Cummins Onan Commercial QD 8 Diesel Generator | HDKAU | 8kW | 120V | 60Hz
TheCummins Onan Commercial QD 8 Diesel Generator (HDKAU)delivers8,000 watts of dependable commercial-grade powerfor demanding mobile and industrial applications. Built for continuous-duty operation, the Commercial QD 8 is trusted by utility companies, municipalities, telecommunications providers, construction contractors, rental fleets, emergency response organizations, and service vehicle manufacturers who require reliable onboard power wherever the job takes them.
Designed to perform in harsh environments, the Commercial QD 8 combines Cummins Onan's provenQuiet Diesel™ technology, a heavy-duty liquid-cooled diesel engine, and advanced sound attenuation into a compact generator package that delivers dependable electrical power with excellent fuel efficiency and reduced operating noise. Its rugged construction allows it to withstand demanding commercial applications while providing the long service life expected from Cummins Onan equipment.
Operating at120 volts, 60 Hz, single phase, the HDKAU produces up to66.7 ampsof clean electrical power, making it an excellent choice for powering compressors, pumps, lighting systems, HVAC equipment, communications systems, battery chargers, mobile offices, work trailers, service trucks, and other commercial electrical loads. Whether installed in a utility truck, construction trailer, mobile workshop, emergency response vehicle, telecommunications trailer, or specialty commercial vehicle, the Commercial QD 8 provides dependable power when and where it is needed most.
Key Features
8,000 watts (8kW) continuous commercial power output
120V single-phase electrical output
60 Hz operation
Heavy-duty liquid-cooled diesel engine
Quiet Diesel™ sound-attenuated enclosure
Commercial continuous-duty design
Excellent fuel efficiency for extended runtimes
Digital voltage regulation for stable electrical output
Weather-resistant enclosure for demanding environments
Compact footprint for commercial vehicle installations
Low-vibration operation
Designed for long service life and simplified maintenance
Ideal for mobile commercial equipment
Built by Cummins Onan, a global leader in commercial power generation
Technical Specifications
Manufacturer:Cummins Onan
Series:Commercial Quiet Diesel QD 8
Model:HDKAU
Running Wattage:8,000 Watts (8kW)
Voltage:120V
Frequency:60 Hz
Phase:Single Phase
Maximum Output:66.7 Amps
Fuel Type:Diesel
Engine:Liquid-Cooled Diesel Engine
Dimensions (L × W × H):33.6" × 22.2" × 16.7" (853 × 564 × 424 mm)
Weight:420 lbs (191 kg)
What Can the Commercial QD 8 Power?
With 8,000 watts of continuous output, the Cummins Onan Commercial QD 8 is capable of powering a wide variety of commercial equipment in the field, including:
Air compressors
Water pumps
Hydraulic power units
LED work lighting
Construction tools
Mobile office equipment
HVAC systems
Battery charging systems
Communications and telecommunications equipment
Traffic control equipment
Service truck tools
Remote monitoring systems
Industrial electronics
Emergency response equipment
Ideal Applications
Commercial work trucks
Utility service vehicles
Construction trailers
Telecommunications trailers
Municipal fleet vehicles
Emergency response vehicles
Rental equipment fleets
Mobile workshops
Service body trucks
Oil and gas support vehicles
Remote job sites
Industrial maintenance vehicles
Mobile command centers
Specialty commercial vehicles
Why Choose the Cummins Onan Commercial QD 8?
The Commercial QD 8 is engineered specifically for professionals who depend on reliable mobile power every day. Unlike residential generators, the Commercial Quiet Diesel Series is built for continuous-duty commercial operation, allowing businesses to power critical equipment throughout long workdays while minimizing downtime.
The liquid-cooled diesel engine provides outstanding durability, excellent fuel economy, and long service intervals, while the Quiet Diesel™ enclosure significantly reduces operating noise and protects internal components from dust, moisture, and harsh jobsite conditions. The compact design also makes installation easier in commercial trucks, trailers, and specialty equipment where available space is limited.
With decades of proven performance, the Cummins Onan Commercial QD Series continues to be one of the most trusted mobile power solutions for government agencies, utility companies, telecommunications providers, construction contractors, and industrial service organizations throughout North America.
Why Choose a Diesel Commercial Generator?
Diesel generators are widely used in commercial applications because they deliver excellent fuel efficiency, dependable performance under heavy loads, long engine life, and reduced maintenance compared to many gasoline-powered alternatives. Diesel fuel is also commonly available at commercial fleet facilities, making the Commercial QD 8 an ideal solution for businesses operating service vehicles and mobile equipment.
What's Included
Cummins Onan Commercial QD 8 Diesel Generator
HDKAU model configuration
Factory-installed Quiet Diesel™ enclosure
Installation and operator documentation
Cummins manufacturer's warranty
Frequently Asked Questions
What can an 8kW commercial diesel generator power?
The Commercial QD 8 can power compressors, pumps, work lights, HVAC equipment, communications systems, battery chargers, mobile offices, construction tools, and many other commercial electrical loads simultaneously.
Is the Commercial QD 8 designed for continuous-duty operation?
Yes. The Commercial Quiet Diesel Series is engineered specifically for demanding commercial applications where dependable long-term operation is essential.
Is this generator quiet?
Yes. Quiet Diesel™ technology combines advanced sound insulation, vibration isolation, and a fully enclosed housing to significantly reduce operating noise.
What fuel does the HDKAU use?
The Commercial QD 8 operates exclusively on diesel fuel, providing outstanding fuel economy, excellent reliability, and long engine life.
Where is this generator commonly installed?
It is frequently installed in utility trucks, service vehicles, telecommunications trailers, construction trailers, municipal fleets, emergency response vehicles, mobile workshops, rental equipment, and specialty commercial vehicles.
Can the Commercial QD 8 power sensitive electronics?
Yes. Digital voltage regulation helps provide clean, stable electrical power suitable for communications equipment, computers, controllers, and other sensitive electronics.
Is the Commercial QD 8 weather resistant?
Yes. The enclosed Quiet Diesel housing helps protect internal components from dirt, moisture, and demanding outdoor operating environments.
Why choose a diesel generator instead of gasoline?
Diesel generators generally offer longer service life, improved fuel efficiency, excellent reliability under continuous loads, and lower operating costs for commercial fleet applications.
Is professional installation recommended?
Yes. Professional installation helps ensure proper fuel connections, ventilation, cooling, exhaust routing, and electrical integration for safe, reliable operation.
Who is the Commercial QD 8 best suited for?
The Commercial QD 8 is ideal for contractors, municipalities, utility companies, telecommunications providers, rental fleets, industrial service organizations, emergency response agencies, and any business requiring dependable mobile diesel power.