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Heavy-duty gear oils for mining trucks, construction machinery, hypoid axles and final drives. Available in API GL-5 grades including 75W-90, 80W-90 and 85W-140, with OEM and bulk supply.

Heavy Duty Transportation Vehicles
Construction Machinery
Mining Machinery
Port Machinery
Agricultural Machinery
Industrial Equipment
Maritime and Inland Vessels
Heavy Duty Gear Oil
Heavy Duty Gear Oil GL-4 80W-90 for Transmissions & Axles
Heavy Duty Gear Oil GL-4 80W-90 is a high-performance gear lubricant formulated with premium base oils and advanced additive technology. It is designed for manual transmissions, drive axles, and rear axles in commercial vehicles and construction machinery, providing reliable protection against wear, scoring, and thermal degradation under moderate to severe operating conditions.
Heavy Duty Gear Oil GL-5 75W-90 for Hypoid Gears & Axles
GL-5 75W-90 heavy-duty gear oil is formulated for hypoid gears, drive axles and gear sets that operate under sliding contact, shock load and high torque. It is suitable for trucks, mining support vehicles, construction machinery, pickup fleets and heavy-duty drivetrains requiring GL-5 extreme-pressure protection. This product helps protect gear teeth and bearings from scoring, pitting and wear while supporting stable lubrication across a broad temperature range. It is a strong fit for customers who need axle and gear oil for mixed fleets, off-road equipment and heavy vehicles working in construction, mining and logistics.
GL-5 80W-90 Axle and Gear Oil
GL-5 80W-90 axle and gear oil is designed for heavy-duty axles, hypoid gears and drivetrain components that require dependable extreme-pressure protection. It is suitable for trucks, buses, mining equipment, construction machinery and other vehicles working under high torque, low speed and shock load. The formulation helps maintain gear tooth protection, reduce wear and support stable operation in demanding service. It is a practical grade for fleet maintenance teams and distributors serving heavy transport, infrastructure, quarry and off-road equipment markets.
Heavy Duty Gear Oil GL-5 80W-140 for Extreme Load Axles & Hypoid Gears
Heavy Duty Gear Oil GL-5 80W-140 is a high-performance extreme pressure (EP) gear lubricant formulated with deeply refined base oils and advanced additive technology. Designed for heavy-duty axles, hypoid gear systems, and industrial transmissions, it provides outstanding protection under high load, high temperature, and shock load conditions. This gear oil ensures superior wear protection, oxidation stability, and extended oil drain intervals for demanding applications.
Heavy Duty Gear Oil GL-5 85W-90 for Hypoid Gears & Axles
Heavy Duty Gear Oil GL-5 85W-90 is a premium extreme pressure (EP) gear lubricant formulated with deeply refined base oils and advanced additive technology. It is designed for hypoid gears, drive axles, and heavy-duty transmissions, providing reliable protection against wear, scuffing, and oxidation under high load, high temperature, and shock conditions. This gear oil ensures stable performance and extended service life in demanding automotive and industrial applications.
GL-5 85W-140 Heavy-Duty Axle Gear Oil
GL-5 85W-140 heavy-duty axle gear oil is formulated for severe-service axles and gear sets operating under high torque, high temperature and heavy shock loads. It is especially suitable for mining trucks, quarry vehicles, heavy-duty construction machinery, older drivetrains and equipment working in hot climates. The high-viscosity grade helps maintain a durable lubricating film in heavily loaded gears and bearings. It supports protection against scoring, wear and pitting where equipment works under slow speed, heavy load and continuous duty.
Long Life Gear Oil
Long Life Gear Oil GL-4 75W-80 for Manual Transmissions
Long Life Gear Oil GL-4 75W-80 is a high-performance manual transmission oil formulated with synthetic base oils and advanced additive technology. It is specifically designed for synchronized gearboxes in commercial vehicles, delivering excellent friction control, improved fuel efficiency, and extended service life. This gear oil effectively reduces transmission operating temperature and enhances overall gearbox performance under demanding driving conditions.
Long Life Gear Oil GL-5 75W-140 for Heavy-Duty Axles & Transmissions
Long Life Gear Oil GL-5 75W-140 is a premium high-performance extreme pressure (EP) gear lubricant designed for heavy-duty transmissions, drive axles, and final drives. Formulated with refined base oils and advanced additive technology, it delivers outstanding protection under high load, high temperature, and shock load conditions. This gear oil significantly reduces operating temperatures, enhances drivetrain efficiency, and extends equipment service life.
Long Life Gear Oil GL-5 80W-140 for Heavy-Duty Axles & Final Drives
Long Life Gear Oil GL-5 80W-140 is a premium high-viscosity extreme pressure (EP) gear oil designed for heavy-duty transmissions, drive axles, and final drives operating under extreme load, high temperature, and shock conditions. Formulated with refined base oils and advanced additive technology, it enhances drivetrain protection, reduces operating temperatures, and significantly extends equipment service life.
Long Life Gear Oil GL-5 85W-140 for Extreme Heavy-Duty Axles & Final Drives
Long Life Gear Oil GL-5 85W-140 is a premium high-viscosity extreme pressure (EP) gear oil formulated for heavy-duty transmissions, drive axles, and final drives. Engineered with refined base oils and advanced additive technology, it provides superior protection under extreme load, high torque, and high-temperature conditions, effectively reducing operating temperatures and extending equipment service life.
Full Synthetic Heavy Duty Gear Oil
‌Gear Oil LSD‌

Not sure which specification suits you best?


Gear Oil for Mining Trucks and Heavy-Duty Axles


Mining trucks, wheel loaders, haulage vehicles and heavy-duty axles work under high torque, shock loading, dust and long operating hours. YUANGEN heavy-duty gear oils are formulated for hypoid gears, axle assemblies and final drives that require strong extreme-pressure protection and stable oil film strength.


Using incompatible gear oil may cause axle wear, overheating and downtime. Choose GL-5 gear oil by OEM specification, axle load and operating temperature: GL-5 75W-90, GL-5 80W-90 or GL-5 85W-140.
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