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Caterpillar CAT C9 ATAAC Engine Engine

The Caterpillar CAT C9 ATAAC is a 8.8 L 6-cylinder turbocharged air-to-air aftercooled engine rated at 1800 rpm. It powers generator sets from Caterpillar, including the DM8505. It holds 39 L (10.3 gal) of oil and 22 L (5.8 gal) of coolant.

Also known as: Caterpillar CAT C9 ATAAC

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

8.8 L
Displacement
6
Cylinders
1800 rpm
Rated speed
39.0 L
Oil capacity

Engine specifications

Oil capacity39.0 L
Coolant capacity22.0 L
Displacement8.8 L
Cylinders6
AspirationTurbocharged Air-to-Air Aftercooled
Rated speed1800 rpm

Generator sets powered by this engine

2
Caterpillar CAT C9 ATAACCaterpillar DM8505

Common questions

What is the oil capacity of the Caterpillar CAT C9 ATAAC?

The Caterpillar CAT C9 ATAAC engine has an oil capacity of 39.0 liters.

What is the displacement of the Caterpillar CAT C9 ATAAC?

The Caterpillar CAT C9 ATAAC has a displacement of 8.8 liters with 6 cylinders.

Which generators use the Caterpillar CAT C9 ATAAC engine?

The Caterpillar CAT C9 ATAAC powers 2 generator set(s), including Caterpillar CAT C9 ATAAC, Caterpillar DM8505.