Rental fleet & commercial · DOT trailer

Cummins C12D6RE — 12kW Mobile Diesel Generator

12kW standby, 10.8kW prime. Rental fleets and contractors: job-site offices, tool power, light towers and small temporary services.

Cummins C12D6RE 12kW liquid-cooled Diesel mobile generator on a trailer

12 kW standby EPA Tier 4 Final 26 gal tank ~29.5 hr runtime 62 dB(A) at 20 ft, half load

The C12D6RE arrives as a complete, self-contained power plant: engine, alternator, controls, fuel and distribution panel in a sound-attenuated, lockable enclosure on its own trailer. Park it, connect the load and start it. There is no pad to pour and no gas line to run.

It runs a Kubota D1503-M, 1.5 L in-line 4-cylinder, liquid-cooled certified to EPA Tier 4 Final. The onboard 26 gallon tank gives about 29.5 hours at 75% of prime load.

Equipment price

$21,992.00

Freight quoted per shipment · confirmed by phone before it is booked

Part number	A076S269
Weight with fuel	2,017 lb
Trailer	Single axle, DOT

This price is for the equipment. Installation is not included.

Delivery arranged separately — not charged here

Typically ships in 4-13 days

Tax-exempt (certificate required) or fleet order? Call (214) 957-4307

A separate service

Connecting it to a building?

A trailer generator feeds a building through a transfer switch or a generator docking station, installed by a licensed electrician. That is not part of the equipment sale. In Dallas-Fort Worth we quote it in writing after a free site survey.

Get a hookup quote

Prefer to talk it through? Have us call you.

Specifications

Model	Cummins C12D6RE
Standby rating (60 Hz)	12 kW
Prime rating (60 Hz)	10.8 kW
Engine	Kubota D1503-M, 1.5 L in-line 4-cylinder, liquid-cooled
Emissions	EPA Tier 4 Final
Alternator	Cummins Onan brush-type, 4-pole, digital voltage regulation
Control	Onboard controller with self-diagnostics and GPS connectivity
Fuel tank	26 gal diesel
Runtime	About 29.5 hours at 75% of prime load
Fuel use at standby rating	1/4 load: 0.52 gal/hr · 1/2 load: 0.71 gal/hr · 3/4 load: 0.97 gal/hr · full load: 1.28 gal/hr
Sound level	62 dB(A) at 20 ft, half load
Outlets and connections	120 V GFCI duplex receptacles (20 A) and a 240 V 50 A GFCI twist-lock
Main breaker	50 A two-pole on the 240 V twist-lock
Size with trailer (L×W×H)	101 x 71 x 48.5 in
Weight with trailer	1,801 lb dry · 2,017 lb with fuel
Tires	ST205/75R15, 2 tires
Starting system	12 V DC
Operating conditions	Operates from -20°F to 120°F
Source	Cummins S-6747 (01/24) specification sheet

Weights are Cummins CAD figures, within about 2%. Specifications are subject to change by the manufacturer.

Voltage configurations

This model ships in a single factory configuration.

Voltage	Phase	Price
120/240 V	1Ph	$21,992.00

Rated amps at standby

120/240 V 1Ph	100/50 A

Three-phase amps assume a 0.8 power factor.

Built as a rental package

What makes the C12D6RE fleet-ready

✓ Sound-controlled housing with a single-side service door
✓ GPS connectivity for fleet tracking
✓ Self-diagnostic controller with maintenance reminders
✓ 4-point isolated mounting for low vibration
✓ Onboard service tool box
✓ Aluminum 26 gal fuel tank

Questions about the C12D6RE

How much is the Cummins C12D6RE?

The C12D6RE is $21,992.00 for the equipment, the same at every voltage it is offered in. Freight is not charged at checkout: it is quoted per shipment, and we confirm it with you by phone before anything is booked. Sales tax is calculated at checkout from the delivery address. No installation is included or required to run it as a stand-alone generator.

Can we buy the C12D6RE for a rental fleet?

Yes. This is a Cummins rental package, built for fleet use: a lockable enclosure, onboard fluid containment and controls designed for rental operators. Rental companies and commercial buyers can order online or by phone. Tax-exempt purchases require a valid Texas resale or exemption certificate. Without one on file, sales tax is charged at checkout. To buy tax-exempt, provide your certificate before ordering by calling (214) 957-4307; online checkout cannot accept a certificate. Orders for several units are also easier to arrange by phone.

Which voltage should I choose?

The C12D6RE is a 120/240 1Ph unit, which covers standard 120 V and 240 V tools, job-site panels and single-phase loads. It is not offered in a three-phase build.

How long will the C12D6RE run on a tank?

The onboard tank holds 26 gallons, which Cummins rates at about 29.5 hours at 75% of prime load. At full standby load it burns 1.28 gallons an hour.

What do I need to tow the C12D6RE?

It weighs 1,801 lb dry and 2,017 lb with a full tank, about 1 tons, on a single-axle trailer. Check your tow vehicle and hitch against the wet weight, not the dry weight.

Can the C12D6RE power a building?

Yes, but not by plugging it in. Connecting a generator to a building's wiring needs a properly rated transfer switch or generator docking station installed by a licensed electrician, so the generator cannot back-feed the utility line. That work is not sold with the equipment. In Dallas-Fort Worth we quote it separately after a site survey.

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