90790-BS811 Yamaha GL5 Gear Case Lube 750ml | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamalube SAE 90 GL-5 Gearcase Lubricant - Part Number: 90790-BS811

Genuine Yamalube high-performance lower-unit gear oil formulated for heavily loaded Yamaha outboard gearcases.

The SAE 90 GL-5 lubricant contains extreme-pressure, anti-corrosion, oxidation-control and anti-foaming additives for high-output V6 and V8 lower units.

⚙️ Key Features

• Genuine Yamalube OEM gearcase lubricant

• Correct Yamaha part number 90790-BS811

• SAE 90 viscosity grade

• API GL-5 extreme-pressure performance

• Supplied in a 750ml squeeze bottle

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 90790-BS811 current Yamaha 750ml GL-5 gear-lube package reference

OEM / Related Numbers:

• 90790-BS811

• Yamalube GL-5 gearcase lubricant

• Yamalube SAE 90 lower-unit oil

• 750ml squeeze bottle

Aftermarket / Verified Equivalents:

• Marine SAE 90 GL-5 gear lubricant approved for the applicable Yamaha gearcase

• Quicksilver High Performance Gear Lube where an equivalent marine GL-5 lubricant is permitted

• Sierra high-performance marine gear lubricant

🚤 Compatibility

Commonly used on:

• Yamaha high-output V6 and V8 lower units

• Offshore, VMAX SHO and high-performance gearcases

Typically suits:

• Engine models:

• Yamaha V6 and V8 outboards approximately 200HP to 350HP

• Yamaha F200, F225 and F250 high-output gearcases

• Yamaha F300 and F350 V8 applications where GL-5 SAE 90 is specified

• Yamaha VF200 and VF250 VMAX SHO

• Yamaha 4.2L V6 Offshore engines from approximately 2010 onward

• Conventional and counter-rotation lower units requiring Yamaha GL-5 lubricant

• Product Type: SAE 90 API GL-5 marine gear oil

• Container Size: 750ml

• Application: High-load Yamaha outboard gearcases.

🔌 Function

The lubricant protects gears, bearings and shafts under high tooth pressure while resisting water contamination, oxidation, corrosion and foaming.

Common signs gear lubricant requires replacement:

• Oil appears milky or water-contaminated

• Metal particles are present

• Gearcase becomes noisy

• Lubricant is dark or burnt

• Service interval has been reached

📦 Condition

• Genuine Yamaha product

• Brand new

• Supplied in original packaging