Cummins Onan Commercial QG 5500 Gasoline EFI 120/240V
Onan RV

Cummins Onan Commercial QG 5500 Gasoline EFI 120/240V

Designed for tough commercial applications, the Cummins Onan Quiet Gas Series generators are loaded with quality features. These include exceptionally low noise and vibration, easy installation, diagnostic capability and digital regulation which maintains voltage stability as loads change. The Quiet Gas EFI is the first Electronic Fuel Injection generator set in the industry.

The advanced digital control provides extensive diagnostic capabilities by constantly monitoring the generator set's operation and alerting the user to potential problems. It also assists the operator or service personnel in troubleshooting a variety of operating conditions and service checks.

Features & Benefits:

• First EFI (electronic fuel injection) generator set in its class.

EFI provides improved hot and cold start capability

• Integrated hydraulic pump option available (shown in picture)

• Quietest and lowest vibration generator set in its class

• Integrated housing design

• Enclosed muffler for ease of installation

• Self-diagnostic capability to simplify troubleshooting

• Runs two ACs

• Digital regulation for voltage stability as loads change

• Electronic governor for voltage stability and frequency control

• 2-year limited warranty, 5-year drive warranty

EFI Generator sets require a chassis-specific fuel system kit, see recommended products, p/n 541-1002.

Picture is representative of actual product.

• Effective January 1, 2011, gasoline generator sets on trailers, diesel chassis or any other non-motorized mobile apparatus must have an EVAP generator set, approved tank, EVAP canister, hoses and fittings all meeting the CARB Tier 3 and EPA phase 3 standards and specifications.  This law applies in all 50 states.

Country Living
Comment by Jim C. on 9th Nov 2014

My Mom and Dad are both in their 80's and live in the country. With the installation of the 6551 I can rest assured that they will never be without power, heat, ac and water. this is a great unit and worked perfectly upon startup. Should have installed this a lot sooner for them.

By the way, my son-in-law also has one for his home. I live in a motorhome or I would have one also.

Read More Customer Reviews