Valtra (Valmet) N4 Active

Coolant capacity & service interval

Valtra (Valmet) N4 Active coolant capacity is 18 liters. Service intervals include checks every 10 hours and changes every 2400 hours or 24 months. The data covers 4 configurations.

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

TypeSpecifications
N134 Active (2015-2021)
  • Use: Normal
  • Capacity 18 liter
  • Check 10 hours
  • Change 2400 hours/ 24 months
N154 Active (2015-2021)
  • Use: Normal
  • Capacity 18 liter
  • Check 10 hours
  • Change 2400 hours/ 24 months
N154e Active (2015-2021)
  • Use: Normal
  • Capacity 18 liter
  • Check 10 hours
  • Change 2400 hours/ 24 months
N174 Active (2015-2021)
  • Use: Normal
  • Capacity 18 liter
  • Check 10 hours
  • Change 2400 hours/ 24 months

Additional Notes

  • The Valtra (Valmet) N4 Active cooling system holds 18 liters across all four variants: the N134, N154, N154e, and N174 Active, covering the 2015-2021 model years.
  • An 18-liter cooling system capacity is typical for mid-range agricultural tractors in this power class, reflecting the volume needed to maintain stable operating temperatures in the engine block, cylinder head, and associated heat exchangers.
  • The coolant level check interval is set at every 10 hours of operation under normal use conditions, which is a very short interval by general service standards and reflects the importance of early detection of leaks or low levels during initial operation periods.
  • The coolant change interval is specified at 2400 hours or 24 months, whichever comes first, under normal use conditions. The dual-trigger format means calendar time can mandate a change even when hour accumulation is low, as coolant degrades chemically over time regardless of engine runtime.
  • The N154e Active shares the same 18-liter capacity and identical service intervals as the N134, N154, and N174 Active variants, despite the "e" designation, which typically denotes an emissions-related engine variant in agricultural machinery.
  • The consistency of the 18-liter capacity and the 2400-hour/24-month change interval across all four engine variants in the N4 Active range indicates a shared cooling system architecture among the N134, N154, N154e, and N174 configurations for the 2015-2021 period.

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