Ursus 02/04 series

Coolant capacity & service interval

Ursus 02/04 series coolant capacity ranges from 18 to 23 liters. Service intervals include checks every 8 hours and changes every 1600 hours. The data covers 4 configurations.

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

TypeSpecifications
1454 (1983-1985)
  • Use: Normal
  • Capacity 23 liter
  • Check 8 hours
  • Change 1600 hours
902, 904 (1983-1985)
  • Use: Normal
  • Capacity 18-20 liter
  • Check 8 hours
  • Change 1600 hours
1604 (1979-1985)
  • Use: Normal
  • Capacity 23 liter
  • Check 8 hours
  • Change 1600 hours
1002, 1004 (1978-1985)
  • Use: Normal
  • Capacity 21-23 liter
  • Check 8 hours
  • Change 1600 hours

Additional Notes

  • The Ursus 02/04 series coolant system capacities span a range across model variants, from 18-20 liters in the 902 and 904 to 23 liters in the 1454 and 1604, reflecting differences in engine displacement and cooling circuit size between the smaller and larger models.
  • The 1002 and 1004 carry a capacity range of 21-23 liters rather than a fixed value, which indicates a fill tolerance within the cooling system rather than a single precise volume.
  • Similarly, the 902 and 904 specify 18-20 liters as a range, meaning acceptable fill levels fall within that band rather than at one exact figure.
  • The 1454 and 1604 both specify a fixed 23-liter capacity, representing the upper end of the coolant volume found across the 02/04 series lineup.
  • All four configurations share an 8-hour check interval, which in agricultural equipment terms corresponds to a daily inspection cadence tied to a standard working shift.
  • The change interval of 1600 hours applies uniformly across all listed variants under normal use conditions, placing full coolant replacement on a long-term maintenance cycle rather than a seasonal or annual one.
  • The 902 and 904 entered the specification record in 1983, while the 1002 and 1004 were present from 1978, meaning the smaller-displacement models joined the lineup later despite carrying a lower capacity rating.
  • The 1604, with production beginning in 1979, shares the same 23-liter fixed capacity and identical service intervals as the 1454, which did not appear until 1983.

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