HomeEnginesCummins/Onan C100 D2R

Cummins/Onan C100 D2R Engine Engine

The Cummins/Onan C100 D2R is a 4.5 L 4-cylinder turbocharged, charge air-cooled engine. It powers generator sets from Cummins/Onan, including the QSB5 series.

Also known as: Cummins C100 D2R

4.5 L
Displacement
4
Cylinders

Engine specifications

Displacement4.5 L
Cylinders4
Aspirationturbocharged, charge air-cooled

Generator sets powered by this engine

1

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterDry replaceable element find
Fuel filterSpin on fuel filters with water separator 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 C100 D2R?

The Cummins/Onan C100 D2R has a displacement of 4.5 liters with 4 cylinders.

Which generators use the Cummins/Onan C100 D2R engine?

The Cummins/Onan C100 D2R powers 1 generator set(s), including Cummins/Onan QSB5 series.