

Model: Onan QG5500 - A063B873 I 5.5HGJAB-1270 | Watts - 5500W LP VAPOR | RPM - 2400 | Circuit Breaker: (2) 30A
✅ IN STOCK - 3-5 DAY LEAD TIME
Onan QG5500 LP RV Generator: Power Your Adventures in Whisper-Quiet Comfort
The Quietest Generator in Its Class – Because Your Peace Matters
Your RV is your escape. A place where memories unfold around campfires, sunsets stretch across open skies, and the only sounds should be laughter, not engine noise. The Onan QG5500 delivers reliable, whisper-quiet power that fades into the background, letting you focus on what truly matters: time with the people you love.
Built for the Way You RV
Whether you're chasing cooler temperatures in the mountains or soaking up desert sun, the QG5500 keeps your comfort systems running effortlessly. Power two 15,000 BTU air conditioners simultaneously with capacity to spare for lights, appliances, and everything else that makes your RV feel like home.
Performance That Speaks Volumes (By Staying Quiet)
Exceptionally Quiet Operation
At just 69 dB(A) from 10 feet at half-load, the QG5500 meets strict National Park Service sound requirements. Your neighbors will thank you.
Rock-Solid Reliability
Cummins Onan's 80+ years of engineering excellence means proven performance you can count on, trip after trip.
Runs Cool Under Pressure
Advanced digital voltage regulation maintains steady power as loads change, protecting sensitive electronics and ensuring smooth operation of all your systems.
Installation Made Simple
Integrated enclosed muffler design and exceptionally low vibration levels make setup straightforward and operation smooth.
Smart Diagnostics
Self-diagnostic capability takes the guesswork out of maintenance, getting you back on the road faster if service is needed.
Protected Investment
3-year limited warranty plus lifetime drive warranty demonstrates Cummins Onan's confidence in quality and durability.
Technical Specifications
Power Output
- Model: QG5500 LP Vapor (gasoline version also available)
- Capacity: Runs two 15,000 BTU air conditioners plus 1,000W base load at 100°F
Dimensions & Weight
- Weight: 288 lbs
- Size (L×W×H): 33.6" × 22.2" × 16.7"
- Sound Level: 69 dB(A) at 10 feet, half-load
Engine
- Type: Cummins Onan 4-cycle OHV 90° V-twin
- Displacement: 39.8 cubic inches
- Maximum Power: 10.7 bhp (8kW)
- Starting: Remote 12V automotive-type starter with automatic disconnect
- Oil Capacity: 2.0 quarts
Alternator
- Design: Revolving field, AC, 2-pole self-excited, two bearing
- Cooling: Direct drive centrifugal blower with cast aluminum housing
- Voltage Regulation: Microprocessor-controlled digital voltage regulator
- Bearings: Double-sealed, pre-lubricated ball bearing
Fuel Consumption (LP Vapor)
- No Load: 0.4 GPH
- Half Load: 0.8 GPH
- Full Load: 1.1 GPH
Operating Range
- Temperature: 0°F to 120°F (-18°C to 49°C)
- Note: Maximum temperature depends on LP tank capacity, surface area, and butane content
Ready to Ship
In Stock Now – Call us today for a personalized shipping quote and get your RV adventure-ready. Experience the reliability and whisper-quiet performance that has made Cummins Onan the trusted choice of RV owners for over 80 years.