6H1-43812-00 Yamaha Dust Seal | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Central Tilt-Ram Dust and Oil Seal - Part Number: 6H1-43812-00

A genuine Yamaha 18mm x 26mm x 5mm hydraulic seal used on the central tilt-cylinder ram of selected Yamaha outboards.

The seal wipes contamination from the tilt ram and retains hydraulic fluid around the moving rod. It is installed in the tilt-piston or cylinder-end assembly and should be renewed during hydraulic trim-unit rebuilding.

⚙️ Key Features

• Genuine Yamaha OEM hydraulic tilt-ram seal
• Correct Yamaha part number 6H1-43812-00
• Approximate dimensions: 18mm x 26mm x 5mm
• Used on central power-tilt cylinder assemblies
• Recmar and Parsun replacements available

🚤 Compatibility

Commonly used on

• Yamaha central power-tilt cylinder assemblies
• Yamaha 6H1-series tilt-piston sub-assemblies

Typically suits

• Engine models:
• Yamaha 60HP two-stroke
• Yamaha 70HP and 70B
• Yamaha 75HP and C75
• Yamaha 80HP
• Yamaha 85HP and C85
• Yamaha 90HP and 90A
• Selected Yamaha 115HP and 130HP trim units using the same central ram seal
• Parsun FL115 hydraulic trim assemblies using the equivalent 18 x 26 x 5 seal
• HP Range: Commonly 60HP - 130HP where specified
• Engine Type: Yamaha two-stroke and selected four-stroke outboard trim units
• Year Range: Approximately 1990s - 2010s, dependent on hydraulic unit

🔌 Function

The seal wipes salt, sand and water from the tilt ram while retaining pressurised hydraulic fluid inside the cylinder.

⚠️ Common Signs of Failure

• Hydraulic fluid leaking around the central tilt ram
• Engine slowly lowers after being tilted
• Salt or dirt collects around the ram seal
• Ram surface becomes scored or corroded
• Seal is hardened, split or damaged during disassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6H1-43812-00 current Yamaha OEM service reference

OEM / Related Numbers

• 6H1-43812-00
• 6H1-43812-00-00
• 6H1438120000
• 6H1-43810-11 related tilt-piston sub-assembly
• 6H1-43872-10 related backup ring
• 93210-18397 related hydraulic O-ring

Aftermarket / Verified Equivalents

• Recmar / Parsun: PAT85-06020003
• Parsun FL115: 18 x 26 x 5 trim seal
• Included in aftermarket 6H1-43810-11 tilt-piston assemblies

📦 Condition

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