Deutz-Fahr Series 4 W

Differential fluid capacity & service interval

Deutz-Fahr Series 4 W differential fluid capacity ranges from 7 to 10 liters. Service intervals include checks at 300 hours and changes at 1200 hours or 12 months. The data covers 8 configurations.

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

TypeSpecifications
  • 4040 W (2019- )
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4045 W (2019- )
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4050 W (2019- )
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4055 W (2019- )
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4060 W (2019- )
  • Front
  • Use: Normal
  • Capacity 7 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4080 W (2019- )
  • Front
  • Use: Normal
  • Capacity 10 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4090 W (2019- )
  • Front
  • Use: Normal
  • Capacity 10 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • 4100 W (2019- )
  • Front
  • Use: Normal
  • Capacity 10 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months

Additional Notes

  • Across the Deutz-Fahr Series 4 W lineup, front differential fluid capacity falls into one of two values: 7 liters for the 4040 W, 4045 W, 4050 W, 4055 W, and 4060 W, and 10 liters for the 4080 W, 4090 W, and 4100 W.
  • The 7-liter figure applies to the five lower-output models in the range, reflecting the smaller front axle differential housings found on tractors in that power class.
  • The 10-liter capacity on the 4080 W, 4090 W, and 4100 W corresponds to a larger front differential assembly, consistent with the greater torque loads placed on front axle components in higher-output machines.
  • All eight models share an identical check interval of 300 hours under normal use conditions, meaning fluid level inspection is due well before any drain-and-fill service is required.
  • The change interval is specified as 1200 hours or 12 months, whichever comes first, under normal use conditions. The dual-trigger structure means calendar time can mandate a fluid change even when the hour threshold has not been reached.
  • The ratio between the check interval and the change interval is 1:4, so a fluid level check is performed approximately four times before a full fluid change becomes due on the hour-based schedule.
  • All specifications listed apply to the front differential only. The front differential on a wheeled tractor manages torque distribution to the front axle when four-wheel drive is engaged, making fluid condition relevant to both lubrication and axle longevity.
  • The normal use condition designation across all rows indicates these intervals are not adjusted for severe operating environments such as heavy continuous loading or extreme temperatures, which can accelerate fluid degradation.

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