Cummins Onan QG 7000i DF Dual Fuel RV Generator 120/240V | 7HGLCA-8312 | A077T574

Cummins Onan QG 7000i DF Dual Fuel RV Generator

Power your motorhome, fifth wheel or specialty vehicle with the Cummins Onan QG 7000i DF Dual Fuel RV Generator. Model 7HGLCA-8312, Cummins part number A077T574, is a permanently installed inverter generator designed to operate on gasoline or LPG propane vapor, giving RV owners greater flexibility when selecting or replacing an onboard power system.

The QG 7000i DF produces up to 7,000 watts on gasoline and 6,500 watts on propane. Its 120/240V single-phase output can support demanding RV electrical systems, including two rooftop air conditioners, a microwave, refrigerator, converter, battery charger, televisions, lighting and other onboard equipment, subject to the total connected load.

Unlike the older fixed-speed QG 7000 design, the QG 7000i DF uses advanced inverter technology, a variable-speed engine and a permanent-magnet alternator. The engine automatically adjusts its operating speed according to electrical demand, helping reduce fuel consumption, noise and vibration while producing clean, stable electricity for sensitive electronics.

Dual-Fuel Flexibility for RV Travel

The QG 7000i DF gives RV manufacturers, installers and owners the ability to use the generator in gasoline-fueled or propane-fueled applications. This makes it a versatile option for motorhomes, fifth wheels, toy haulers, horse trailers, mobile command vehicles and other platforms that may use different onboard fuel systems.

Gasoline provides the generator's full 7,000-watt output, while LPG propane vapor provides up to 6,500 watts. Propane may appeal to owners who prefer cleaner fuel storage or already have a large onboard LPG supply, while gasoline is often convenient in motorized RVs that can draw from the vehicle's fuel tank.

The generator must be installed and configured for the intended fuel according to Cummins requirements. Do not assume that an existing gasoline-only or propane-only installation can be converted without the correct fuel-system components and professional review.

Key Features

• Dual-fuel capability for gasoline or LPG propane vapor
• 7,000-watt output on gasoline
• 6,500-watt output on LPG propane
• 120/240V single-phase electrical output
• 60 Hz operation
• Advanced inverter generator technology
• Variable-speed engine operation
• Permanent-magnet alternator
• Electronic fuel injection
• Clean sine-wave electricity for sensitive electronics
• Lower noise and vibration than traditional fixed-speed designs
• Improved fuel efficiency under partial electrical loads
• J1939 communication interface
• Integration with compatible RV control interfaces
• Advanced onboard diagnostics
• Designed for permanent RV and mobile installation
• 50-state certified configuration
• More than 70 pounds lighter than the legacy model, according to Cummins
• Capable of powering two 15,000 BTU RV air conditioners, subject to total load
• Backed by Cummins RV generator support and service coverage

Gasoline and Propane Power Ratings

Actual available power may be affected by elevation, ambient temperature, fuel quality, installation, maintenance condition and the electrical characteristics of connected equipment.

Advanced Inverter Generator Technology

The Cummins Onan QG 7000i DF uses inverter technology rather than relying on a conventional fixed-speed alternator to produce usable AC power. The variable-speed engine can slow down when electrical demand is low and increase speed as demand rises.

This operating design provides several important advantages for RV owners:

• Reduced fuel consumption at lighter loads
• Lower operating noise
• Reduced vibration inside the coach
• Clean, consistent electrical output
• Improved performance for sensitive electronic equipment
• Less unnecessary engine speed when full power is not required

Clean Power for Sensitive RV Electronics

The QG 7000i DF produces clean sine-wave electricity intended to help protect modern RV electronics from unstable voltage and damaging power fluctuations.

This makes it suitable for powering equipment such as televisions, computers, control boards, battery chargers, converters, residential refrigerators, entertainment systems and other electronic devices commonly installed in modern motorhomes and towable RVs.

Power quality does not eliminate the need for proper wiring, grounding, transfer equipment and surge protection. The completed electrical installation must follow Cummins instructions and applicable electrical and RV standards.

Electronic Fuel Injection

Electronic fuel injection helps optimize fuel delivery across changing engine loads and operating conditions. Compared with older carbureted RV generator designs, EFI can provide easier starting, improved fuel efficiency, cleaner operation and reduced routine fuel-system maintenance.

The fuel system must still be maintained according to the operator's manual. Fuel quality, extended storage and improper installation can affect generator performance.

Low Noise and Vibration

The QG 7000i DF combines variable-speed operation, an enclosed design and vibration-control engineering to reduce the sound and physical vibration transmitted into the RV.

Because engine speed adjusts according to the connected load, the generator does not need to run at maximum engine speed whenever only a small amount of power is being used. This can make operation more comfortable during overnight stays, campground use and extended off-grid travel.

RV Control-System Integration

The integrated J1939 communication interface allows the generator to communicate with compatible RV control and monitoring systems. Depending on the RV manufacturer and installed equipment, generator information and controls may be available through the coach's main control interface.

Available functions depend on the RV's communication system, wiring and control hardware. Confirm compatibility with the RV manufacturer or qualified installer.

