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Cummins/Onan X3.3-G3 Generator Set

The Cummins/Onan X3.3-G3 is a 29 kW (36 kVA) diesel standby generator set powered by a Cummins/Onan X3.3-G3 engine. It operates at 50 Hz.

29 kW
Standby
3.3 L
Displacement
1
Document types

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

Typical fuel consumption for 25–30 kW Diesel generators →

Compare with other 25–30 kW Diesel generators →

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power29 kW
Standby kVA36
Prime power26 kW

Engine

Cummins/Onan X3.3-G3
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 size generator is the Cummins/Onan X3.3-G3?

The Cummins/Onan X3.3-G3 is rated 29 kW standby (36.0 kVA).

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

The Cummins/Onan X3.3-G3 is powered by the Cummins/Onan X3.3-G3 engine.

Is the Cummins/Onan X3.3-G3 diesel or gas?

The Cummins/Onan X3.3-G3 runs on diesel.

What is the continuous rating of the Cummins/Onan X3.3-G3?

The Cummins/Onan X3.3-G3 is rated 26 kW prime (33 kVA), against 29 kW standby.

Available documents

Reference — CUMMINS-GENERATOR-ENGINES-CATALOG (Cummins/Onan)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.