Cummins Onan QD 8000 Diesel RV Generator – A064K829 (8HDKAK-1046)

Cummins Onan QD 8000 Quiet Diesel RV Generator | Model 8HDKAK-1046 | Item A064K829 | 8kW | 120V | 60Hz

The Cummins Onan QD 8000 Quiet Diesel RV Generator (Item A064K829, Model 8HDKAK-1046) is one of the most popular diesel-powered RV generators for luxury Class A motorhomes and diesel pushers. Delivering 8,000 watts of clean, dependable onboard power, the QD 8000 is engineered to operate today's larger recreational vehicles with the quiet performance, fuel efficiency, and long-term reliability that Cummins Onan is known for.

Designed specifically for diesel-powered coaches, the QD 8000 operates on the same fuel tank as your motorhome, eliminating the need for gasoline or propane while providing exceptional runtime for extended travel and off-grid camping. Its advanced Quiet Diesel™ technology, computer-controlled variable-speed engine, digital voltage regulation, and sound-insulated enclosure help deliver smooth, stable power with reduced fuel consumption and quieter operation than traditional fixed-speed generators.

Whether you're replacing an older Cummins Onan generator or equipping a new luxury motorhome, the QD 8000 provides reliable electrical power for multiple air conditioners, residential refrigerators, induction cooktops, microwaves, entertainment systems, battery chargers, and today's increasingly sophisticated RV electrical systems.

Key Features

• 8,000 watts (8kW) continuous RV power output
• 120V single-phase electrical output
• 60 Hz operation
• Quiet Diesel™ sound-attenuated enclosure
• Heavy-duty liquid-cooled diesel engine
• Computer-controlled variable-speed operation
• Digital voltage regulation
• Pure sine wave electrical output
• Advanced onboard diagnostics
• Remote electric start capability
• Low-vibration mounting system
• Excellent fuel efficiency
• Designed for full-time RV use
• Ideal for luxury diesel motorhomes
• Built by Cummins Onan, the industry's leading RV generator manufacturer

Technical Specifications

• Manufacturer: Cummins Onan
• Series: Quiet Diesel QD 8000
• Item Number: A064K829
• Model Number: 8HDKAK-1046
• 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
• Starting System: Remote Electric Start
• Output Type: Pure Sine Wave
• Dimensions (L × W × H): 33.6" × 22.2" × 16.7" (853 × 564 × 424 mm)
• Weight: 420 lbs (191 kg)

What Can the Cummins Onan QD 8000 Power?

The QD 8000 is designed to support nearly every electrical system found in today's luxury diesel motorhomes. Depending on your coach's electrical load, it can comfortably power:

• Two or more rooftop air conditioners
• Residential refrigerator
• Microwave and convection oven
• Electric water heater
• Induction cooktop
• Televisions and entertainment systems
• Starlink and internet equipment
• Battery chargers and inverter systems
• Interior and exterior lighting
• Coffee makers, kitchen appliances, and everyday electronics

Ideal Applications

• Luxury Class A diesel motorhomes
• Diesel pusher coaches
• Full-time RV living
• Extended boondocking
• Cross-country travel
• Luxury coach conversions
• Premium fifth wheels with diesel systems
• RV generator replacement projects
• High-demand electrical systems
• Seasonal and year-round RV travel

Why Choose the Cummins Onan QD 8000?

The Cummins Onan QD 8000 has earned its reputation as one of the most trusted diesel RV generators because it combines dependable power, quiet performance, and exceptional durability into one compact package. It is commonly factory-installed by many of the leading luxury motorhome manufacturers and remains one of the most requested replacement generators for diesel coaches.

Its variable-speed technology automatically adjusts engine speed to match electrical demand. This not only helps reduce fuel consumption but also lowers operating noise and minimizes engine wear during lighter electrical loads.

Unlike portable generators, the QD 8000 is permanently installed within the RV, starts from an interior control panel, and integrates directly into your coach's electrical and fuel systems for true turnkey onboard power.

Why Choose a Diesel RV Generator?

Diesel generators are the preferred choice for large motorhomes because they operate from the same diesel fuel tank as the coach. They eliminate the need for carrying separate gasoline or propane while offering longer service life, greater fuel efficiency, outstanding reliability, and excellent performance during extended travel or off-grid camping.

Replacement Generator Information

The Cummins Onan QD 8000 (A064K829 / 8HDKAK-1046) is frequently selected as a replacement generator for aging Cummins Onan diesel RV generators installed in luxury Class A motorhomes. Before ordering, verify the model number, mounting dimensions, exhaust routing, fuel connections, and electrical specifications to ensure compatibility with your coach.

What's Included

• Cummins Onan QD 8000 Quiet Diesel RV Generator
• Model 8HDKAK-1046
• Item Number A064K829
• Installation and operator documentation
• Cummins manufacturer's warranty

Frequently Asked Questions

What fuel does the QD 8000 use?

The QD 8000 operates exclusively on diesel fuel and is designed for diesel-powered motorhomes.

Can the QD 8000 run multiple air conditioners?

Yes. An 8kW output is commonly capable of powering multiple rooftop air conditioners along with other onboard appliances, depending on total electrical demand.

Is this generator suitable for full-time RV living?

Absolutely. The QD 8000 was engineered for continuous-duty operation and is an excellent choice for full-time RVers.

Does the generator produce clean power for electronics?

Yes. Pure sine wave output and digital voltage regulation provide stable power for modern electronics and sensitive RV equipment.

Is the QD 8000 quiet?

Yes. Quiet Diesel technology combines sound insulation, vibration isolation, and variable-speed operation to reduce operating noise.

Can this replace an older Cummins Onan generator?

Yes. Many owners choose the QD 8000 when replacing older Cummins Onan diesel generators. Always verify dimensions and electrical compatibility before purchasing.

Does it have remote start?

Yes. The generator supports remote starting from compatible interior RV controls.

Why do luxury RV manufacturers install Cummins Onan generators?

Cummins Onan generators are known for their reliability, quiet operation, extensive service network, and long service life, making them one of the most widely installed RV generator brands.

Can the QD 8000 be used for boondocking?

Yes. The generator is an excellent choice for extended off-grid camping, allowing you to power essential RV systems when shore power is unavailable.

Is professional installation recommended?

Yes. Professional installation is recommended to ensure proper fuel, cooling, exhaust, and electrical integration.