What Can the QG 7000i DF Power?

The QG 7000i DF can support many common RV loads, including:

• One or two 13,500 BTU rooftop air conditioners
• One or two 15,000 BTU rooftop air conditioners
• Residential or RV refrigerator
• Microwave or convection microwave
• Battery charger and converter
• Televisions and entertainment systems
• Interior and exterior lighting
• Water pump
• Electric coffee maker
• Hair dryer
• Computers, tablets and mobile devices
• Small kitchen appliances
• Additional onboard electrical equipment

The generator may not be able to operate every high-demand appliance at the same time. Air conditioners, electric water heaters, microwaves, induction appliances and other large loads should be managed according to the generator's available output.

Ideal Applications

• Class A motorhomes
• Large Class C motorhomes
• Fifth wheels
• Toy haulers
• Horse trailers with living quarters
• Luxury motor coaches
• Mobile offices
• Mobile medical units
• Mobile command vehicles
• Specialty commercial vehicles
• Extended RV travel
• Boondocking and off-grid camping
• Full-time RV living
• Replacement onboard generator installations

Why Choose a Permanently Installed RV Generator?

A permanently installed generator provides onboard electrical power without requiring the owner to unload a portable generator, carry extension cords or manually connect individual appliances.

When properly installed, the generator integrates with the RV's fuel, exhaust, starting and electrical systems. It can provide convenient power for air conditioning, battery charging, kitchen equipment, lighting and entertainment whenever shore power is unavailable.

An onboard generator may also be operated while traveling when the RV manufacturer and completed installation permit it, allowing passengers to use approved appliances and climate-control equipment on the road.

Replacement Generator Information

The Cummins Onan QG 7000i DF may be considered for new RV installations or as a replacement for a compatible onboard generator. However, it should not be assumed to be a direct drop-in replacement for every earlier QG 7000 model.

Before ordering, verify:

• Generator compartment dimensions
• Mounting points and support structure
• Airflow and cooling requirements
• Fuel type and fuel-system compatibility
• Gasoline or LPG propane-vapor connection requirements
• Exhaust outlet location and routing
• 120/240V electrical compatibility
• Transfer-switch or distribution-panel requirements
• Remote-start wiring
• J1939 communication compatibility
• Battery and starting-circuit requirements
• Service-access clearances

A qualified Cummins Onan installer or RV service professional should confirm compatibility before the existing generator is removed.

Technical Specifications

Exact dimensions, weight, fuel connections, supplied accessories and installation clearances should be confirmed from the current Cummins specification sheet and the order-specific documentation for A077T574 before modifying an RV generator compartment.

What Is Included

• Cummins Onan QG 7000i DF onboard RV generator
• Model 7HGLCA-8312
• Factory-enclosed generator assembly
• Integrated inverter and permanent-magnet alternator
• Integrated electric-start system
• Standard factory equipment associated with A077T574
• Cummins operator and installation documentation
• Applicable Cummins manufacturer's limited warranty

Items Not Included Unless Specifically Listed

• RV installation labor
• Gasoline fuel lines or LPG propane fuel-system components
• External LPG regulator or vaporizer components
• Starting battery
• Battery cables
• Remote-start switch or coach control panel
• Automatic generator-start module
• Transfer switch
• Electrical wiring and circuit protection
• Custom mounting brackets or compartment modifications
• External exhaust extensions or vehicle-specific exhaust hardware
• Freight unloading or installation services

Professional Installation Required

The Cummins Onan QG 7000i DF is intended for permanent installation in a properly engineered RV or mobile-equipment generator compartment. Installation should be completed by a qualified Cummins Onan dealer, RV technician or generator installer.

The installer must verify:

• Correct gasoline or LPG propane-vapor fuel configuration
• Fuel-line sizing and routing
• Propane regulator requirements
• Mounting strength and vibration isolation
• Cooling-air intake and discharge
• Exhaust routing and clearances
• Electrical wiring and grounding
• 120/240V load distribution
• Starting battery and cable sizing
• Remote controls and J1939 integration
• Compartment sealing
• Fire and carbon-monoxide safety
• Compliance with Cummins instructions and applicable RV standards

Improper generator installation can create fire, electrical-shock, exhaust, carbon-monoxide and equipment-damage hazards.

Freight Shipping and Delivery

This permanently installed RV generator may ship by truck freight. The customer must provide a location accessible to the carrier and suitable equipment or personnel to receive and unload the shipment.

Residential, limited-access, appointment, liftgate, storage, redelivery or reconsignment services may result in additional freight charges.

Inspect the generator and packaging before signing the delivery receipt. Any visible damage, missing components or packaging concerns must be clearly documented on the carrier's delivery receipt at the time of delivery.

Cummins RV Generator Warranty

Cummins states that Onan RV generators used in RV applications are generally covered for three years or 2,000 operating hours, whichever occurs first. RV generators used in non-RV applications may have different coverage. Extended warranty options may also be available. :contentReference[oaicite:4]{index=4}

Warranty coverage is subject to Cummins terms, exclusions, application requirements, registration and maintenance requirements. The warranty statement supplied with the generator controls if any information differs from this page.

