Wacker Neuson Wheeled excavators

Transfer case fluid capacity & service interval

Wacker Neuson wheeled excavators require transfer case fluid with a capacity of 2,5 liters. Service intervals include changes at 500 hours and 2000 hours. The data covers 4 configurations.

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

TypeSpecifications
6503, Yanmar 4TNV98 (-> AH02844) (2008-2010)
  • Use: Normal
  • Capacity 2,5 liter
  • Change 2000 hours
6503, Yanmar 4TNV98 (-> AH02844) (2008-2010)
  • Use: Initial service
  • Capacity 2,5 liter
  • Change 500 hours
3802WD, Yanmar 4TNE88-NSW
  • Use: Normal
  • Capacity 2,5 liter
6502WD, Yanmar 4TNE98-NSR
  • Use: Normal
  • Capacity 2,5 liter

Additional Notes

  • The Wacker Neuson 3802WD with Yanmar 4TNE88-NSW engine carries a transfer case (transferbox) fluid capacity of 2.5 liters under normal use conditions.
  • The 6502WD with Yanmar 4TNE98-NSR engine shares the same 2.5-liter transferbox capacity as the 3802WD, also specified under normal use conditions.
  • The 6503 with Yanmar 4TNV98 engine (up to serial number AH02844) from 2008-2010 also holds 2.5 liters in the transferbox, consistent with the other configurations in the lineup.
  • For the 6503 (up to AH02844), the normal-use transfer case fluid change interval is set at 2,000 hours, which is a relatively extended service cycle typical of heavy equipment operating under standard working conditions.
  • An initial service interval of 500 hours is specified for the 6503 (up to AH02844) transferbox, meaning the first fluid change occurs well before the standard 2,000-hour cycle. A shorter break-in interval like 500 hours is common practice to flush out metal particles and contaminants generated during initial component wear-in.

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