McCormick X6 Series

Automatic transmission fluid capacity & service interval

McCormick X6 Series automatic transmission fluid capacity ranges from 7 to 87 liters. Service intervals include checks at 10 hours and changes at 6 months/500 hours or 12 months/1000 hours. The data covers 9 configurations.

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

TypeSpecifications
  • X6.413 P6-Drive, stage V / Tier 4f (2022- )
  • Hydraulic system
  • Use: Normal
  • Capacity 68-77 liter
  • Capacity 78-87 liter (Models with auxiliary hydraulic tank)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.414 P6-Drive, stage V / Tier 4f (2022- )
  • Hydraulic system
  • Use: Normal
  • Capacity 68-77 liter
  • Capacity 78-87 liter (Models with auxiliary hydraulic tank)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.415 P6-Drive, stage V / Tier 4f (2022- )
  • Hydraulic system
  • Use: Normal
  • Capacity 68-77 liter
  • Capacity 78-87 liter (Models with auxiliary hydraulic tank)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.420, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Normal
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.420, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Initial service
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Change 6 months/ 500 hours
  • X6.430, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Normal
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.430, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Initial service
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Change 6 months/ 500 hours
  • X6.440, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Normal
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • X6.440, T4i / IIIB (2014-2021)
  • Hydraulic system
  • Use: Initial service
  • Capacity 53-61 liter
  • Capacity 7 liter (Additional oil amount for optional front hitch)
  • Change 6 months/ 500 hours

Additional Notes

  • The McCormick X6 Series transmission and hydraulic system share a single combined fluid circuit, meaning the listed capacities cover both functions within one integrated sump rather than separate reservoirs.
  • The X6.413, X6.414, and X6.415 with Stage V / Tier 4f engines and P6-Drive transmission carry a base capacity of 68-77 liters, which is notably higher than the 53-61 liter range specified for the T4i / Tier IIIB variants from 2014-2021.
  • On Stage V / Tier 4f P6-Drive models equipped with an auxiliary hydraulic tank, total system capacity rises to 78-87 liters, reflecting the additional volume held in the supplementary tank rather than a change to the main transmission sump size.
  • The T4i / Tier IIIB models from 2014-2021 add 7 liters when fitted with an optional front hitch, an amount that accounts for the hydraulic lines and actuators associated with that attachment rather than the core transmission volume.
  • All variants across both emission tiers share the same normal-use fluid level check interval of every 10 hours, a frequency consistent with high-load agricultural equipment where contamination or consumption can occur rapidly.
  • The normal-use fluid change interval for all listed configurations is 1000 hours or 12 months, whichever comes first, applying equally to both the Stage V P6-Drive models and the T4i / Tier IIIB variants.
  • The T4i / Tier IIIB models from 2014-2021 carry an initial service interval of 500 hours or 6 months for the first fluid change. An initial service interval at half the normal duration is standard practice for breaking in new transmission components, as early operation generates fine metallic particles that accelerate wear if left in the fluid.
  • No initial service interval is listed for the Stage V / Tier 4f P6-Drive variants, whereas the 2014-2021 T4i / Tier IIIB models across the X6.420, X6.430, and X6.440 all carry that shortened first-change schedule.

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