Caterpillar Wheeled dozers

AdBlue (DEF) capacity & service interval

The Caterpillar Wheeled dozers use AdBlue (DEF) fluid with a capacity of 32 liters. The data covers 2 configurations.

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

TypeSpecifications
824K
  • Use: Normal
  • Capacity 32 liter
834K
  • Use: Normal
  • Capacity 32 liter

Additional Notes

  • The Caterpillar Wheeled Dozers 824K and 834K share an identical AdBlue (DEF) tank capacity of 32 liters, each equipped with a selective catalytic reduction (SCR) system.
  • A 32-liter DEF tank is a moderately sized reservoir for heavy construction equipment, reflecting the sustained operational demands typical of wheeled dozer applications.
  • Both the 824K and 834K carry normal use condition designations for their DEF capacity specifications, meaning the 32-liter figure applies to standard operating conditions rather than severe-duty cycles.
  • Selective catalytic reduction systems rely on DEF to convert nitrogen oxides (NOx) into nitrogen and water vapor, and the 32-liter capacity on both models determines how frequently DEF replenishment is required during normal operation.

Other Systems