HomeEnginesCummins/Onan QSF2.8*

Cummins/Onan QSF2.8* Engine

The Cummins/Onan QSF2.8* is a 2.8 L 4-cylinder naturally aspirated, turbocharged engine rated at 2500 rpm, producing up to 55 kW. It powers generator sets from Cummins/Onan, including the CP1350D4, CP2600D4 and qsF2.8.

Also known as: Cummins QSF2.8*

2.8 L
Displacement
4
Cylinders
2500 rpm
Rated speed
55 kW
Gross power

Engine specifications

Displacement2.8 L
Cylinders4
AspirationNaturally Aspirated, Turbocharged
Rated speed2500 rpm
Gross power55 kW

Generator sets powered by this engine

3
Cummins/Onan CP1350D4Cummins/Onan CP2600D4Cummins/Onan qsF2.8

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

Service intervals

4
ItemActionHoursMonthsNotes
filtersChange1000 hrwith CENTINEL, depending on load factors
ELIMINATOR self cleaning filter coreOther1500 hrRequires servicing only every 1,500 hours. Saves up to 90% of lube system maintenance costs and increases productivity.
fuel filterChange1500 hrFleetguard NanoNet media
engine oilChange4500 hrwith CENTINEL, railway applications

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the displacement of the Cummins/Onan QSF2.8*?

The Cummins/Onan QSF2.8* has a displacement of 2.8 liters with 4 cylinders.

Which generators use the Cummins/Onan QSF2.8* engine?

The Cummins/Onan QSF2.8* powers 3 generator set(s), including Cummins/Onan CP1350D4, Cummins/Onan CP2600D4, Cummins/Onan qsF2.8.