HomeEnginesCummins/Onan C20D6T

Cummins/Onan C20D6T Engine

The Cummins/Onan C20D6T is a 2.5 L 3-cylinder naturally aspirated engine. It powers generator sets from Cummins/Onan.

Also known as: Cummins C20D6T

2.5 L
Displacement
3
Cylinders

Engine specifications

Displacement2.5 L
Cylinders3
AspirationNaturally aspirated

Generator sets powered by this engine

1
Cummins/Onan C20D6T

How to read your Cummins/Onan engine serial & model number →

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filter find
Fuel filter find
Oil filter find
Belt find
Coolant
Oil

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 displacement of the Cummins/Onan C20D6T?

The Cummins/Onan C20D6T has a displacement of 2.5 liters with 3 cylinders.

Which generators use the Cummins/Onan C20D6T engine?

The Cummins/Onan C20D6T powers 1 generator set(s), including Cummins/Onan C20D6T.