What is the power output of the Cummins C125D6D generator?

The Cummins C125D6D delivers 125 kW (125 kVA) of single-phase standby power at 120/240 V, ideal for commercial, agricultural, and large residential applications.

What type of engine does the Cummins C125D6D use?

It is powered by the Cummins 6CTA8.3-G liquid-cooled diesel engine, providing reliable performance, fuel efficiency, and long-term durability.

Is the C125D6D suitable for outdoor installation?

Yes, it features a corrosion-resistant, sound-attenuated enclosure, rated ~72 dB(A) at 7 meters, suitable for both commercial and agricultural outdoor sites.

What fuel type does the Cummins C125D6D use?

The generator runs on diesel and consumes approximately 9.0 gallons per hour (34.1 L/hr) at 100% load.

Does the Cummins C125D6D come with a digital controller?

Yes, it includes the Cummins PowerCommand® digital controller for precise monitoring, automatic start/stop, fault protection, and programmable exercise cycles.

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Cummins C125D6D - 125kW 120/240V 1 Phase Light Commercial Diesel Standby Generator - A060A344

Cummins C125D6D - 125kW 120/240V 1 Phase Light Commercial Diesel Standby Generator - A060A344

Cummins C125D6D - 125kW 120/240V 1 Phase Light Commercial Diesel Standby Generator - A060A344 | Portlandia Electric Supply

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Cummins C125D6D - 125kW 120/240V 1 Phase Light Commercial Diesel Standby Generator - A060A344

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$37,807.61 USD

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Cummins C125D6D - 125kW 120/240V 1 Phase Light Commercial Diesel Standby Generator - A060A344 $37,807.61

Specifications

Datasheet

Wattage 125kW standby

Fuel Type Diesel

Voltage 120/240V

Phase 1-Phase

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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.

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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.

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Cummins C125D6D – 125 kW 120/240 V Single-Phase Light Commercial Diesel Standby Generator

The Cummins C125D6D (MPN A060A344) delivers 125 kW of dependable single-phase standby power for light commercial, agricultural, and large residential applications. Powered by Cummins’ proven 6CTA8.3-G engine, this liquid-cooled diesel generator combines robust performance with exceptional fuel efficiency and low noise operation. Designed for long-term reliability, the C125D6D ensures consistent backup power during extended outages and demanding conditions.

Key Features

125 kW (125 kVA) standby rated power at 60 Hz
Single-phase 120/240 V output ideal for commercial and agricultural sites
Liquid-cooled Cummins 6CTA8.3-G diesel engine operating at 1800 rpm
Electronic governor provides precise voltage and frequency regulation
Corrosion-resistant, sound-attenuated enclosure ensuring ~72 dB(A) @ 7 m operation
Cummins PowerCommand® digital controller for seamless power management and monitoring
Automatic start/stop and fault protection with programmable exercise cycle
Engineered for reliable cold and hot weather operation under heavy load

Electrical Specifications (Standby Rating)

Rated Power (Pmax)	125 kW
Apparent Power (kVA)	125 kVA
Voltage	120/240 V, Single-Phase
Frequency	60 Hz
Power Factor	1.0
Voltage Regulation	±1.0 %
Frequency Regulation	±0.25 %
Fuel Type	Diesel

Mechanical & Engine Data

Engine Model	Cummins 6CTA8.3-G Diesel Engine
Displacement	8.3 L
Rated Speed	1800 rpm
Cooling System	Liquid-Cooled
Fuel Consumption @ 100% Load	≈ 9.0 gal/hr (34.1 L/hr)
Dimensions (L × W × H)	118 in (2997 mm) × 43 in (1092 mm) × 65 in (1651 mm)
Weight (Dry)	≈ 4,000 lb (1814 kg)

Warranty & Compliance

2-year limited warranty for standby applications (extended coverage available)
UL 2200 listed and EPA Tier 3 emission certified
NFPA 110 capable configuration for emergency standby power
Complies with ISO 8528-5 performance and safety standards

Environmental & Site Ratings

Operating Temperature Range	–20 °F (–29 °C) to 122 °F (50 °C)
Fuel Tank (Optional Base)	Up to 100 gal integrated diesel capacity
Sound Level @ 7 m	~72 dB(A)

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?

Cummins C125D6D – 125 kW 120/240 V Single-Phase Light Commercial Diesel Standby Generator

Key Features

125 kW (125 kVA) standby rated power at 60 Hz
Single-phase 120/240 V output ideal for commercial and agricultural sites
Liquid-cooled Cummins 6CTA8.3-G diesel engine operating at 1800 rpm
Electronic governor provides precise voltage and frequency regulation
Corrosion-resistant, sound-attenuated enclosure ensuring ~72 dB(A) @ 7 m operation
Cummins PowerCommand® digital controller for seamless power management and monitoring
Automatic start/stop and fault protection with programmable exercise cycle
Engineered for reliable cold and hot weather operation under heavy load

Electrical Specifications (Standby Rating)

Rated Power (Pmax)	125 kW
Apparent Power (kVA)	125 kVA
Voltage	120/240 V, Single-Phase
Frequency	60 Hz
Power Factor	1.0
Voltage Regulation	±1.0 %
Frequency Regulation	±0.25 %
Fuel Type	Diesel

Mechanical & Engine Data

Engine Model	Cummins 6CTA8.3-G Diesel Engine
Displacement	8.3 L
Rated Speed	1800 rpm
Cooling System	Liquid-Cooled
Fuel Consumption @ 100% Load	≈ 9.0 gal/hr (34.1 L/hr)
Dimensions (L × W × H)	118 in (2997 mm) × 43 in (1092 mm) × 65 in (1651 mm)
Weight (Dry)	≈ 4,000 lb (1814 kg)

Warranty & Compliance

2-year limited warranty for standby applications (extended coverage available)
UL 2200 listed and EPA Tier 3 emission certified
NFPA 110 capable configuration for emergency standby power
Complies with ISO 8528-5 performance and safety standards

Environmental & Site Ratings

Operating Temperature Range	–20 °F (–29 °C) to 122 °F (50 °C)
Fuel Tank (Optional Base)	Up to 100 gal integrated diesel capacity
Sound Level @ 7 m	~72 dB(A)

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