6H2-W0001-21 Yamaha Lower Unit Gasket Kit | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Lower-Unit Gasket and Seal Kit - Part Number: 6H2-W0001-21

A genuine Yamaha gear-housing gasket and oil-seal kit for selected 60HP and 70HP two-stroke outboards.

The kit contains the principal seals, O-rings and gaskets required when dismantling and resealing the lower unit for driveshaft, propeller-shaft, shift-shaft or bearing service.

⚙️ Key Features

• Genuine Yamaha OEM lower-unit gasket kit
• Correct Yamaha part number 6H2-W0001-21
• Covers major gearcase sealing locations
• Suitable for 60HP and 70HP two-stroke lower units
• Recmar and Asaki replacement kits available

🚤 Compatibility

Commonly used on

• Yamaha 60HP and 70HP two-stroke lower-unit overhauls

Typically suits

• Engine models:
• Yamaha 60F
• Yamaha 60T and 60TLR
• Yamaha C60
• Yamaha E60
• Yamaha P60
• Yamaha 70B
• Yamaha 70T and 70TLR
• Yamaha C70
• Yamaha 60TLRC and 70TLR gearcases using the 6H2 seal-kit family
• HP Range: 60HP - 70HP
• Engine Type: Yamaha three-cylinder carburetted two-stroke outboard
• Year Range: Approximately 1980s - 2000s, dependent on gearcase

🔌 Function

The kit restores the lower unit's oil and water seals, keeping gear lubricant inside the housing and preventing water from entering around rotating shafts and service joints.

⚠️ Common Signs of Failure

Common signs the kit is required

• Gear oil appears milky or contaminated with water
• Lubricant leaks from the propeller shaft or driveshaft
• Fishing line has damaged the propeller-shaft seals
• Lower unit fails pressure or vacuum testing
• Seals are disturbed during gearcase rebuilding

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6H2-W0001-21 → Supersedes 6H2-W0001-20
• 6H2-W0001-20 earlier Yamaha gearcase gasket-kit reference

OEM / Related Numbers

• 6H2-W0001-21
• 6H2-W0001-21-00
• 6H2W00012100
• 6H2-W0001-20
• 6H2-W0001-20-00
• Related driveshaft seals, propeller-shaft seals, shift-shaft seals and carrier O-rings

Aftermarket / Verified Equivalents

• Recmar: REC6H2-W0001-20
• Asaki: 6H2-W0001-20 / 6H2-W0001-21
• Aftermarket 60HP / 70HP gear-housing seal kit

📦 Condition

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