McCormick X8 Series

Coolant capacity & service interval

McCormick X8 Series coolant capacity ranges from 27 to 29 liters. Service intervals include checking every 10 hours and changing every 2000 hours or 24 months. The data covers 5 configurations.

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

TypeSpecifications
X8.627 VT-Drive, Stage V (2022- )
  • Use: Normal
  • Capacity 27 liter
  • Change 2000 hours/ 24 months
X8.631 VT-Drive, Stage V (2022- )
  • Use: Normal
  • Capacity 27 liter
  • Change 2000 hours/ 24 months
X8.660 VT-Drive (2017-2022)
  • Use: Normal
  • Capacity 27 liter
  • Capacity 29 liter (+ front hitch)
  • Check 10 hours
  • Change 2000 hours/ 24 months
X8.670 VT-Drive (2017-2022)
  • Use: Normal
  • Capacity 27 liter
  • Capacity 29 liter (+ front hitch)
  • Check 10 hours
  • Change 2000 hours/ 24 months
X8.680 VT-Drive (2017-2022)
  • Use: Normal
  • Capacity 27 liter
  • Capacity 29 liter (+ front hitch)
  • Check 10 hours
  • Change 2000 hours/ 24 months

Additional Notes

  • The McCormick X8 Series cooling system capacity is 27 liters across all listed configurations, covering both the 2017-2022 VT-Drive models and the Stage V variants introduced from 2022.
  • On the X8.660, X8.670, and X8.680 VT-Drive models from 2017-2022, fitting a front hitch raises the cooling system capacity from 27 liters to 29 liters, reflecting the additional coolant volume required by the expanded circuit.
  • The 2-liter difference between the standard and front hitch configurations on the 2017-2022 models represents a meaningful fill distinction, as underfilling a system specified at 29 liters with only 27 liters could leave part of the circuit without adequate coolant coverage.
  • A coolant level check interval of 10 hours is specified for the X8.660, X8.670, and X8.680 VT-Drive models, which is a very short interval consistent with initial break-in or routine operator monitoring rather than a scheduled maintenance event.
  • The Stage V X8.627 and X8.631 VT-Drive specifications do not carry the 10-hour check interval present in the 2017-2022 rows, with only the full change interval listed for those configurations.
  • All five configurations share an identical coolant change interval of 2000 hours or 24 months under normal use conditions, whichever comes first, meaning calendar time can trigger a change even when the hour threshold has not been reached.
  • A 2000-hour change interval is relatively extended for agricultural equipment cooling systems, indicating the use of a long-life coolant formulation capable of maintaining corrosion inhibitor effectiveness over that service period.

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