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Generac Generac In-line Engine

The Generac Generac In-line is a 2.4 L naturally aspirated engine rated at 1800 rpm. It powers generator sets from Generac, including the RG022, RG027, RG032 and RG038. It holds 3.8 L (1.0 gal) of oil and 9.5 L (2.5 gal) of coolant.

Also known as: Generac Generac In-line

2.4 L
Displacement
1800 rpm
Rated speed
3.8 L
Oil capacity

Engine specifications

Oil capacity3.8 L
Coolant capacity9.5 L
Displacement2.4 L
AspirationNaturally Aspirated
Rated speed1800 rpm

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filter
Oil filterFull flow spin-on cartridge
Belt
Coolant9.5 l
Oil3.8 l
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 Generac In-line?

The Generac Generac In-line engine has an oil capacity of 3.8 liters.

What is the displacement of the Generac Generac In-line?

The Generac Generac In-line has a displacement of 2.4 liters.

Which generators use the Generac Generac In-line engine?

The Generac Generac In-line powers 4 generator set(s), including Generac RG022, Generac RG027, Generac RG032, Generac RG038.