Komatsu Heavy-Duty GL-5 85W-140 Gear Oil | Premium Extreme Pressure Axle & Final Drive Lubricant

Technical Specifications & Data：

Property	Value / Standard	Description
API Service Category	GL-5	Highest standard for extreme pressure gears
SAE Viscosity Grade	85W-140	High-load multigrade gear oil
Kinematic Viscosity @ 100°C	25.0 – 30.0 cSt	Thick protective film at high operating heat
Kinematic Viscosity @ 40°C	~340 cSt	Baseline thickness at startup
Viscosity Index (VI)	≥ 95	Solid resistance to thermal thinning
Flash Point (COC)	≥ 215°C (419°F)	Safe performance under high friction heat
Pour Point	-18°C (0°F)	Lowest fluid mobility temperature
Copper Strip Corrosion	Class 1a / 1b	Fully safe for internal bronze/yellow metals

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Product Overview：

Protect your heavy machinery’s high-torque drivetrain with the Komatsu Genuine GL-5 85W-140 Heavy-Duty Gear Oil. Specially engineered for the most punishing earthmoving, mining, and construction environments, this premium mineral gear lubricant is formulated with advanced Extreme Pressure (EP) additives.

It provides an unbreakable oil film for high-load hypoid gears, final drives, and differentials, ensuring smooth power transfer and preventing gear scoring under shocking peak loads and extreme ambient heat.

Application Fields & Equipment Compatibility

This high-viscosity gear oil is specifically designed for heavy equipment and commercial vehicles operating under extreme payloads, low-speed/high-torque conditions, or in hot climates.

Primary Application Fields:

Heavy Construction & Infrastructure: Ideal for heavy-duty bulldozers, large crawler excavators, and motor graders.
Mining & Quarrying: Perfect for high-tonnage rigid dump trucks, articulated haulers, and massive wheel loaders.
Agriculture & Forestry: Heavy tractors, harvesters, and forestry skidders with high-load final drives.
Commercial Transport: Heavy-duty truck differentials, hypoid axles, and non-synchronized manual transmissions requiring GL-5 performance.

Common Komatsu & Machinery Applications:

Komatsu Equipment: Universally applicable to Final Drives (Travel Motors/Reducers), Swing Machinery, Front/Rear Axle Differentials, and Transfer Cases of Komatsu machines (such as PC200, PC300, PC400, D65, D85, D155, WA380, WA470 series).
Cross-Brand Compatibility: Fully compatible with final drives and axles from Caterpillar (CAT), Shantui, Volvo, Hitachi, and XCMG requiring an SAE 85W-140, API GL-5 specification.

Application Fields & Equipment Compatibility