Wacker Neuson Wheeled loaders, WL

Transfer case fluid capacity & service interval

Wacker Neuson WL wheeled loaders require transfer case fluid with a capacity of 0,8 liter. Service intervals include checking every 250 hours and changing every 500 hours or 1000 hours/12 months. The data covers 4 configurations.

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

TypeSpecifications
WL18, Perkins 403C-11 (2007-2014)
  • Use: Normal
  • Capacity 0,8 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months
WL18, Perkins 403C-11 (2007-2014)
  • Use: Initial service
  • Capacity 0,8 liter
  • Change 500 hours
WL18, Perkins 403D-11 (2007-2014)
  • Use: Normal
  • Capacity 0,8 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months
WL18, Perkins 403D-11 (2007-2014)
  • Use: Initial service
  • Capacity 0,8 liter
  • Change 500 hours

Additional Notes

  • The Wacker Neuson WL18 transfer case holds 0.8 liter of fluid, a relatively small capacity consistent with a compact wheeled loader powertrain component rather than a large axle or transmission assembly.
  • Both the Perkins 403C-11 and Perkins 403D-11 engine variants in the WL18 share an identical transfer case capacity of 0.8 liter, meaning no difference in fill volume exists between the two engine configurations for this system.
  • Under normal use conditions, the transfer case fluid change interval is set at 1000 hours or 12 months, whichever comes first, combining an hour-based and a calendar-based threshold within a single service requirement.
  • A fluid level check at 250 hours is specified under normal use conditions, occurring well before the full change interval and serving as an intermediate inspection point within the 1000-hour cycle.
  • Under initial service conditions, the transfer case fluid change is required at 500 hours, which is half the normal-use change interval of 1000 hours, reflecting the break-in period practice of removing fluid that may carry early wear particles from new components.
  • The initial service change interval of 500 hours carries no accompanying calendar-based limit, unlike the normal use interval, which pairs 1000 hours with a 12-month maximum.

Other Systems