Cummins Onan QD 6000 Diesel RV Generator – A064K828 (6HDKAH-1044)

Cummins Onan QD 6000 Quiet Diesel RV Generator | Model 6HDKAH-1044 | Item A064K828 | 6kW | 120V | 60Hz

The Cummins Onan QD 6000 Quiet Diesel RV Generator (Item A064K828, Model 6HDKAH-1044) delivers 6,000 watts of reliable onboard power for diesel-powered motorhomes, luxury Class A coaches, Super C RVs, and other premium recreational vehicles. Designed to provide the comfort and convenience of home while traveling, the QD 6000 combines Cummins Onan's renowned Quiet Diesel™ technology with outstanding fuel efficiency, dependable performance, and clean electrical output for today's demanding RV electrical systems.

Operating at 120 volts, 60 Hz, single phase, the QD 6000 features a heavy-duty liquid-cooled three-cylinder diesel engine with computer-controlled variable-speed operation that automatically adjusts engine speed to match electrical demand. This intelligent design helps reduce fuel consumption, lowers operating noise, and extends engine life while delivering smooth, dependable power wherever your travels take you.

Whether you're replacing an older Cummins Onan RV generator or upgrading your diesel motorhome, the QD 6000 provides the capacity to power multiple RV appliances, rooftop air conditioners, battery chargers, entertainment systems, kitchen appliances, and other essential electrical equipment with the quiet, dependable operation RV owners expect from Cummins Onan.

Key Features

• 6,000 watts (6kW) continuous RV power output
• 120V single-phase electrical output
• 60 Hz operation
• Quiet Diesel™ sound-attenuated enclosure
• Heavy-duty liquid-cooled 3-cylinder diesel engine
• Computer-controlled variable-speed technology
• Pure sine wave electrical output
• Digital voltage regulation for clean, stable power
• Advanced onboard self-diagnostics
• Remote electric start capability
• Low-vibration mounting system
• Excellent fuel efficiency for extended runtime
• Designed for diesel-powered motorhomes
• Ideal for full-time RV living and extended travel
• Manufactured by Cummins Onan, the industry leader in RV generators

Technical Specifications

• Manufacturer: Cummins Onan
• Series: Quiet Diesel QD 6000
• Item Number: A064K828
• Model Number: 6HDKAH-1044
• Running Wattage: 6,000 Watts (6kW)
• Voltage: 120V
• Frequency: 60 Hz
• Phase: Single Phase
• Maximum Output: 50 Amps
• Fuel Type: Diesel
• Engine: Liquid-Cooled 3-Cylinder Diesel Engine
• Starting System: Remote Electric Start
• Output Type: Pure Sine Wave
• Dimensions (L × W × H): 36.3" × 23.6" × 22.3"
• Weight: 420 lbs

What Can the Cummins Onan QD 6000 Power?

The Cummins Onan QD 6000 is designed to support the electrical demands of modern diesel motorhomes. Depending on your RV's total electrical load, it can comfortably power:

• Two 15,000 BTU rooftop air conditioners
• Residential refrigerator
• Microwave and convection oven
• Coffee maker and kitchen appliances
• Battery chargers and inverter systems
• Televisions and entertainment equipment
• Satellite and Starlink internet systems
• Interior and exterior lighting
• Water pump and RV utilities
• Laptops, mobile devices, and sensitive electronics

Ideal Applications

• Class A diesel motorhomes
• Diesel pusher coaches
• Luxury RVs
• Super C motorhomes
• Extended off-grid camping
• Boondocking adventures
• Full-time RV living
• Cross-country travel
• Seasonal campground stays
• RV generator replacement projects

Why Choose the Cummins Onan QD 6000?

The Cummins Onan QD 6000 is one of the most trusted diesel RV generators available thanks to its combination of quiet operation, fuel efficiency, dependable power output, and exceptional durability. It has become a popular factory-installed generator for premium motorhome manufacturers and remains one of the most common replacement generators for diesel coaches.

Its variable-speed technology automatically adjusts engine RPM based on electrical demand, allowing the generator to operate more efficiently while reducing unnecessary engine wear, lowering noise levels, and extending service life compared to conventional fixed-speed generators.

With Cummins Onan's advanced Quiet Diesel™ enclosure, digital voltage regulation, and pure sine wave output, the QD 6000 provides clean, stable power that is safe for today's sophisticated RV electronics and appliances.

Why Choose a Quiet Diesel RV Generator?

Quiet Diesel generators are the preferred choice for diesel motorhome owners because they use the same fuel source as the coach, eliminating the need for gasoline or propane while providing exceptional runtime and fuel economy. They are engineered for long service life, quieter operation, and dependable performance during extended trips, making them ideal for full-time RVers and serious travelers.

Replacement Generator Information

The Cummins Onan QD 6000 (Item A064K828 / Model 6HDKAH-1044) is commonly selected as a replacement generator for older Cummins Onan diesel RV generators. Before ordering, verify your existing generator's model number, mounting dimensions, exhaust routing, fuel connections, and electrical requirements to ensure compatibility with your motorhome.

What's Included

• Cummins Onan QD 6000 Quiet Diesel RV Generator
• Model 6HDKAH-1044
• Item Number A064K828
• Installation and operator documentation
• Cummins manufacturer's warranty

Frequently Asked Questions

What fuel does the Cummins Onan QD 6000 use?

The QD 6000 operates exclusively on diesel fuel and is designed specifically for diesel-powered motorhomes.

Can the QD 6000 run two RV air conditioners?

Yes. The generator is designed to operate two 15,000 BTU rooftop air conditioners while still providing power for many additional RV appliances, depending on your total electrical load.

Does the generator produce clean power for electronics?

Yes. Pure sine wave electrical output and digital voltage regulation provide stable power for televisions, computers, battery chargers, Starlink systems, and other sensitive electronics.

Is the QD 6000 suitable for full-time RV living?

Absolutely. It is engineered for continuous-duty operation and is a popular choice for full-time RV travelers.

Is the Cummins Onan QD 6000 quiet?

Yes. Quiet Diesel™ technology combines sound insulation, vibration isolation, and variable-speed engine control to reduce operating noise compared to traditional generators.

Can this generator replace an older Cummins Onan generator?

Yes. The QD 6000 is frequently installed as a replacement generator in many diesel motorhomes. Always verify compatibility before purchasing.

Does the generator use the motorhome's diesel tank?

Yes. The generator is designed to operate from the same diesel fuel supply as your coach.

Can the QD 6000 be used for boondocking?

Yes. The QD 6000 is an excellent choice for extended off-grid camping and remote travel where shore power is unavailable.

Does it include remote start capability?

Yes. The generator supports remote starting from compatible RV interior control panels.

Why do RV manufacturers choose Cummins Onan generators?

Cummins Onan generators are recognized throughout the RV industry for their quiet operation, durability, nationwide service network, and long-term reliability, making them one of the most widely installed generator brands in luxury motorhomes.

Is professional installation recommended?

Yes. Professional installation is recommended to ensure proper fuel, exhaust, ventilation, cooling, and electrical connections while meeting all manufacturer requirements.