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6H3-11181-A2 Yamaha Gasket | Genuine OEM Yamaha Outboard Part

6H3-11181-A2 Yamaha Gasket | Genuine OEM Yamaha Outboard Part

$102.64 AUD
$102.64 AUD
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🔧 Product Description

Genuine Yamaha Current-Service Cylinder Head Gasket - Part Number: 6H3-11181-A2

A genuine Yamaha current-service cylinder-head gasket for selected 50HP, 60HP and 70HP three-cylinder two-stroke outboards.

This gasket is the later replacement for the earlier 6H3-11181-00, -01, -A0 and -A1 versions.

⚙️ Key Features

  • Genuine Yamaha OEM cylinder-head gasket
  • Correct current part number 6H3-11181-A2
  • Completes the supersession chain from the earlier 6H3-11181 references
  • Seals combustion and cooling-water passages
  • Sierra 18-3831 and other aftermarket replacements available

🚤 Compatibility

Commonly used on

  • Yamaha 6H3-series three-cylinder powerheads

Typically suits

  • Engine models:
  • Yamaha 25B
  • Yamaha 50G
  • Yamaha 60F
  • Yamaha E60H
  • Yamaha C60
  • Yamaha 70B
  • Yamaha 70C
  • Yamaha 60TL and 70TL three-cylinder engines
  • HP Range: Commonly 50HP - 70HP, plus selected 25B models
  • Engine Type: Yamaha carburetted three-cylinder two-stroke outboard
  • Year Range: Approximately 1984 - 2019, dependent on cylinder-head design

🔌 Function

The gasket seals combustion pressure at the cylinder head while separating the cylinders from the cooling-water passages.

⚠️ Common Signs of Failure

  • Compression loss between cylinders
  • Water intrusion into a combustion chamber
  • Exhaust gas bubbles in the cooling system
  • Overheating or persistent misfire
  • Leakage around the cylinder-head joint

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 6H3-11181-A2 → Supersedes 6H3-11181-A1
  • 6H3-11181-A1 → Supersedes 6H3-11181-A0
  • 6H3-11181-A0 → Supersedes 6H3-11181-01
  • 6H3-11181-01 → Supersedes 6H3-11181-00
  • 6H3-11181-00 original Yamaha reference

OEM / Related Numbers

  • 6H3-11181-A2
  • 6H3-11181-A2-00
  • 6H311181A200
  • 6H3-11181-A1
  • 6H3-11181-A0
  • 6H3-11181-01
  • 6H3-11181-00
  • 6H3-11193-A1 related head-cover gasket

Aftermarket / Verified Equivalents

  • Sierra: 18-3831
  • Recmar: REC6H3-11181-A2
  • Asaki: 6H3-11181-A2
  • Yamarine: 6H3-11181-A2
  • YiheoZux: 6H3-11181-A2

📦 Condition

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