Ursus 12/14 series

Differential fluid capacity & service interval

Ursus 12/14 series uses differential fluid with a capacity range of 3,5 to 5,5 liters. Service intervals consist of checking every 100 hours and changing every 800 hours. The data covers 9 configurations.

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

TypeSpecifications
  • 1614 4WD (1990- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 5312 2WD / 5314 4WD (1990- )
  • Front
  • Use: Normal
  • Capacity 5,5 liter
  • Check 100 hours
  • Change 800 hours
  • 1012 2WD / 1014 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 1112 2WD / 1114 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 1214 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 1414 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 812 2WD / 814 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 912 2WD / 914 4WD (1987- )
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • 1212, 1214 (1983-1985)
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 100 hours
  • Change 800 hours
  • Code: (4x4)

Additional Notes

  • Front differential fluid capacity across the Ursus 12/14 series is 3.5 liters for the majority of configurations, including the 812/814, 912/914, 1012/1014, 1112/1114, 1212/1214, 1214 4WD, and 1414 4WD models. In agricultural equipment, a capacity in this range is typical for a front axle differential housing rather than a combined transmission-differential unit.
  • The Ursus 5312 2WD / 5314 4WD stands apart from all other listed configurations with a front differential fluid capacity of 5.5 liters, which is 2 liters greater than the 3.5-liter figure shared by the rest of the series. A larger housing volume of this kind generally corresponds to a heavier-duty or physically larger front axle assembly.
  • All front differential fluid intervals across the series follow the same structure under normal use conditions: a fluid level check at every 100 hours of operation and a full fluid change at every 800 hours. In tractor service, hour-based intervals are standard because engine hours are a more consistent measure of mechanical wear than calendar time.
  • The 100-hour check interval represents a relatively frequent inspection cycle, occurring eight times before a single 800-hour change interval is reached. This ratio is common in working machinery where contamination or seal wear can introduce fluid loss between scheduled changes.
  • The 1212 and 1214 models with a 1983-1985 production range are the earliest configurations listed, and both share the 3.5-liter front differential capacity and the 100/800-hour service schedule found in the later 4WD variants.
  • Several configurations, including the 1014, 1114, 1214 4WD, 1414 4WD, and 1614 4WD, are designated as 4WD models and all carry front differential specifications, which is consistent with 4WD drivetrains requiring a driven front axle with its own differential housing. The 2WD variants in paired listings such as the 1012/1014 and 912/914 also carry front differential entries, indicating a front axle differential is present regardless of whether front-wheel drive is engaged.
  • The 1614 4WD has a starting year of 1990, making it the latest introduction among the listed configurations, and shares the same 3.5-liter capacity and 100/800-hour service intervals as the other 4WD models introduced from 1987 onward.

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