Cummins Onan W3M-19 Specs (Power | Fuel Consumption)

The Cummins Onan W3M-19 generator is listed with standby output of 3 kW, Gasoline fuel, 60 Hz operation, 115 V output, Single phase, and rated current of 26 A.

Cummins Onan Generator Specifications

Generator • Gasoline • 60 Hz • Single phase

Standby power: 3 kWVoltage options: 115 VRated current: 26 ADry weight: 595 lb (270 kg)

Key specifications

3 kW Standby power

Gasoline Fuel

115 V Voltage options

Single phase Phase

26 A Rated current

595 lb (270 kg) Dry weight

60 Hz Frequency

Useful generator charts

Charts are shown only when this model has enough usable source data.

Fuel consumption by load

How fuel use changes as generator load increases.

No load

0.28 gal/hr

25% load

0.35 gal/hr

50% load

0.45 gal/hr

75% load

0.52 gal/hr

100% load

0.6 gal/hr

Estimated runtime by load

Calculated from the listed 3 gal fuel capacity and fuel-consumption data.

No load

10.7 hr

25% load

8.6 hr

50% load

6.7 hr

75% load

5.8 hr

100% load

5 hr

Power-to-weight

Standby output per 1,000 lb of dry weight versus similar-output Cummins Onan models.

This model

5 kW

Peer average

24.1 kW

8th percentile

Model spec snapshot

Representative numeric specifications from this generator.

3 kWStandby

26 ACurrent

595.25 lbWeight

How the Cummins Onan W3M-19 compares

This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.

Standby power

3 kW

52% below avg

23rd percentile

Rated current

26 A

15% below avg

48th percentile

Dry weight

595 lb

14% below avg

63rd percentile

Oil capacity

1.5 gal

91% above avg

89th percentile

Standby power3 kW

Low 1 kWAverage 6.2 kWHigh 14 kW

About 52% below the similar-output Cummins Onan average. Around the 23rd percentile for this field.

Rated current26 A

Low 5 AAverage 30 AHigh 80 A

About 15% below the similar-output Cummins Onan average. Around the 48th percentile for this field.

Dry weight595 lb

Low 37 lbAverage 690 lbHigh 3,525 lb

About 14% below the similar-output Cummins Onan average. Around the 63rd percentile for this field.

Oil capacity1.5 gal

Low 0.15 galAverage 0.78 galHigh 1.66 gal

About 91% above the similar-output Cummins Onan average. Around the 89th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	W3M-19
Generator type	Generator
Fuel	Gasoline
Frequency	60 Hz

Electrical output

Standby power	3 kW
Standby kVA	3.0
Voltage options	115 V
Phase	Single phase
Rated current	26 A
Power factor	1

Engine, cooling and controls

Engine model	Cummins/Onan W2C
Rated engine speed	1800 rpm
Engine oil capacity	1.5 gal (5.7 L)
Engine coolant capacity	2.25 gal (8.5 L)
Oil capacity	1.5 gal (5.7 L)
Coolant capacity	2.25 gal (8.5 L)

Physical specifications

Dry weight	595 lb (270 kg)
Dimensions (L × W × H)	44 × 22 × 33 in (1118 × 559 × 838 mm)

Fuel system and runtime

Fuel tank	3 gal (11.4 L)

Fuel consumption

Standby	0.28 gal/h (1.06 L/h) @ 25%; 0.35 gal/h (1.32 L/h) @ 50%; 0.45 gal/h (1.7 L/h) @ 75%; 0.52 gal/h (1.97 L/h) @ 100%; 0.6 gal/h (2.27 L/h)

Maintenance and service parts

Engine oil	Interval: 64 hr; Specification: Army No. 2104-A (OE) SAE 10 or 30; Capacity: 6.0 quarts

Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.