Claas Celtis

Differential fluid capacity & service interval

Claas Celtis differential fluid capacity ranges from 5,5 to 6 liters. Service intervals include checking at 100 hours and changing at 1000 hours. The data covers 4 configurations.

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

TypeSpecifications
  • Celtis 426 (M3612DB/3612DA/3611DB) (2003-2008)
  • Front
  • Use: Normal
  • Capacity 5,5 liter
  • Check 100 hours
  • Change 1000 hours
  • Celtis 436 (M3622DB/3622DA/3621DB) (2003-2008)
  • Front
  • Use: Normal
  • Capacity 5,5 liter
  • Check 100 hours
  • Change 1000 hours
  • Celtis 446 (M3632DB/3632DA/3631DB) (2003-2008)
  • Front
  • Use: Normal
  • Capacity 5,5 liter
  • Check 100 hours
  • Change 1000 hours
  • Celtis 456 (M3642DB/3642DA) (2003-2008)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 100 hours
  • Change 1000 hours

Additional Notes

  • The front differential capacity across the Claas Celtis 426, 436, and 446 variants is 5.5 liters, a figure that reflects a service fill volume rather than a full overhaul or dry-fill quantity.
  • The Celtis 456 (M3642DB/3642DA) carries a front differential capacity of 6 liters, which is 0.5 liters greater than the capacity shared by the 426, 436, and 446 variants across the same 2003-2008 production span.
  • A fluid level check interval of 100 hours applies to the front differential on all four Celtis variants under normal use conditions, indicating a relatively frequent inspection cycle consistent with working agricultural equipment.
  • The fluid change interval for the front differential is set at 1000 hours across all four variants under normal use conditions, meaning a full drain-and-refill is due after ten times the number of hours required for a routine level check.
  • The 426, 436, and 446 each carry multiple chassis codes per variant — for example, the 426 covers M3612DB, M3612DA, and M3611DB — while the 456 is listed with only two codes (M3642DB and M3642DA), reflecting differences in the number of sub-configurations within each model.

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