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Kohler KG125R 125kW 1-Phase 120/240V Standby Generator - KG125R-QS

Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator

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SKU PES-PS-GEN-0254

Kohler KG125R 125kW 1-Phase 120/240V Standby Generator - KG125R-QS

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

$42,137.25 USD

$ $42,137.25 USD

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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Specifications

Voltage 240V

Product Category Generator

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator

The Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator is a premium-grade power backup solution built for reliability, durability, and seamless performance in commercial and large residential environments. The Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator ensures uninterrupted operation, high efficiency, and quiet performance under variable load conditions.

Product Features

High-Efficiency Power Output

Delivering 125kW of continuous single-phase power at 120/240V, this model supports critical systems with exceptional reliability and efficiency.

Advanced Gaseous Engine

The Kohler-engineered gaseous engine offers reduced emissions, longer service life, and superior performance across diverse operating conditions.

Automatic Transfer Functionality

The generator detects power loss instantly and switches to standby mode automatically, ensuring uninterrupted energy delivery without manual intervention.

Rugged Weather-Resistant Enclosure

The Kohler KG125R-QS features a robust, corrosion-resistant steel enclosure that provides protection against harsh outdoor conditions while maintaining long-term durability.

Quiet and Cool Operation

Designed with a liquid cooling system and low-noise configuration, this model ensures efficient thermal management and quiet performance.

How the Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator Works

Seamless Automatic Power Transition

When utility power fails, the generator automatically starts and transfers the electrical load to restore essential systems within seconds.

Intelligent Control and Monitoring

Equipped with Kohler’s advanced digital controller, it continuously monitors performance parameters to ensure optimal efficiency and safety.

Specifications

Model Number	KG125R-QS
Manufacturer	Kohler
Rated Power Output	125 kW
Voltage	120/240V 1-Phase
Engine Type	Kohler Gaseous Engine
Fuel Type	Natural Gas / Propane
Cooling System	Liquid-Cooled
Enclosure Material	Steel, Weather-Resistant
Sound Level	65 dB @ 7m
Frequency	60 Hz
Dimensions (L × W × H)	120.0 × 45.9 × 60.5 in
Weight	5800 lb

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator

Product Features

High-Efficiency Power Output

Delivering 125kW of continuous single-phase power at 120/240V, this model supports critical systems with exceptional reliability and efficiency.

Advanced Gaseous Engine

The Kohler-engineered gaseous engine offers reduced emissions, longer service life, and superior performance across diverse operating conditions.

Automatic Transfer Functionality

The generator detects power loss instantly and switches to standby mode automatically, ensuring uninterrupted energy delivery without manual intervention.

Rugged Weather-Resistant Enclosure

The Kohler KG125R-QS features a robust, corrosion-resistant steel enclosure that provides protection against harsh outdoor conditions while maintaining long-term durability.

Quiet and Cool Operation

Designed with a liquid cooling system and low-noise configuration, this model ensures efficient thermal management and quiet performance.

How the Kohler KG125R-QS 125kW 120/240V 1-Phase Standby Generator Works

Seamless Automatic Power Transition

When utility power fails, the generator automatically starts and transfers the electrical load to restore essential systems within seconds.

Intelligent Control and Monitoring

Equipped with Kohler’s advanced digital controller, it continuously monitors performance parameters to ensure optimal efficiency and safety.

Specifications

Model Number	KG125R-QS
Manufacturer	Kohler
Rated Power Output	125 kW
Voltage	120/240V 1-Phase
Engine Type	Kohler Gaseous Engine
Fuel Type	Natural Gas / Propane
Cooling System	Liquid-Cooled
Enclosure Material	Steel, Weather-Resistant
Sound Level	65 dB @ 7m
Frequency	60 Hz
Dimensions (L × W × H)	120.0 × 45.9 × 60.5 in
Weight	5800 lb

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This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

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Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

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James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

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You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

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Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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