The Caterpillar C6.6 ACERT is a 6.6 L 6-cylinder turbocharged air-to-air aftercooled engine rated at 2200 rpm, producing up to 134 kW. It powers generator sets from Caterpillar, including the D125, D150 and D175. It holds 4.4 L (1.2 gal) of oil and 13.7 L (3.6 gal) of coolant.
Also known as: Caterpillar C6.6 ACERT
| Oil capacity | 4.4 L |
|---|---|
| Coolant capacity | 13.7 L |
| Displacement | 6.6 L |
| Cylinders | 6 |
| Aspiration | Turbocharged Air-to-Air Aftercooled |
| Rated speed | 2200 rpm |
| Gross power | 134 kW |
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
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The Caterpillar C6.6 ACERT engine has an oil capacity of 4.4 liters.
The Caterpillar C6.6 ACERT has a displacement of 6.6 liters with 6 cylinders.
The Caterpillar C6.6 ACERT powers 3 generator set(s), including Caterpillar D125, Caterpillar D150, Caterpillar D175.
The Caterpillar C6.6 ACERT uses oil filter part numbers Caterpillar 4621171, Caterpillar IR1807, Caterpillar 3890434.
The Caterpillar C6.6 ACERT uses fuel filter part numbers Caterpillar 1165436, Caterpillar 1466695, Donaldson P550625.
The Caterpillar C6.6 ACERT uses air filter part numbers Caterpillar 2525001, Caterpillar 2525002, Caterpillar 1282686.