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Generac 6.8GN Engine

The Generac 6.8GN is a 6.8 L 10-cylinder naturally aspirated engine rated at 3000 rpm. It powers generator sets from Generac, including the SG070. It holds 6 L (1.6 gal) of oil and 6 L (1.6 gal) of coolant.

Also known as: GENERAC 6.8GN

6.8 L
Displacement
10
Cylinders
3000 rpm
Rated speed
6.0 L
Oil capacity

Engine specifications

Oil capacity6.0 L
Coolant capacity6.0 L
Displacement6.8 L
Cylinders10
AspirationNaturally Aspirated
Rated speed3000 rpm

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filter—
Fuel filter—
Oil filter—
Battery(1) - 12 V, 90 A.H., 27F—
Belt—
Coolant6.3 gal.—
Coolant filter—
Oil6.0 qts.—
Spark plug—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the oil capacity of the Generac 6.8GN?

The Generac 6.8GN engine has an oil capacity of 6.0 liters.

What is the displacement of the Generac 6.8GN?

The Generac 6.8GN has a displacement of 6.8 liters with 10 cylinders.

Which generators use the Generac 6.8GN engine?

The Generac 6.8GN powers 1 generator set(s), including Generac SG070.