Cummins/Onan X2.5-G4 — Specs, Engine, Parts & Maintenance

Name: Cummins/Onan X2.5-G4 Generator Set
Brand: Cummins/Onan

Cummins/Onan X2.5-G4 Generator Set

The Cummins/Onan X2.5-G4 is a 26 kW (34.7 kVA) standby generator set powered by a Cummins/Onan X2.5-G4 engine. It is available at 12 V. It holds about 8 L (2.1 gal) of oil and 11 L (2.9 gal) of coolant, with a maximum ambient rating of 50 °C. The set measures 1036.5×687.5×823.5 mm (40.8×27.1×32.4 in) and weighs about 258 kg (569 lb).

26 kW

Standby

2.5 L

Displacement

8.0 L

Oil capacity

Document types

Specifications

Standby power	26 kW
Prime power	25 kW
Oil capacity	8.0 L
Voltage options	12 V
Coolant capacity	11 L
Max ambient	50 °C
Dimensions (L×W×H)	1036×687×823 mm
Dry weight	258 kg

Engine

Cummins/Onan X2.5-G4

Oil capacity	8.0 L
Coolant capacity	11.0 L
Displacement	2.5 L
Aspiration	naturally aspirated

Common questions

What is the power rating of the Cummins/Onan X2.5-G4?

The Cummins/Onan X2.5-G4 is rated 26 kW standby.

What engine does the Cummins/Onan X2.5-G4 use?

The Cummins/Onan X2.5-G4 is powered by the Cummins/Onan X2.5-G4 engine.

What is the oil capacity of the Cummins/Onan X2.5-G4?

The Cummins/Onan X2.5-G4 engine in the Cummins/Onan X2.5-G4 has an oil capacity of 8.0 liters.

Fuel consumption

Rating	Load	L/h	gal/h
Continuous	100%	5.5	1.4
Prime	50%	3.7	0.7
Prime	100%	7.2	1.9
Standby	25%	2.5	0.5
Standby	75%	5.3	1.4
Standby	100%	8.0	2.1

Available documents

Spec sheet — 0064191 (Cummins/Onan)