Komatsu Forklift trucks, diesel - BX20 series, -14

Automatic transmission fluid capacity & service interval

Komatsu Forklift trucks, diesel - BX20 series, -14 use automatic transmission fluid with a capacity of 11,8 liters. Service intervals include checks at 200 hours and changes at 1 months/200 hours or 6 months/1200 hours. The data covers 12 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • FD20T-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD20T-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow
  • FD20TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD20TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow
  • FD25T-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD25T-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow
  • FD25TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD25TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow
  • FD30T-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD30T-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow
  • FD30TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Normal
  • Capacity 11,8 liter
  • Check 200 hours
  • Change 6 months/ 1200 hours
  • Code: Torqflow
  • FD30TUS-14, Komatsu 4D94E
  • Powershift
  • Use: Initial service
  • Capacity 11,8 liter
  • Change 1 months/ 200 hours
  • Code: Torqflow

Additional Notes

  • All FD20T-14, FD20TUS-14, FD25T-14, FD25TUS-14, FD30T-14, and FD30TUS-14 models in the Komatsu BX20 series share an identical powershift transmission fluid capacity of 11.8 liters, indicating a uniform transmission assembly across the entire series regardless of load rating or chassis variant.
  • The Komatsu FD20T-14 powershift transmission carries an initial service fluid change interval of 1 month or 200 hours, whichever comes first. This shortened interval is standard practice for new or rebuilt powershift transmissions, as break-in wear particles and residual assembly contaminants accumulate rapidly during early operation.
  • Under normal use conditions, the change interval extends to 6 months or 1,200 hours for all BX20 series models listed. The dual-format interval means the fluid is replaced when either the time or the hour threshold is reached first, accommodating machines with varying levels of daily utilization.
  • A fluid level check at 200 hours is specified under normal use conditions for all listed models. No equivalent periodic check interval appears in the initial service rows, where the sole service action is the early fluid change at 1 month or 200 hours.
  • The initial service change interval of 200 hours aligns exactly with the normal-use check interval of 200 hours, meaning the first scheduled fluid change and the first routine level check fall at the same operating hour milestone.
  • The 11.8-liter capacity figure applies consistently to the powershift transmission across the FD20, FD25, and FD30 load class variants, all of which are equipped with the Komatsu 4D94E engine. A powershift transmission of this type typically requires a fluid volume sufficient to supply both the hydraulic torque converter circuit and the clutch pack lubrication circuit simultaneously.

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