6H3-45111-13-8D Yamaha Upper Casing | Genuine Used Part

🔧 Product Description

Genuine Yamaha 60HP / 70HP Long Upper Casing - Part Number: 6H3-45111-13-8D

A genuine Yamaha long-shaft upper casing for selected 60HP and 70HP two-stroke outboards.

The casing forms the main midsection between the powerhead and gearcase, housing the driveshaft, exhaust muffler and cooling-water tube. It also supports the lower engine mounts and provides the gearcase mounting surface.

Part number 6H3-45111-13-8D replaces earlier long-casing reference 6H3-45111-12-4D.

⚙️ Key Features

• Genuine Yamaha OEM upper casing
• Correct current part number 6H3-45111-13-8D
• Supersedes 6H3-45111-12-4D
• Long-shaft 20.5-inch configuration
• Used on selected Yamaha 60HP and 70HP two-stroke engines

🚤 Compatibility

Commonly used on

• Yamaha 6H3-series 60HP and 70HP two-stroke midsections
• Long-shaft remote-control and tiller outboards

Typically suits

• Engine models:
• Yamaha 60FETO
• Yamaha 60FETOL
• Yamaha 60TLR
• Yamaha 70BET
• Yamaha 70BETO
• Yamaha 70TLR
• Yamaha E60H long-shaft models
• Yamaha 60HP and 70HP engines using the 6H3 long-casing platform
• HP Range: 60HP - 70HP
• Engine Type: Yamaha inline three-cylinder carburetted two-stroke outboard
• Shaft Length: Long / approximately 20.5 inches
• Year Range: Approximately 1994 onward

🔌 Function

The upper casing establishes the required shaft length and carries the driveshaft, exhaust and cooling-water passages between the powerhead and lower unit.

⚠️ Common Signs of Failure

• Corrosion around the exhaust passage
• Cracks following impact or grounding
• Gearcase mounting threads damaged
• Lower engine-mount points worn
• Water-tube or driveshaft alignment affected by distortion

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6H3-45111-13-8D → Supersedes 6H3-45111-12-4D
• 6H3-45111-12-4D earlier long upper-casing reference
• 6H3-45111-10-4D related earlier 6H3 casing reference

OEM / Related Numbers

• 6H3-45111-13-8D
• 6H345111138D
• 6H3-45111-12-4D
• 6H3-45111-10-4D
• 6H3-45111-01-8D related short-shaft casing
• 6H3-14711-11-CA related long-shaft exhaust muffler
• 6H3-45113-A0 related upper-casing gasket

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated