Cummins Onan C40D6R Specs (Power | Fuel Consumption)

The Cummins Onan C40D6R generator is listed with standby output of 40 kW, Diesel fuel, 60 Hz operation, 163/125 V, 150/105 V output, and Wye / Three phase.

Cummins Onan Generator Specifications

Generator • Diesel • 60 Hz • Wye / Three phase

Standby power: 40 kWVoltage options: 163/125 V, 150/105 VDry weight: 3,285 lb (1,490 kg)

Key specifications

40 kW Standby power

Diesel Fuel

163/125 V, 150/105 V Voltage options

Wye / Three phase Phase

3,285 lb (1,490 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

12.2 kW

Peer average

20.4 kW

12th 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

3,284.89 lbWeight

How the Cummins Onan C40D6R 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

3,285 lb

50% above avg

90th percentile

Oil capacity

2.09 gal

18% below avg

31st 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 weight3,285 lb

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

About 50% above the similar-output Cummins Onan average. Around the 90th percentile for this field.

Oil capacity2.09 gal

Low 1.14 galAverage 2.54 galHigh 4.06 gal

About 18% below the similar-output Cummins Onan average. Around the 31st percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	C40D6R
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	40 kW
Prime power	36 kW
Standby kVA	50.0
Voltage options	163/125 V, 150/105 V
Phase	Wye / Three phase
Power factor	0.8

Engine, cooling and controls

Engine model	Cummins/Onan 4BTAA3.3-G12
Aspiration / cooling	Turbocharged and charge after-cooled
Rated engine speed	1800 rpm
Oil capacity	2.09 gal (7.9 L)
Coolant capacity	2.72 gal (10.3 L)
Maximum ambient	131 °F (55 °C)
Controller	PowerStart 600
Emissions	EPA Tier 3

Physical specifications

Dry weight	3, 285 lb (1, 490 kg)
Dimensions (L × W × H)	89.6 × 40.9 × 76.3 in (2277 × 1038 × 1937 mm)

Fuel system and runtime

Tank runtime	12 hr

Fuel consumption

Standby	1.1 gal/h (4.2 L/h) @ 0%
Prime	1 gal/h (3.9 L/h) @ 0%

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