Bobcat Wheeled loaders

Differential fluid capacity & service interval

Bobcat wheeled loaders require differential fluid with a capacity range of 3,5 to 4,5 liters. Service intervals include checks or changes at 6 months, 400 hours, or 100 hours. The data covers 8 configurations.

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

TypeSpecifications
  • AL275 (2005-2010)
  • Front
  • Use: Normal
  • Capacity 3,5 liter
  • Check 6 months
  • Change 6 months
  • AL275 (2005-2010)
  • Rear
  • Use: Normal
  • Capacity 4 liter
  • Check 400 hours
  • Change 400 hours
  • AL350 (2005-2010)
  • Front
  • Use: Normal
  • Capacity 4 liter
  • Check 6 months
  • Change 6 months
  • AL350 (2005-2010)
  • Rear
  • Use: Normal
  • Capacity 4,5 liter
  • Check 400 hours
  • Change 400 hours
  • AL350 (2005-2010)
  • Rear
  • Use: Initial service
  • Capacity 4,5 liter
  • Change 100 hours
  • AL440 (2005-2010)
  • Front
  • Use: Normal
  • Capacity 3,8 liter
  • Check 6 months
  • Change 6 months
  • AL440 (2005-2010)
  • Rear
  • Use: Normal
  • Capacity 4,5 liter
  • Check 400 hours
  • Change 400 hours
  • AL440 (2005-2010)
  • Rear
  • Use: Initial service
  • Capacity 4,5 liter
  • Change 100 hours

Additional Notes

  • The Bobcat Wheeled Loaders AL275, AL350, and AL440 all carry separate front and rear differential fluid capacities, meaning each axle is serviced as an independent reservoir rather than a shared system.
  • Front differential capacities differ across models: the AL275 holds 3.5 liters, the AL350 holds 4 liters, and the AL440 holds 3.8 liters, reflecting distinct axle designs across the three variants.
  • Rear differential capacities on the AL350 and AL440 are both rated at 4.5 liters, while the AL275 rear differential holds a slightly lower 4 liters.
  • Front differential service on all three models is tied to a 6-month interval for both checking and changing fluid, a time-based schedule rather than an hours-based one.
  • Rear differential service on all three models follows a 400-hour interval for both checking and changing, which is an operating-hours-based schedule independent of calendar time.
  • The AL350 rear differential carries an initial service change interval of 100 hours, meaning the first fluid change occurs well before the standard 400-hour ongoing interval takes effect.
  • The AL440 rear differential shares the same initial service change interval of 100 hours at a capacity of 4.5 liters, consistent with the AL350 rear differential initial service specification.
  • The AL275 rear differential has no initial service entry in the specifications, so only the standard 400-hour check and change interval applies to that model's rear axle.

Other Systems