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Caterpillar CAT C18 ATAAC Engine Engine

The Caterpillar CAT C18 ATAAC is a 18.13 L 6-cylinder air-to-air aftercooled engine rated at 1500 rpm. It powers generator sets from Caterpillar, including the DM9819 and DM9828. It holds 38 L (10.0 gal) of oil and 61 L (16.1 gal) of coolant.

Part of the Caterpillar CAT engine family — 3 variants share parts & fitment.

18.13 L
Displacement
6
Cylinders
1500 rpm
Rated speed
38.0 L
Oil capacity

Engine specifications

Oil capacity38.0 L
Coolant capacity61.0 L
Displacement18.13 L
Cylinders6
Aspirationair-to-air aftercooled
Rated speed1500 rpm

Generator sets powered by this engine

2
Caterpillar DM9819Caterpillar DM9828

Common questions

What is the oil capacity of the Caterpillar CAT C18 ATAAC?

The Caterpillar CAT C18 ATAAC engine has an oil capacity of 38.0 liters.

What is the displacement of the Caterpillar CAT C18 ATAAC?

The Caterpillar CAT C18 ATAAC has a displacement of 18.13 liters with 6 cylinders.

Which generators use the Caterpillar CAT C18 ATAAC engine?

The Caterpillar CAT C18 ATAAC powers 2 generator set(s), including Caterpillar DM9819, Caterpillar DM9828.