Professional installation, proper fuel-system configuration, documented maintenance and the use of approved parts and fluids may be required to preserve warranty coverage.

Frequently Asked Questions

Is the Cummins Onan QG 7000i DF dual fuel?

Yes. Cummins identifies the 7HGLCA as a gasoline/LPG generator. It can be installed for a gasoline-fueled or LPG propane-vapor-fueled RV application.

What is the Cummins part number?

The manufacturer part number for this page is A077T574.

What is the generator model number?

The model is 7HGLCA-8312.

How much power does it produce on gasoline?

It is rated for up to 7,000 watts on gasoline.

How much power does it produce on propane?

It is rated for up to 6,500 watts on LPG propane vapor.

Does it run on natural gas?

No natural-gas rating is listed for this model. Its supported fuels are gasoline and LPG propane vapor.

Can I switch between gasoline and propane whenever I want?

The generator supports gasoline or LPG applications, but the fuel system must be configured correctly for the selected fuel. Confirm whether the delivered configuration and RV installation permit field switching before ordering or attempting to change fuels.

Is this the same as the older gasoline-only QG 7000?

No. The QG 7000i DF is a newer inverter-based dual-fuel design. The older QG 7000 gasoline model uses a different platform and should not be assumed to have the same dimensions, wiring or mounting arrangement.

Does the generator produce 120V or 120/240V power?

The 7HGLCA is listed by Cummins with 120/240V single-phase output.

Can it power two RV air conditioners?

Yes. Cummins states that the QG 7000i DF can power two 15,000 BTU air conditioners, subject to the remaining connected load and the starting characteristics of the air-conditioning systems.

Is this an inverter generator?

Yes. It uses inverter technology, a variable-speed engine and a permanent-magnet alternator.

Is the electricity safe for sensitive electronics?

The generator produces clean sine-wave electricity designed for modern RV electronics. Proper wiring, grounding and surge protection are still required.

Does it have electronic fuel injection?

Yes. Cummins lists electronic fuel injection as a standard feature of the QG 7000i DF.

Does it run at a constant engine speed?

No. It uses variable-speed operation and adjusts engine speed according to electrical demand, up to its rated operating range.

Is it quieter than the older QG 7000?

The variable-speed inverter design is intended to reduce noise and vibration, particularly when the electrical load is below maximum output.

Does it communicate with the RV control system?

It includes a J1939 interface and may integrate with compatible coach control systems. Actual functionality depends on the RV's wiring and control hardware.

Can it be used in a fifth wheel?

Yes, provided the fifth wheel has a properly designed generator compartment, compatible fuel system and suitable electrical installation.

Can it replace an older Onan QG 7000?

Possibly, but it should not be assumed to be a direct drop-in replacement. Mounting, dimensions, ventilation, exhaust, fuel connections, wiring and controls must be verified.

Can it be installed in a gasoline motorhome?

Yes. Cummins lists it for gasoline-fueled RV applications when installed with the correct fuel components.

Can it be installed in an LPG-equipped RV?

Yes. It can be installed for an LPG propane-vapor application using the correct fuel supply, regulator and installation components.

Does it include a starting battery?

A starting battery is not included unless specifically stated on the sales order.

Does it include a transfer switch?

No. A compatible transfer switch or RV electrical-distribution system must be provided separately unless included elsewhere in the vehicle.

Can the generator operate while the RV is moving?

Fixed-mount RV generators may generally be operated while traveling when the RV manufacturer and completed installation permit it. Follow the RV and generator operating instructions.

Is it 50-state certified?

Yes. Cummins lists the QG 7000i DF as a 50-state-certified model.

What warranty does it have?

Cummins generally lists three years or 2,000 hours of coverage for Onan generators used in RV applications, subject to the official warranty terms.

Does professional installation matter?

Yes. Correct installation is critical for fuel safety, cooling, exhaust routing, electrical protection, carbon-monoxide prevention and warranty compliance.

Important Ordering Information

Before purchasing, confirm:

• Cummins part number A077T574
• Model 7HGLCA-8312
• QG 7000i DF dual-fuel series
• Gasoline or LPG propane-vapor installation
• 7,000-watt gasoline rating
• 6,500-watt LPG rating
• 120/240V single-phase output
• Generator compartment dimensions
• Mounting and ventilation compatibility
• Exhaust routing
• Fuel-system components
• Electrical and control-system compatibility
• Current production lead time
• Factory-included accessories
• Freight and unloading requirements
• Cancellation and return restrictions

Manufacturer: Cummins Onan
Series: QG 7000i DF
Model: 7HGLCA-8312
Part Number: A077T574
Fuel: Gasoline or LPG propane vapor
Gasoline Rating: 7,000 watts
LPG Rating: 6,500 watts
Voltage: 120/240V
Phase: Single phase
Frequency: 60 Hz
Technology: Variable-speed inverter generator
Application: Permanently installed RV and mobile power

Specifications, availability and included factory equipment are subject to change. Product images may show optional equipment or representative installations. The Cummins order acknowledgment, current specification sheet and installation manual determine the exact equipment supplied and installation requirements.