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Cummins/Onan X3.3-G3 Engine

The Cummins/Onan X3.3-G3 is a 3.3 L engine rated at 1500 rpm. It powers generator sets from Cummins/Onan.

Also known as: Cummins X3.3-G3

Part of the Cummins/Onan X3.3 engine family — 3 variants share parts & fitment.

3.3 L
Displacement
1500 rpm
Rated speed

Engine specifications

Displacement3.3 L
Rated speed1500 rpm

Service intervals

2
ItemActionHoursMonthsNotes
valve clearanceCheck2000 hrB-Series (4BT3.3): valve clearance checks not required for 2000 hours, twice the industry standard
engine overhaulOther20000 hrQSK23-Series: expected life cycle to 20,000 hours before first overhaul

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 X3.3-G3?

The Cummins/Onan X3.3-G3 has a displacement of 3.3 liters.

Which generators use the Cummins/Onan X3.3-G3 engine?

The Cummins/Onan X3.3-G3 powers 1 generator set(s), including Cummins/Onan X3.3-G3.