By applicationMineral base
TO-4 Transmission Oils
For transmissions, converters, and brakes of heavy-duty machinery
TO-4 transmission oils (Transmission Oil for off-highway machinery) are multi-function fluids that simultaneously lubricate the transmission, torque converter, wet disc brakes, and hydraulic systems of heavy-duty construction and mining machinery. Their specific formulation ensures correct wet disc brake behaviour (controlled friction coefficient).
Standards and specifications
Caterpillar TO-4Allison C-4Komatsu KES 07.868John Deere J13
Specifications
Temperature range-25°C / +120°C
ViscositiesSAE 10W, 30, 50
Lubricant baseMineral base
Custom formulation available
Characteristics
- Controlled friction coefficient for wet disc brakes
- Excellent EP protection for transmission gears
- High shear resistance (viscosity stability)
- Good compatibility with seals and clutches
- Anti-corrosion protection for copper and steel components
Typical applications
- Bulldozers, motor graders, and compactors
- Excavators with wet disc transmissions
- Wheel loaders and underground dump trucks
- Underground mining machinery
- High-power tractors with powershift transmission
Sectors
ConstructionMiningQuarryingHigh-power agricultureCivil engineering
Key advantages
- Single fluid for transmission + brakes + converter + hydraulics
- Meets OEM specifications without additional approval
- Protects brake discs from glazing and stick-slip
- Available in all SAE grades
Related oils
Need a datasheet, sample or quote?
Our technical team responds in less than 24h with full datasheet, safety data sheet and price offer.