Lubricants & Coolants


Komatsu Genuine Lubricants are engineered to the same high specifications you’ve come to expect from your Komatsu equipment. Made from premium base stocks blended with unique additives, these oils are designed to provide superior performance in all Komatsu machines. By using Komatsu Genuinefluids and filters, you can assure maximum fluid life and protection, thereby lowering your maintenance costs and long term operating costs.  Many Komatsu Genuine lubricants can also be used in non-Komatsu equipment and gain many of the same benefits.  Always consult your machine service and maintenance manual for proper application and change interval.  Your Komatsu distributor can provide you with the proper filters and fluids for your equipment, including specialty applications.


Komatsu EO15W40-LA

Tier IV Komatsu EO15W40LA-CJ

Komatsu EO15W40-LA is an advanced synthetic blend heavy duty engine oil for use in Komatsu Tier IV diesel engines and all makes and models requiring an API CK-4 or API CJ-4 engine oil. It is also designed for use in all prior Komatsu engine models and can replace Tier III and prior engine oil.

Komatsu DH Multi-Grade Engine Oils

Komatsu DH Multi-Grade Engine Oils are suitable for all diesel engines operating on high and low sulfur fuels, but only for engines that do not have DPF. Some of their features and benefits are: Outstanding level of wear prevention, High-temperature oxidation stability, Piston deposit and soot control, advanced cleanliness control, Lower maintenance cost.


Komatsu HO46 - HM

Komatsu HO46 - HM Hydraulic Oil is formulated from high quality mineral oils, they contain performance oriented anti-wear, rust, and oxidation inhibitors, and they protect against corrosion and wear in presence of moisture.

Komatsu HO56 - HE

Komatsu HO56 - HE hydraulic fluid is premium high viscosity index anti-wear hydraulic oil formulated for equipment that utilizes high performance pumps. It contains very effective anti-wear additives combined with shear stable polymers that meet or exceed industry vane, gear, and piston pump manufacturers’ specifications. This fluid is a highly dependable peak efficiency oil which meets the lubricant demands of precision industrial equipment. 

Biodegradable Hydraulic Oil 46

With government agencies requiring the use of biodegradable oils in machines for waterway jobs and other applications, we have engineered a biodegradable synthetic hydraulic oil that meets the strict specifications of Komatsu hydraulic systems. Achieve peak machine performance while being environmentally friendly with Genuine Komatsu biodegradable hydraulic oil.



The additive technology is designed to provide noted oxidation stability, anti-wear protection, and mild extreme pressure protection. Komatsu Powertrain Oils provide optimized friction retention for extended clutch life and slippage control under severe high load application. They are for use in Komatsu equipment transmissions, drive trains, swing machinery and hydraulic systems. Komatsu Powertrain Oils may also be used in many competitive brands of equipment requiring the use of an API CF quality oil. 

Automatic Transmission Fluid

Komatsu Automatic Transmission Fluid is a high performance lubricating oil and is recommended for use in all automatic transmissions requiring an Allison C-3 or C-4 fluid. It is made from selected highly refined base stocks coupled with high quality additives designed to reduce wear and improve component life. 

Hydraulic Transmission Fluid

Komatsu Hydraulic Oil is formulated from high quality mineral oils, it contains performance oriented anti-wear, rust, and oxidation inhibitors, and protects against corrosion and wear in presence of moisture.

Features and Benefits

  • Anti-scuffing performance for hydraulic pumps, motors, and control valves
  • Anti-wear performance for hydraulic pumps, motors, and control valves
  • Proper friction coefficient for smooth operation for wet brake in hydraulic motors
  • Lacquer prevention performance for pumps & Motors
  • Available in 10W-20

Gear and Axle

Axle Oils

Komatsu AXO80 is a mineral based, premium universal tractor transmission oil designed for use in off-road applications as well as agricultural tractors. Special friction modifying additives ensure optimum performance of oil immersed brakes while minimizing brake noise. It is also suited for hydraulic systems of tractors and ancillary equipment. Its selected additives and high quality base oils provide good low temperature fluidity and wear protection.

Gear Lubricants

Komatsu Gear Lubricants are thermally stable, multipurpose gear lubes having extreme pressure properties to protect hypoid and other gear types from scuffing and wear. These lubricants are suitable for adding to or filling most differentials and conventional transmissions in equipment, trucks or cars where an API GL-5 type lubricant is specified.

Komatsu Gear Lubricants are recommended for add or fill in:

  • All Komatsu equipment applications where a gear lubricant is recommended
  • Manual transmissions
  • Differential
  • Final drives
  • Truck rear axles
  • Passenger car rear axles\Agricultural, truck, industrial and construction equipment transmissions where GL-5 type lubricants are permitted.

Features & Benefits

  • Extreme pressure properties to protect hypoid and other gear types from scuffing and wear
  • High temperature stability
  • Longer fluid life
  • Sludge control / cleaner gears and transmissions
  • Available in 80W-90 and 85W-140 


Komatsu grease receives some of the highest industry ratings for load-carrying ability and adherence to components in the most severe conditions

Komatsu Hyper Grease G2-TE is the ultimate lubricant for performance challenging on and off highway environments. Komatsu Hyper Grease G2-TE’s unique multifunctional solid lubricant additive builds tack and adhesion when exposed to water saturated environments. Not only does Komatsu Hyper Grease G2-TE resist softening and washing out, it grows in tack and adhesion with continued exposure.

In high temperature environments, film strength is increased between metal surfaces, and the affinity for metal surfaces is enhanced. This produces a slippery physical barrier of protection. Komatsu Hyper Grease G2-TE’s enhanced load carrying ability is coupled with dramatic oxidative characteristics and high temperature structural stability for exceptional performance in heavily loaded bearings. Its environmental impact is reduced by not including Antimony, Barium, Lead, or Chlorinated Compounds. 

Features & Benefits

  • Enhanced extreme pressure and anti-wear performance
  • Bearing life greatly improved
  • Extended equipment life
  • Unique multifunctional, non-staining solid film lubricant
  • Better adhesion with improved mobility
  • Increased tack in the presence of water
  • Optimal off-highway and industrial performance for equipment durability
  • Excellent shear stability and very stable at high temperatures
  • Dependable performance under varying conditions for reduced maintenance costs


Coolant selection has significant implications. The life of your engine and radiator heavily depends on which coolant you select. It is important to use genuine products to provide long life protection from corrosion, cavitation, and other possible problems. Komatsu Super Coolant is designed with advanced technology which provides superior protection to all parts of the cooling system.

It is specially formulated to meet the high expectations and superior quality standards of Komatsu. It is enhanced with special additives for heavy-duty construction and mining machinery. It is a non-amine/non-nitrite type high-performance coolant that satisfies Komatsu Engineering Standards (KES).

Komatsu Super Coolant will not cause harm to any parts in the engine system such as hoses, seals, etc. It does NOT contain nitrites, silicates, or borates which are known to cause harm to various parts in the engine systems and can cause serious engine performance issues such as gelling and deposits.

Furthermore, Komatsu Super Coolant does not require a corrosion resistor, allowing a cost savings by eliminating it from the system. It extends your coolant change interval (see owner’s manual for details). Using genuine coolants provided by Komatsu helps you have fewer cooling systems problems and maintenance issues, resulting in less down time.