Kohler 45 REOZT4 Specs (Power | Consumption)

The Kohler 45 REOZT4 generator is listed with standby output of 40 kW, Diesel fuel, 60 Hz operation, 6 available voltage configurations, Three phase, rated current of 54 A, and sound level of 67 dBA @ 23 ft (7 m).

Kohler Generator Specifications

Generator • Diesel • 60 Hz • Three phase

Standby power: 40 kWVoltage options: 6 configurationsRated current: 54 ADry weight: 3,179 lb (1,442 kg)

Key specifications

40 kW Standby power

Diesel Fuel

6 configurations Voltage options

Three phase Phase

54 A Rated current

3,179 lb (1,442 kg) Dry weight

67 dBA @ 23 ft (7 m) Sound level

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

0.3 gal/hr

25% load

1 gal/hr

50% load

1.7 gal/hr

75% load

2.5 gal/hr

100% load

3.3 gal/hr

Estimated runtime by load

Calculated from the listed 77.4 gal fuel capacity and fuel-consumption data.

No load

258 hr

25% load

77.4 hr

50% load

45.5 hr

75% load

31 hr

100% load

23.5 hr

Power-to-weight

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

This model

12.6 kW

Peer average

24.9 kW

12th percentile

Power output

Low 36 kW High 40 kW

Standby

40 kW

Prime

36 kW

How the Kohler 45 REOZT4 compares

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

Standby power

40 kW

In line with avg

50th percentile

Rated current

54 A

64% below avg

8th percentile

Dry weight

3,179 lb

59% above avg

92nd percentile

Sound level

67 dBA

In line with avg

45th percentile

Standby power40 kW

Low 30 kWAverage 41.1 kWHigh 55 kW

Very close to the similar-output Kohler average. Around the 50th percentile for this field.

Rated current54 A

Low 43 AAverage 149 AHigh 221 A

About 64% below the similar-output Kohler average. Around the 8th percentile for this field.

Dry weight3,179 lb

Low 657 lbAverage 1,994 lbHigh 4,385 lb

About 59% above the similar-output Kohler average. Around the 92nd percentile for this field.

Sound level67 dBA

Low 57 dBAAverage 66.3 dBAHigh 76.6 dBA

Very close to the similar-output Kohler average. Around the 45th percentile for this field.

Oil capacity2.96 gal

Low 1.09 galAverage 2.52 galHigh 4.12 gal

About 17% above the similar-output Kohler average. Around the 66th percentile for this field.

This model Peer average

Generator information

Manufacturer	Kohler
Model	45 REOZT4
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	40 kW
Prime power	36 kW
Standby kVA	50.0
Voltage options	110/127 V, 139/240 V, 254/277 V, 208/220 V, 240/415 V, 440/480 V
Phase	Three phase
Rated current	54 A
Power factor	0.8
Circuit breaker	150 A

Engine, cooling and controls

Engine model	Kohler 2.5 L
Engine displacement	153 cu in (2.5 L)
Oil capacity	2.96 gal (11.2 L)
Coolant capacity	4.54 gal (17.2 L)
Maximum ambient	122 °F (50 °C)
Controller	Decision-Maker 1000, Decision-Maker 3500
Alternator	Kohler 4D8.3
Emissions	Tier 4 Final

Physical specifications

Dry weight	3, 179 lb (1, 442 kg)
Dimensions (L × W × H)	86 × 40 × 63.9 in (2184 × 1016 × 1622 mm)
Sound level	67 dBA @ 23 ft (7 m)

Battery

Battery cranking	925 CCA
Battery voltage	12 V
Battery quantity	1

Fuel system and runtime

Fuel tank	77.4 gal (293 L)
Tank runtime	24 hr

Fuel consumption

Standby	0.3 gal/h (1.0 L/h) @ 25%; 1.0 gal/h (3.8 L/h) @ 50%; 1.7 gal/h (6.6 L/h) @ 75%; 2.5 gal/h (9.5 L/h) @ 100%; 3.3 gal/h (12.6 L/h)
Prime	0.3 gal/h (1.0 L/h) @ 25%; 0.9 gal/h (3.5 L/h) @ 50%; 4.9 gal/h (18.5 L/h) @ 75%; 6.2 gal/h (23.5 L/h) @ 100%; 3.1 gal/h (11.7 L/h)

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