Komatsu Telehandlers, LW/WH

Coolant capacity & service interval

Komatsu Telehandlers, LW/WH utilize coolant with a capacity range of 20 to 40 liters. Service intervals include checks every 8 hours and changes every 24 months or 2000 hours. The data covers 6 configurations.

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

TypeSpecifications
WH609 (2004-2009)
  • Use: Normal
  • Capacity 20 liter
  • Check 8 hours
  • Change 24 months/ 2000 hours
WH613 (2004-2009)
  • Use: Normal
  • Capacity 20 liter
  • Check 8 hours
  • Change 24 months/ 2000 hours
WH713 (2004-2009)
  • Use: Normal
  • Capacity 20 liter
  • Check 8 hours
  • Change 24 months/ 2000 hours
WH714 (2004-2006)
  • Use: Normal
  • Capacity 20 liter
  • Check 8 hours
  • Change 24 months/ 2000 hours
WH716 (2004-2009)
  • Use: Normal
  • Capacity 20 liter
  • Check 8 hours
  • Change 24 months/ 2000 hours
LW250-5
  • Use: Normal
  • Capacity 40 liter
  • Check 8 hours

Additional Notes

  • The Komatsu LW250-5 cooling system holds 40 liters, which is double the 20-liter capacity shared by all WH-series models in the same lineup. A larger cooling system capacity generally corresponds to a higher-displacement or more thermally demanding engine configuration.
  • The LW250-5 specifications include only a check interval of every 8 hours, with no change interval listed. The WH-series models each carry a full change interval alongside the same 8-hour check requirement.
  • The 8-hour check interval across all models aligns with a standard daily service check in heavy equipment operation, where coolant level and condition are verified at the start or end of each shift.
  • The WH609, WH613, WH713, WH714, and WH716 all share an identical coolant change interval of 24 months or 2,000 hours under normal use conditions, whichever comes first. The dual-trigger format means calendar time and operational hours are both active limits.
  • A 2,000-hour coolant change interval is a moderately extended service cycle, commonly associated with modern extended-life coolant formulations that resist silicate depletion and corrosion inhibitor breakdown over longer periods.
  • The WH714 covers the 2004-2006 model years, a narrower span than the 2004-2009 range of the WH609, WH613, WH713, and WH716, though the cooling system capacity and service intervals remain identical across all five WH models.
  • All six models specify normal use conditions for the listed cooling system intervals. In heavy equipment service, normal use typically reflects standard operating temperatures and duty cycles without sustained extreme load or environmental stress.

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