion pressure while separating the cooling-water passages from the combustion chamber and cylinder block.

⚠️ Common Signs of Failure

• Low compression
• Water entering combustion chamber
• Overheating from leaking cooling passage
• Cylinder head removed for service
• Combustion staining around gasket surface
• Hard starting or poor running after gasket failure
• Gasket cannot be reused after cylinder head removal

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 63V-11181-A2-00 later Yamaha cylinder head gasket reference
• 63V-11181-A1-00 earlier Yamaha cylinder head gasket reference
• 63V-11181-A0-00 earlier Yamaha cylinder head gasket reference

OEM / Related Numbers

• 63V-11181-A2-00
• 63V-11181-A2
• 63V11181A200
• 63V11181A2
• 63V-11181-A1-00
• 63V-11181-A1
• 63V11181A100
• 63V11181A1
• 63V-11181-A0-00
• 63V-11181-A0
• 63V11181A000
• 63V11181A0

Aftermarket / Verified Equivalents

• Sierra: 18-99140
• Recmar: REC63V-11181-A1
• Aftermarket reference: 63V-11181-A2
• Aftermarket reference: 63V-11181-A1
• Aftermarket reference: 63V-11181-A0
• Parsun reference: T15-04000100
• Yamaha / Parsun 9.9HP-15HP two-stroke cylinder head gasket replacement family

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging