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Kohler 125REZGT Specs (Power | Consumption)

The Kohler 125REZGT generator is listed with standby output of 105 kW, Propane fuel, 60 Hz operation, 6 available voltage configurations, Single phase, rated current of 150 A, and sound level of 69 dBA @ 75 ft (23 m).

Kohler Generator Specifications

Generator • Propane • 60 Hz • Single phase

Standby power: 105 kWVoltage options: 6 configurationsRated current: 150 ADry weight: 8,001 lb (3,629 kg)

Key specifications

105 kW Standby power
Propane Fuel
6 configurations Voltage options
Single phase Phase
150 A Rated current
8,001 lb (3,629 kg) Dry weight
69 dBA @ 75 ft (23 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.
50% load

4.9 gal/hr

75% load

6.2 gal/hr

Estimated runtime by load
Calculated from the listed 258.1 gal fuel capacity and fuel-consumption data.
50% load

52.7 hr

75% load

41.6 hr

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

13.1 kW

Peer average

29.1 kW

9th percentile
Power output
Low 100 kW High 105 kW
Standby

105 kW

Prime

100 kW

How the Kohler 125REZGT compares

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

Standby power
105 kW
17% above avg
77th percentile
Rated current
150 A
44% below avg
17th percentile
Dry weight
8,001 lb
113% above avg
95th percentile
Sound level
69 dBA
In line with avg
35th percentile
Standby power105 kW
Low 60 kWAverage 90 kWHigh 127 kW

About 17% above the similar-output Kohler average. Around the 77th percentile for this field.

Rated current150 A
Low 106 AAverage 269 AHigh 454 A

About 44% below the similar-output Kohler average. Around the 17th percentile for this field.

Dry weight8,001 lb
Low 1,883 lbAverage 3,755 lbHigh 8,555 lb

About 113% above the similar-output Kohler average. Around the 95th percentile for this field.

Sound level69 dBA
Low 61 dBAAverage 69.1 dBAHigh 75 dBA

Very close to the similar-output Kohler average. Around the 35th percentile for this field.

Oil capacity2.25 gal
Low 1.24 galAverage 3.45 galHigh 7.29 gal

About 35% below the similar-output Kohler average. Around the 33rd percentile for this field.

This model Peer average

Generator information

Manufacturer Kohler
Model 125REZGT
Generator type Generator
Fuel Propane
Frequency 60 Hz

Electrical output

Standby power 105 kW
Prime power 100 kW
Standby kVA 131.0
Voltage options 110/127 V, 139/240 V, 254/277 V, 208/220 V, 240/415 V, 440/480 V
Phase Single phase
Rated current 150 A
Circuit breaker 400 A

Engine, cooling and controls

Engine model Psi 8.8 L
Engine displacement 537 cu in (8.8 L)
Aspiration / cooling Turbocharged and Charge Cooled
Rated engine speed 1800 rpm
Engine oil capacity 2.25 gal (8.5 L)
Engine coolant capacity 6.74 gal (25.5 L)
Oil capacity 2.25 gal (8.5 L)
Controller Decision-Maker 3500
Emissions EPA Certified Prime

Physical specifications

Dry weight 8, 001 lb (3, 629 kg)
Dimensions (L × W × H) 157.2 × 73.5 × 86.9 in (3993 × 1867 × 2206 mm)
Sound level 69 dBA @ 75 ft (23 m)

Fuel system and runtime

Fuel tank 258.1 gal (977 L)

Fuel consumption

Prime 4.9 gal/h (18.5 L/h) @ 50%; 6.2 gal/h (23.5 L/h) @ 75%

Maintenance and service parts

Engine oil Capacity: 8.5 L

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

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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