Caterpillar Bulldozers/tracked tractors

AdBlue (DEF) capacity & service interval

Caterpillar Bulldozers/tracked tractors require AdBlue (DEF) with a capacity of 19 liters. The data covers 3 configurations.

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

TypeSpecifications
D1, Caterpillar C3.6 (2020- )
  • Use: Normal
  • Capacity 19 liter
D2, Caterpillar C3.6 (2020- )
  • Use: Normal
  • Capacity 19 liter
D3, Caterpillar C3.6 (2020- )
  • Use: Normal
  • Capacity 19 liter

Additional Notes

  • The D1, D2, and D3 models equipped with the Caterpillar C3.6 engine share an identical AdBlue (DEF) tank capacity of 19 liters, indicating a common tank design across all three bulldozer grades in the 2020 starting configuration.
  • A 19-liter DEF tank is a moderately sized reservoir for tracked construction equipment, reflecting the operational demands of machines in the D1-through-D3 class where extended field intervals between refills are a practical consideration.
  • All three configurations reference a selective catalytic reduction (SCR) system, which is the emissions control technology that consumes the DEF fluid. The 19-liter capacity figure applies specifically to the SCR tank rather than any other fluid reservoir on the machine.
  • The capacity specifications for the Caterpillar D1, D2, and D3 are each listed under normal use conditions, meaning the 19-liter figure is associated with standard operating environments rather than severe-duty cycles.

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