HomeKohlerKohler 125REZG

Kohler 125REZG Generator Set

The Kohler 125REZG is a 105 kW (131 kVA) LP Gas standby generator set. It is available at 208 V, 127/220 V, 120/240 V and 347/600 V, 3-phase and 60 Hz. It holds about 8 L (2.1 gal) of oil and 10 L (2.6 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 battery rated 630 CCA at 12 V. The set measures 2400×1040×1484 mm (94.5×40.9×58.4 in) and weighs about 1134 kg (2500 lb).

105 kW
Standby
8.0 L
Oil capacity
4
Document types

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Specifications

FuelLP Gas
Frequency60.0 Hz
Standby power105 kW
Standby kVA131
EmissionsEPA-Certified for Stationary Emergency Applications
ControllerDecision-Maker 3+, Decision-Maker 550
Oil capacity8.0 L
AlternatorKohler 4R12X
Voltage options208 V, 600 V, 127/220 V, 120/240 V, 347/600 V
Phase3
Power factor[0.8, 1.0]
Battery cranking630 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity[10.0, 24.2] L
Max ambient50 °C
Dimensions (L×W×H)2400×1040×1484 mm
Dry weight1134 kg

Maintenance & consumables

ItemSpecCapacityPart #Interval
Air filterDry find
Fuel filter find
Oil filterCartridge find
Belt find
Coolant
OilFull Pressure

Common questions

What is the power rating of the Kohler 125REZG?

The Kohler 125REZG is rated 105 kW standby (131.0 kVA).

What fuel does the Kohler 125REZG use?

The Kohler 125REZG runs on LP Gas.

What alternator does the Kohler 125REZG use?

The Kohler 125REZG uses a Kohler 4R12X alternator.

Fuel consumption

RatingLoadL/hgal/h
Standby
Standby25%
Standby50%
Standby75%
Standby100%

Available documents

Brochure (Kohler)Brochure — G6-39 0918AZ (Kohler)Spec sheet (Kohler)Spec sheet — G4129 125REZG (Kohler)Reference — Reinstated Enclosures (Kohler)Wiring diagram — tp6712 (Kohler)Wiring diagram — tp6799 (Kohler)