Steyr 900

Differential fluid capacity & service interval

Steyr 900 differential fluid capacity ranges from 4,3 to 4,5 liters. Service intervals include checks every 12 months or 500 hours and fluid changes every 24 months or 1000 hours. The data covers 20 configurations.

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

TypeSpecifications
  • 942, 942a II (1996- )
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 942, 942a II (1996- )
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 948, 948a Turbo II (1996- )
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 948, 948a Turbo II (1996- )
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 955, 955a [chassisno. 1739 ->] (1996- )
  • Front
  • Use: Normal
  • Capacity 4,3 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 955, 955a [chassisno. 1739 ->] (1996- )
  • Front, limited slip
  • Use: Normal
  • Capacity 4,3 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 964, 964a Turbo [chassisno. 1739 ->] (1996- )
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 964, 964a Turbo [chassisno. 1739 ->] (1996- )
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 970a Turbo [chassisno. 1739 ->] (1996- )
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 970a Turbo [chassisno. 1739 ->] (1996- )
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 942, 942a I (1992-1996)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 942, 942a I (1992-1996)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 948, 948a Turbo I (1992-1996)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 948, 948a Turbo I (1992-1996)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 955, 955a [chassisno. -> 1738] (1992-1996)
  • Front
  • Use: Normal
  • Capacity 4,3 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 955, 955a [chassisno. -> 1738] (1992-1996)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,3 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 964, 964a Turbo [chassisno. -> 1738] (1992-1996)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 964, 964a Turbo [chassisno. -> 1738] (1992-1996)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 970a Turbo [chassisno. -> 1738] (1992-1996)
  • Front
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)
  • 970a Turbo [chassisno. -> 1738] (1992-1996)
  • Front, limited slip
  • Use: Normal
  • Capacity 4,5 liter
  • Check 12 months/ 500 hours
  • Change 1000 hours/ 24 months
  • Code: (4x4)

Additional Notes

  • The Steyr 900 front differential fluid capacity across all listed variants falls into one of two values: 4.5 liters for the 942, 942a, 948, 948a Turbo, 964, 964a Turbo, and 970a Turbo, and 4.3 liters for the 955 and 955a. The 0.2-liter difference between these groups reflects a physically smaller front differential housing on the 955 and 955a variants.
  • The 4.3-liter capacity on the 955 and 955a applies equally to both the standard front differential and the limited slip front differential, across both the chassis number up-to-1738 (1992-1996) and chassis number 1739-onward (1996- ) production breaks.
  • Chassis number 1738 and 1739 serve as the dividing point between Series I and Series II designations for the 955, 955a, 964, 964a Turbo, and 970a Turbo. The 942, 942a and 948, 948a Turbo use a Roman numeral I and II designation without a chassis number boundary in the specifications.
  • All front differential fluid intervals across every listed variant follow a dual-criteria schedule: a fluid check at 12 months or 500 hours, whichever comes first, and a fluid change at 1000 hours or 24 months, whichever comes first. The use of both a time-based and an hour-based threshold reflects the operational nature of agricultural machinery, where annual usage hours can vary considerably.
  • The check interval of 500 hours falls at exactly half the change interval of 1000 hours, meaning a fluid check occurs at the midpoint between drain intervals. The 12-month check and 24-month change follow the same halving relationship on the calendar side.
  • The limited slip front differential on every listed variant shares an identical fluid capacity and service interval with the standard front differential of the same variant. A limited slip differential contains an additional clutch pack or friction mechanism, which in many applications requires a fluid with specific friction modifier properties, though the capacity figure itself remains 4.5 liters or 4.3 liters depending on the variant group.
  • All specifications are listed under normal use conditions. In agricultural equipment contexts, a normal use classification typically refers to standard field and road operation as opposed to sustained high-load or extreme-environment conditions.
  • The 948, 948a Turbo and 942, 942a share the same 4.5-liter front differential capacity despite the Turbo designation indicating a turbocharged engine variant. The front differential fluid capacity is determined by the axle and housing design rather than the engine configuration.

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