Fully Synthetic

API Performance Level

Caterpillar TO-4

SAE Viscosity Grade



1L, 4L, 5L, 20L, 25L, 208L

Available Grades

SAE 60

SAE 50

SAE 30



TO-4 HD is specially designed for power shift transmissions, final drives and wet brakes on heavy duty off-highway equipment in earthmoving, mining, logging, road transport and agricultural applications. It is blended from premium quality base oils and proven performance additives.



  • Good compatibility with all common seals, O rings, packing materials and clutch materials that leads to reduced downtime.
  • Good low temperature fluidity.
  • Quick start up of equipment.
  • Excellent oxidation resistance and thermal stability for long fluid life.
  • Protects against sludge and varnish formation.
  • Protects against wear.
  • Protects against rust and corrosion
  • High shear stability
  • Foam resistance

PERFORMANCE LEVELS: Meets and Exceeds:

  • Caterpillar TO-4
  • Allison TES 439
  • Komatsu KES 07.868.1
  • Allison C-4
  • ZF TE-ML-03C
  • API GL-4


TO-4 HD specifically designed to meet the performance requirements of caterpillar TO-4, Komatsu power shift transmissions, ZF torque converter transmissions and Allison C-4 automatic transmission. It is also used for heavy duty manual transmissions, gear boxes, final drives and hydraulic systems used in off highway equipment. Recommended for industrial torque converters and  hydraulic systems where such type of fluids are specified.