6E5-45111-23-8D 6E5-45111-02-8D Yamaha F40 Upper Casing | Genuine Used Part

🔧 Product Description

Genuine Yamaha Upper Casing / Driveshaft Housing - Part Numbers: 6E5-45111-23-8D / 6E5-45111-02-8D

A genuine Yamaha upper casing used between the powerhead and gearcase on selected V4 and V6 two-stroke outboards.

Part number 6E5-45111-02-8D identifies the 20.3-inch long-shaft version, while 6E5-45111-23-8D identifies the 25.3-inch extra-long-shaft version. These are shaft-length variants rather than interchangeable supersession numbers, so the physical housing length must match the outboard being repaired.

⚙️ Key Features

• Genuine Yamaha upper casing and exhaust housing
• Long-shaft reference 6E5-45111-02-8D
• Extra-long-shaft reference 6E5-45111-23-8D
• Supports the powerhead, swivel assembly and gearcase
• Carries the exhaust, driveshaft, shift-rod and cooling-water passages

🚤 Compatibility

Commonly used on

• Yamaha V4 and V6 two-stroke upper-casing assemblies
• Long- and extra-long-shaft outboards using the 6E5 midsection platform

Typically suits

• Engine models:
• Yamaha 115B / 115BE
• Yamaha 115C / 115CETO
• Yamaha 115TLR / 115TXR
• Yamaha 130B / 130BETO
• Yamaha 130TLR / 130TXR / L130TXR
• Yamaha 150HP V6 two-stroke
• Yamaha 175HP V6 two-stroke
• Yamaha 200HP V6 two-stroke
• Yamaha 225HP V6 two-stroke
• Yamaha ProV and Saltwater-series V6 models using the 6E5 casing
• HP Range: 115HP - 225HP
• Engine Type: Yamaha V4 and V6 carburetted or fuel-injected two-stroke outboard
• Shaft Length: 20.3-inch or 25.3-inch, dependent on part number
• Year Range: Approximately 1980s-2004, dependent on model and shaft length

🔌 Function

The upper casing forms the structural midsection of the outboard. It supports the powerhead and lower unit while enclosing the driveshaft, shift rod, exhaust passage and cooling-water tube.

⚠️ Common Signs of Failure

• Cracking around engine-mount or gearcase attachment points
• Severe internal or external corrosion
• Damaged exhaust or cooling-water passages
• Distorted mating surfaces
• Broken studs or stripped mounting threads

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6E5-45111-02-8D → Supersedes 6E5-45111-01-8D
• 6E5-45111-01-8D → Related to earlier 6E5-45111-01-4D
• 6E5-45111-23-8D current extra-long-shaft service reference

OEM / Related Numbers

• 6E5-45111-02-8D - 20.3-inch casing
• 6E5-45111-23-8D - 25.3-inch casing
• 6E5-45111-01-8D
• 6E5-45111-01-4D
• 6E5-45155-00 related casing cap
• 6E5-42769-01 related upper-casing rubber seal

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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