Enclosed Diesel

Cummins C100D6C

100kW liquid-cooled standby generator, Diesel. Clinics, restaurants, data closets, cold storage, multi-tenant retail and small industrial.

Representative manufacturer image of the range. Enclosure finish, color and dimensions vary by model and configuration — see the specifications below for this unit.

100 kW Diesel Liquid-cooled 24-hour base tank Sound Level 1 enclosure, sandstone

The C100D6C is a diesel standby set in a Sound Level 1 sandstone enclosure. It weighs 3309 lb and measures 119 x 40 x 83 inches.

This configuration includes a 24-hour base fuel tank, so it runs a full day on its own supply before anyone has to arrange a fuel delivery.

Diesel gives you the highest power density and fuel you can store on site, independent of the gas utility - the usual choice when the load is large, the runtime requirement is fixed, or code requires on-site fuel.

Equipment price

$40,704.71

Equipment only — installation quoted separately

✓ Concrete or composite pad
✓ Gas line sizing and pressure test
✓ Transfer switch and electrical tie-in
✓ Permit and city inspection
✓ Startup, load test and walkthrough

The five items above are part of the installation quote, not the equipment price.

Reserve this unit — (214) 957-4307

Refundable deposit · locks this price 90 days · schedules your free survey · applies 100% to final invoice

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Specifications

Model	Cummins C100D6C
Rated output	100 kW
Fuel	Diesel
Cooling	Liquid-cooled
Enclosure	Sound Level 1 enclosure, sandstone
Fuel tank	24-hour base tank
Weight	3309 lb
Dimensions (L×W×H)	119 x 40 x 83 in
Voltage configurations	120/240 1Ph
Extreme cold package	Available as an upgrade
Transfer switch	Sold separately, sized to your service
Application	commercial
Standby rating	100 kW / 125 kVA
Prime rating	90 kW / 113 kVA
Engine	QSB5-G13
Alternator	UC3D
Emissions	EPA Tier 3
Enclosure options	Available open, or in a Sound Attenuated Enclosure Level 1 or Level 2. A Level 1 to Level 2 upgrade kit exists.
Displacement	4.5 liters (272 in³)
Rated speed	1800 rpm
Controller	PowerCommand 2.3
Certifications	NFPA 110 Level 1 compliance, FCC 47 CFR part 15 class A and B
Warranty	2 year / 400 hour base warranty. 3 year and 5 year standby warranty options are available.

Available configurations

This model ships in a single factory configuration.

Part number	Voltage	Phase	Price
A063P977	120/240	1Ph	$40,704.71

All prices are for the equipment only.

Built in

What the C100D6C does that the spec table does not show

Fuel you control

Diesel is stored on site, so the set is independent of the gas utility entirely. For a clinic, a restaurant, cold storage or a data closet that independence is usually the whole reason for choosing diesel.

1800 rpm

Half the engine speed of a residential air-cooled unit. Fewer revolutions per running hour is why these are specified where the set may run for days rather than minutes.

PowerCommand control

Digital governing, voltage regulation, alarm and status monitoring, with auto-shutdown on fault detection and NFPA 110 Level 1 compliance.

Fuel that needs managing

Diesel degrades, absorbs water and grows biological contamination if it sits. A set that runs rarely needs its fuel maintained, not just topped up — which is part of what a service visit covers.

Accessories and maintenance parts for this unit →
Specifications on this page are taken from the Cummins published specification sheet for the air-cooled Connect range. Download it from Cummins →

Pairs with

Transfer switches for a 100kW set

The switch is sized to your electrical service, not to the generator. These are the families that typically apply at this output — we confirm the exact one at the survey.

OTEC 600A

8 configurations.

From

$8,288.82

Questions about the C100D6C

How much does a Cummins C100D6C cost installed in Dallas-Fort Worth?

The C100D6C equipment price is $40,704.71. Installation on a 100kW diesel unit varies too widely to band honestly - the pad, the fuel supply, the switchgear and the electrical service are all engineered to the specific site. We quote it in writing after a site survey, and we will tell you the drivers before we quote so you can see where the money goes.

What will the C100D6C actually run?

Commercial standby power for facilities with substantial motor and HVAC load. Final confirmation comes from a load calculation against your actual panel, which we do at the survey.

Do I need a transfer switch with the C100D6C?

Yes. A standby generator cannot be code-compliantly connected without an automatic transfer switch - it is what keeps your generator from backfeeding the utility line and endangering line crews. The switch is sized to your electrical service, not to the generator, so we confirm your service size at the survey before specifying it.

Is the C100D6C in stock?

Availability changes weekly. A refundable deposit reserves a specific unit and locks the equipment price for 90 days, which is the practical way to hold one while the survey and permit work happen. If we cannot source it in a reasonable window, you get the deposit back.

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