Cummins Onan C40 D6 Specs (Power | Fuel Consumption)

The Cummins Onan C40 D6 generator is listed with standby output of 40 kW, Diesel fuel, 60 Hz operation, 14 available voltage configurations, and Three phase.

Cummins Onan Generator Specifications

Generator • Diesel • 60 Hz • Three phase

Standby power: 40 kWVoltage options: 14 configurationsDry weight: 2,083 lb (945 kg)

Key specifications

40 kW Standby power

Diesel Fuel

14 configurations Voltage options

Three phase Phase

2,083 lb (945 kg) Dry weight

60 Hz Frequency

Useful generator charts

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

Power-to-weight

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

This model

19.2 kW

Peer average

20.4 kW

42nd percentile

Power output

Low 36 kW High 40 kW

Standby

40 kW

Prime

36 kW

Model spec snapshot

Representative numeric specifications from this generator.

40 kWStandby

2,083.37 lbWeight

How the Cummins Onan C40 D6 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

40 kW

In line with avg

47th percentile

Dry weight

2,083 lb

5% below avg

37th percentile

Oil capacity

2.88 gal

13% above avg

50th percentile

Standby power40 kW

Low 30 kWAverage 41.2 kWHigh 55 kW

Very close to the similar-output Cummins Onan average. Around the 47th percentile for this field.

Dry weight2,083 lb

Low 1,120 lbAverage 2,187 lbHigh 3,476 lb

About 5% below the similar-output Cummins Onan average. Around the 37th percentile for this field.

Oil capacity2.88 gal

Low 1.14 galAverage 2.54 galHigh 4.06 gal

About 13% above the similar-output Cummins Onan average. Around the 50th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	C40 D6
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	40 kW
Prime power	36 kW
Standby kVA	50.0
Voltage options	380/220 V, 400/230 V, 416/240 V, 440/255 V, 480/277 V, 200/115 V, 208/120 V, 220/127 V, 230/132 V, 240/138 V, 190/110 V, 220 V, 230 V, 240 V
Phase	Three phase
Power factor	0.8

Engine, cooling and controls

Engine model	Cummins/Onan S3.8 series
Engine displacement	232 cu in (3.8 L)
Aspiration / cooling	turbo charged
Oil capacity	2.88 gal (10.9 L)
Coolant capacity	13.2 gal (50 L)
Maximum ambient	122 °F (50 °C)
Controller	PowerCommand, PowerCommand 1.1, PowerStart 500
Alternator	Cummins/Onan Brushless, 4 pole, drip proof, revolving field
Emissions	TIER 1

Physical specifications

Dry weight	2, 083 lb (945 kg)
Dimensions (L × W × H)	83.3 × 41.1 × 59.7 in (2115 × 1044 × 1516 mm)

Battery

Battery group	76
Battery voltage	12-volt V
Battery quantity	1

Fuel system and runtime

Fuel tank	52.8 gal (200 L)

Fuel consumption

Standby	13 L/h
Prime	11 L/h

Maintenance and service parts

Engine oil	Capacity: 10.9 liters
Coolant	Capacity: 17.3 liters

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