64e-45300-24-8d Yamaha 25" extra long shaft gearbox | Genuine Used Part

🔧 Product Description

Genuine Yamaha 150HP-200HP V6 25-Inch Standard-Rotation Gearcase - Part Number: 64E-45300-24-8D

A genuine Yamaha 25-inch extra-long standard-rotation gearcase for selected 2.6-litre V6 150HP, 175HP and 200HP two-stroke outboards, including carburetted, EFI and HPDI families. The assembly uses the V6 large-gearcase architecture with a roughly 24¼-inch driveshaft and 20-spline powerhead connection.

⚙️ Key Features

• Genuine Yamaha V6 complete gearcase
• Correct part number 64E-45300-24-8D
• 25-inch extra-long shaft
• Standard propeller rotation
• Used on selected 150HP-200HP V6 two-strokes

🚤 Compatibility

• Yamaha 150FETO / L150 and related 150HP V6 models
• Yamaha 175DETO and related 175HP V6 models
• Yamaha 200FETO / L200 and related 200HP V6 models
• Yamaha SX / LX 150HP and 200HP families
• Yamaha Z150, Z175, Z200 and counter-model families where standard rotation is specified
• Approximate application era: 1998-2013
• 25-inch standard-rotation configuration only

🔌 Function

The heavy-duty V6 gearcase reduces engine speed, provides directional shifting, carries propeller thrust and pumps cooling water through the extra-long midsection.

⚠️ Common Signs of Failure

• Wrong standard or counter-rotation case is installed
• Gear ratio or driveshaft spline is incorrect
• Bearing carrier corrodes in place
• Gear oil contains metal or water
• Propeller shaft is bent
• Housing suffers skeg or cavitation-plate damage

🔄 Supersession & Cross Reference

OEM Supersession Chain

• Related revisions include 64E-45300-20, 21, 22, 23 and 24
• The suffix progression reflects production and internal changes and must be serial matched
• Counter-rotation and 20-inch units use separate assemblies

OEM / Related Numbers

• 64E-45300-20-8D
• 64E-45300-21-8D
• 64E-45300-22-8D
• 64E-45300-23-8D
• 64E-45300-24-8D
• Related 25-inch driveshaft, V6 gear set and bearing carrier

Aftermarket / Verified Equivalents

• SEI replacement Yamaha V6 150HP-200HP lower units where model and ratio are supported
• Southcentral and other specialist remanufactured Yamaha V6 25-inch units
• Aftermarket Yamaha / Sierra seal, bearing, clutch and water-pump kits

📦 Condition

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