Komatsu Forklift trucks, diesel - Tusk CX50 series

Coolant capacity & service interval

Komatsu Forklift trucks, diesel - Tusk CX50 series require 9 liters of coolant. Service intervals include checks every 8 hours and changes every 24 months or 4000 hours. The data covers 4 configurations.

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

TypeSpecifications
1000PD-10, Komatsu SAA4D95LE-5-A
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours
1100PD-10, Komatsu SAA4D95LE-5-A
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours
800PD-10, Komatsu SAA4D95LE-5-A
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours
900PD-10, Komatsu SAA4D95LE-5-A
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours

Additional Notes

  • All four models in the Komatsu Tusk CX50 series covered here — the 800PD-10, 900PD-10, 1000PD-10, and 1100PD-10 — share the same Komatsu SAA4D95LE-5-A engine, which accounts for the uniform cooling system specifications across the range.
  • The cooling system capacity is 9 liters across all four models. In a service context, this figure represents the total system fill volume, encompassing the engine block, cylinder head passages, radiator, and associated hoses rather than the radiator alone.
  • Coolant level checks are scheduled at every 8 hours of operation under normal use conditions. An 8-hour interval aligns with a standard single work shift, meaning a check is effectively due at the start or end of each shift.
  • The coolant change interval is set at 24 months or 4,000 hours under normal use conditions, whichever comes first. The dual-trigger structure accounts for both calendar degradation of coolant additives and operational wear, since a machine with low annual hours could still reach the time limit before the hour threshold.
  • The 4,000-hour mark for coolant replacement is a relatively extended interval, consistent with modern extended-life or pre-mixed coolant formulations that maintain corrosion inhibitor effectiveness over longer service periods compared to conventional coolants.
  • The identical 9-liter capacity across the 800PD-10, 900PD-10, 1000PD-10, and 1100PD-10 reflects the shared engine platform rather than differences in lift capacity rating, which varies across the series.

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