McCormick X4 Series

AdBlue (DEF) capacity & service interval

McCormick X4 Series tractors utilize AdBlue (DEF) with a capacity range of 75-80 liters. The data covers 4 configurations.

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

TypeSpecifications
X4.20, Deutz C4DT45 (T4f) (2017-2022)
  • Use: Normal
  • Capacity 75-80 liter
X4.30, Deutz C4DT50 (T4f) (2017-2022)
  • Use: Normal
  • Capacity 75-80 liter
X4.40, Deutz C4DT55 (T4f) (2017-2022)
  • Use: Normal
  • Capacity 75-80 liter
X4.45, Deutz C4DT55 (T4f) (2017-2022)
  • Use: Normal
  • Capacity 75-80 liter

Additional Notes

  • The McCormick X4 Series AdBlue system is classified under selective catalyst reduction (SCR), a NOx aftertreatment technology that injects a urea-water solution into the exhaust stream to reduce nitrogen oxide emissions to meet Tier 4 Final (T4f) standards.
  • All four X4 variants covered in the specifications share an identical AdBlue tank capacity range of 75-80 liters, indicating a common tank design across the X4.20, X4.30, X4.40, and X4.45 configurations.
  • The capacity is expressed as a range rather than a fixed value, which typically reflects a fill tolerance or measurement variation between the minimum functional level and the maximum fill point of the tank.
  • A 75-80 liter AdBlue capacity is notably large relative to many agricultural tractors in a similar power class, suggesting an extended operating range between refills under field conditions.
  • The X4.20 and X4.30 use distinct Deutz engine variants, the C4DT45 and C4DT50 respectively, yet both share the same 75-80 liter AdBlue capacity as the higher-output X4.40 and X4.45 models.
  • The X4.40 and X4.45 are both fitted with the Deutz C4DT55 engine despite being separate model designations, and both carry the same 75-80 liter AdBlue specification, pointing to a shared powertrain and fluid system architecture between the two variants.
  • All specifications are recorded under normal use conditions, meaning the capacity figures apply to standard operating environments rather than severe-duty or high-load duty cycles.
  • The 2017-2022 year range applies uniformly across all four X4 variants in the AdBlue specifications, with no model-year-specific deviations recorded within that span.

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