Cummins Onan QD 8000 8kW RV Generator 8HDKAK-1046 RV Diesel Single Phase 120 Volt Liquid Cooled New - A064K829

What our Experts Think

• Premium onboard RV diesel power system
  The Cummins Onan QD 8000 (8HDKAK-1046 / A064K829) is an 8kW liquid-cooled Quiet Diesel generator designed for motorhomes and high-end RV applications that demand reliable, continuous onboard power.
• Strong usable output for full RV loads
  Delivers 8,000W single-phase 120V power (≈66.6A), capable of running multiple air conditioners plus appliances with stable performance under load.
• Quiet Diesel engineering advantage
  Built with a sound-attenuated enclosure, variable-speed control, and vibration isolation, reducing noise and improving comfort inside the RV compared to traditional diesel sets.
• Efficient load-based operation
  Computer-controlled variable RPM adjusts engine speed based on demand, improving fuel efficiency, noise control, and engine longevity during partial loads.
• Clean, stable power for modern electronics
  Produces regulated inverter-quality output with tight voltage control, protecting sensitive RV electronics, appliances, and HVAC systems.
• Built for long-duty mobile reliability
  Liquid-cooled diesel architecture (≈719cc engine platform) supports extended runtime and heavy cycling, making it suitable for full-time RV living and commercial mobile use.
• Service-friendly design for operators
  Includes self-diagnostics, accessible maintenance points, and vibration-isolated mounting, reducing downtime and simplifying upkeep.
• Strong HVAC capability for its class
  Engineered to run dual RV air conditioners (typically 15,000 BTU units) with additional power headroom depending on load conditions.
• Heavy-duty build quality
  Around 420 lbs operating weight, reflecting industrial-grade components and a robust liquid-cooled diesel platform designed for long service life.

Q&A

Q: What is the Cummins Onan QD 8000 (8HDKAK-1046 / A064K829) RV Diesel Generator?
A: The Cummins Onan QD 8000 is an 8kW (8,000W) Quiet Diesel RV generator designed for motorhomes and specialty mobile applications, delivering reliable 120V single-phase power with low noise and vibration.

Q: What is the power output?
A: It provides 8,000 watts of rated output (8kW) and can supply about 66.6 amps at 120V, enough to run two RV air conditioners plus additional onboard loads.

Q: What engine does it use?
A: It is powered by a liquid-cooled Kubota diesel engine, designed for durability, efficiency, and long operating life in mobile environments.

Q: Is it quiet?
A: Yes. It uses Cummins Quiet Diesel™ technology with a sound-attenuated enclosure, load-based speed control, and vibration isolation, making it significantly quieter than standard diesel generators.

Q: Does it produce clean power?
A: Yes, it delivers high-quality pure sine wave output with voltage regulation, safe for sensitive RV electronics and appliances.

Q: What fuel does it use?
A: It runs on diesel fuel, offering better fuel efficiency and long runtime compared to gasoline-powered RV generators.

Q: What are its key features?
A: It includes automatic load-based RPM control, self-diagnostics, easy service access points, and a sound-insulated housing with integrated cooling and muffler system.

Q: What is it best used for?
A: It is ideal for large RVs, motorhomes, and mobile commercial setups needing reliable onboard diesel power for air conditioning and appliances.

Q: Why choose the Cummins Onan QD 8000 (A064K829)?
A: It offers high-output RV power, diesel efficiency, ultra-quiet operation, and proven heavy-duty reliability, making it a top-tier choice for serious RV users.

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