Case - IH 55 / 56

Differential fluid capacity & service interval

Case - IH 55 / 56 differential fluid capacity ranges from 5,25 to 7 liters. Service intervals include checking at 200 hours and changing at 800 hours. The data covers 5 configurations.

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

TypeSpecifications
  • 1056, 1056 XL (1985-1992)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 200 hours
  • Change 800 hours
  • Code: (4x4)
  • 1255 XL (1985-1995)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 200 hours
  • Change 800 hours
  • Code: (4x4)
  • 1455 XL (1985-1995)
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 200 hours
  • Change 800 hours
  • Code: (4x4)
  • 856 XL Turbo, XLA Turbo (1985-1992)
  • Front
  • Use: Normal
  • Capacity 5,25 liter
  • Check 200 hours
  • Change 800 hours
  • Code: (4x4)
  • 956, 956 XL (1985-1992)
  • Front
  • Use: Normal
  • Capacity 6 liter
  • Check 200 hours
  • Change 800 hours
  • Code: (4x4)

Additional Notes

  • The Case-IH 55/56 series front differential capacities span from 5.25 liters on the smaller 856 XL Turbo and XLA Turbo up to 7 liters on the 1255 XL and 1455 XL, reflecting the mechanical scaling between lighter and heavier tractor configurations.
  • The 856 XL Turbo and XLA Turbo carry a front differential capacity of 5.25 liters, the lowest figure across all listed configurations in the 1985-1992 production span.
  • Both the 956 and 956 XL share a 6-liter front differential capacity with the 1056 and 1056 XL, placing four distinct model variants at the same mid-range fill volume.
  • The 1255 XL and 1455 XL each hold 7 liters in the front differential, the highest capacity value recorded across the entire specification set, covering the 1985-1995 model years.
  • All five configurations share an identical service structure under normal use conditions: a fluid level check at 200 hours and a full fluid change at 800 hours, regardless of capacity differences between models.
  • The 800-hour change interval for front differential fluid is an hour-based maintenance schedule, which is standard practice for agricultural equipment where annual mileage is not a meaningful measure of wear.
  • The 200-hour check interval represents an intermediate inspection point, occurring four times before a single full fluid change is due at 800 hours.
  • The 1255 XL and 1455 XL share both the same 7-liter capacity and the same 1985-1995 production span, while the 856 XL Turbo, 956, 956 XL, 1056, and 1056 XL all fall within the narrower 1985-1992 range.

Other Systems