Cummins Onan QG 5500 5.5kW Generator 5.5HGJAD-2274+ Commercial Mobile Gas Single Phase 120 Volt Air Cooled EVAP New

Features

What our Experts Think

• Reliable 5.5kW commercial mobile generator designed for RVs, service vehicles, and light-duty mobile power applications
• Built on the proven Cummins Onan QG platform (5.5HGJAD-2274+) for consistent performance and long service life
• EFI (Electronic Fuel Injection) system delivers improved starting, smoother operation, and better fuel efficiency in varying conditions
• EVAP-compliant design supports modern emissions requirements for mobile fuel systems using separate tanks
• Produces stable 120V single-phase output, ideal for appliances, onboard systems, and sensitive electronics
• Engineered for low noise and vibration operation (~69 dB at 10 ft) for more comfortable mobile and RV use
• Integrated digital voltage regulation maintains consistent power output during load changes for equipment protection
• Fully enclosed design with spark-arrestor muffler system, supporting safer and cleaner operation in mobile environments
• Built-in self-diagnostics and easy service access reduce downtime and simplify maintenance in the field
• Backed by Cummins Onan’s reputation for durability, reliability, and long-term commercial-grade performance

Q&A

Maintenance Tips

• Run regular exercise cycles to keep engine, alternator, and fuel system in proper working condition
• Use fresh gasoline and avoid long storage to prevent fuel degradation in the EVAP system
• Inspect EVAP system regularly for vapor leaks, cracked hoses, or loose fittings
• Change oil & filters on schedule using Cummins-approved air-cooled engine oil
• Clean or replace air filter to maintain airflow and efficient combustion
• Check spark plug condition and replace if worn or fouled for reliable starting
• Inspect fuel lines & regulator system for leaks or blockages
• Maintain battery health with proper charging and clean, corrosion-free terminals
• Keep cooling airflow clear by removing dust, debris, and obstructions around enclosure