125 kW Generator

Model KG125R | Fuel Type Natural Gas & LPG

Built to weather the storm, our KG125R KOHLER® natural gas and liquid propane generators deliver industrial-grade performance right to your home or business. When a utility failure hits, they keep your home comfortable and your business powered.

  • Our generators feature commercial-grade engines tested for 2,000 hours of continuous operation and extreme conditions. Their enclosures are designed to endure winds up to 181 MPH, ensuring resilience and durability.

  • Rated kW LP: 105 kW

    Rated kW NG: 125 kW

    Amps LP: 438 amps

    Amps NG: 521 amps

    Peak Motor Starting kVA @240 V: 440 kVa

    Alternator Note: All information shown is for 1 Phase 60 Hz generator with the largest alternator option available.

    Displacement: 6.2 L (378 cu. In.)

    Horsepower: NG 202 HP, LP 175 HP

    Enclosure Material: Aluminum Steel

    Sound Output During Weekly Exercise: 71 dB(A)

    Sound output During Full-speed Operation: 71 dB(A)

    Response Time: 10 seconds

    Country of Origin: US

    Automatic Transfer Switch Included: Sold Separately

    Remote Monitor Available: Sold Separately

    Off Grid / Utility backup: Utility Backup

    Weight: 3340 lbs. (3562 kg)

    Alternator Type: 4-Pole, Rotating Field

    Fuel Consumption on NG at 50% Load? 1084 cfh

    Fuel Consumption on LP at 50% Load?388 cfh

    Controller: APM402

    Cylinder Arrangement: V-8

    Dimensions: 138.8 in. x 45.4 in. x 65.5 in. (3525 mm x 1154 mm x 1665 mm)

    Engine Manufacturer/Description: KOHLER

    Engine Model: KG6208TAHD, 6.2L, Turbocharged

    Engin/Alternator RPM: 1800

    Fuel Type: Natural Gas | LPG

    Frequency: 60 Hz

    Phase: Single PhaseThree Phase

    Voltage @60 Hzs: 120/240

    Digital Voltage Regulation: ±0.5%

  • Dimensional Drawing

    Enclosure Diagram

    Engine Operation Manual

    Generator Operation Manual

    Specs

Crafted for Excellence

Our generators offer a superior experience from day one and for years to come. Our durable design ensures your generator lasts longer, operates more quietly, and starts more efficiently under higher loads than competing models.

FAQ

    • We offer a 6kW-150kW range of power.

    • Ideal for backing up your home if there is a black or brown out.

    • Your generator will automatically start and restore power in seconds.

    • Receive power to critical hard-wired systems.

    • No need to worry about refueling. You’ll pick either a natural gas generator (NG) or a liquid propane gas generator (LPG) based on your home.

    • Have high-quality power delivered simultaneously. Our generators won’t harm your electronics.

    • Our generators come in over 10 colors, match your generator to fit your style.

  • Meet the brains behind your home generator. The ATS is always monitoring your home’s power.

    During an outage, it automatically transfers power from the utility to your generator. The ATS restores your home power to the utility grid and turns off your backup power when the main power comes back on.

  • A home generator plus installation can start at $6000. Your total cost will vary based on your installation and power needs. When shopping for standby generators, your checklist should include generator installation, costs, accessories and permits. No need to worry, your KOHLER dealer will handle all the details, so you don’t have to.

  • Power outages can be expensive. Extreme weather is the leading cause of power outages in the United States. Over the last ten years, power outages have become more severe. We’ve seen more frequent and longer-lasting blackouts, which can cause loss of time and money.

    These surges have caused damage to properties and homes. This has resulted in physical, emotional, and financial difficulties for many Americans.

    Home insurance rates may be lower. Insurance companies may offer lower rates for homes well-protected against theft, flooding, and severe weather. Your backup power keeps the lights on, the security system working, and the sump pump running smoothly. This provides peace of mind for both you and your insurer.

    • Registration is completed by Butler Mobility

    • Generator is eligible for extended warranty purchase

    • Warranty start date goes by the date registered/day of start up by Butler Mobility

    • As an authorized installer/dealer, we are trained and certified on proper installation requirements

    Watch this video to hear from Ed Del Grande, a home improvement expert who explains the installation process in more detail.

Real stories from real owners

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Butler Support: (717) 938-4253

Hours: Monday – Friday, 8:00am to 4:30pm