Cummins Onan 3600 Watt Propane RV Generator – A055E865 (3.6KYFA-26120)

Cummins Onan QG 3600 LP RV Generator | Model 3.6KYFA-26120 | Item A055E865 | 3.6kW | 120V | Propane Generator

The Cummins Onan QG 3600 LP RV Generator (Model 3.6KYFA-26120, Item A055E865) is a permanently installed propane generator engineered to provide dependable onboard power for motorhomes, travel trailers, fifth wheels, toy haulers, and truck campers. Delivering 3,600 watts of reliable 120-volt power, this compact RV generator is designed to keep your essential appliances, rooftop air conditioner, battery charger, lighting, microwave, and other electrical systems operating whether you're camping off-grid or traveling between destinations.

Operating exclusively on liquid propane (LP vapor), the QG 3600 LP connects directly to your RV's existing propane system, eliminating the need to carry gasoline while providing a cleaner-burning fuel source with outstanding long-term storage stability. Because propane does not deteriorate like gasoline during storage, it is an excellent fuel choice for both seasonal campers and full-time RV travelers who want dependable power whenever shore power is unavailable.

Built with the reliability that has made Cummins Onan the industry leader in onboard RV generators, the QG 3600 LP combines dependable electric starting, compact installation, quiet operation, and long service life. Whether you're replacing an older LP generator or installing dependable onboard power in a new RV, the Cummins Onan QG 3600 LP delivers years of reliable performance backed by one of the most trusted names in mobile power generation.

Key Features

• 3,600 watts (3.6kW) continuous power output
• 120V single-phase electrical output
• 60 Hz operation
• Operates exclusively on propane (LP vapor)
• Designed specifically for permanently installed RV applications
• Compact footprint for easier installation
• Quiet operation with enclosed sound-reducing housing
• Reliable electric starting system
• Stable electrical output for RV appliances and electronics
• Uses the RV's existing propane supply
• Excellent replacement for compatible Onan LP generators
• Built by Cummins Onan for dependable long-term performance

Technical Specifications

• Manufacturer: Cummins Onan
• Series: QG 3600 LP
• Item Number: A055E865
• Model Number: 3.6KYFA-26120
• Running Wattage: 3,600 Watts (3.6kW)
• Voltage: 120V
• Frequency: 60 Hz
• Phase: Single Phase
• Rated Current: 30 Amps
• Fuel Type: Propane (LP Vapor)
• Cooling System: Air Cooled
• Starting System: Electric Start
• Dimensions (L × W × H): 30.0" × 19.7" × 14.4" (762 × 500 × 366 mm)
• Dry Weight: 178 lbs (81 kg)

What Can the QG 3600 LP Power?

With 3,600 watts of dependable output, the Cummins Onan QG 3600 LP is capable of powering many of the essential systems found in today's recreational vehicles, including:

• One 13,500 BTU or 15,000 BTU rooftop RV air conditioner (application dependent)
• RV refrigerator
• Microwave oven
• Coffee maker
• Battery charger and converter
• Television and entertainment systems
• Interior and exterior LED lighting
• Water pump
• Laptop computers and mobile devices
• Medical equipment
• Small kitchen appliances
• Additional everyday RV electrical loads

Ideal Applications

• Class A motorhomes
• Class C motorhomes
• Travel trailers
• Fifth wheels
• Toy haulers
• Truck campers
• Horse trailers with living quarters
• Weekend camping trips
• Boondocking and off-grid camping
• National park travel
• Replacement generator installations
• Seasonal RV travel

Why Choose the Cummins Onan QG 3600 LP?

The Cummins Onan QG 3600 LP is engineered for RV owners who want dependable onboard electricity while taking advantage of the convenience of propane fuel. Because it connects directly to the RV's propane system, there is no need to transport separate gasoline containers or worry about gasoline degrading during storage.

Its compact size allows installation in many recreational vehicles while delivering enough power for essential appliances and comfort systems. Combined with dependable starting, durable construction, and quiet operation, the QG 3600 LP provides years of reliable service whether you're camping in remote locations or traveling across the country.

Trusted by RV manufacturers and owners throughout North America, the Cummins Onan QG 3600 LP continues to be one of the industry's most popular permanently installed propane generators.

Why Choose a Propane RV Generator?

Propane generators offer clean-burning operation, excellent long-term fuel storage, and convenient integration with existing RV propane systems. Since propane is already used by many RVs for cooking, heating, refrigeration, and water heating, adding a propane generator allows multiple onboard systems to operate from a single fuel source while eliminating many of the maintenance concerns associated with gasoline storage.

Replacement Generator Information

The Cummins Onan QG 3600 LP (Model 3.6KYFA-26120, Item A055E865) is commonly selected as a replacement generator for compatible propane-powered RVs originally equipped with a Cummins Onan LP generator. Before replacing an existing generator, verify mounting dimensions, propane connections, exhaust routing, electrical requirements, and overall application compatibility to ensure proper fit and operation.

What's Included

• Cummins Onan QG 3600 LP RV Generator
• Model 3.6KYFA-26120
• Item Number A055E865
• Installation documentation
• Operator's manual
• Cummins manufacturer's limited warranty

Frequently Asked Questions

What fuel does the QG 3600 LP use?

The Cummins Onan QG 3600 LP operates exclusively on propane (LP vapor).

Can it connect to my RV's existing propane tanks?

Yes. In most installations, the generator connects directly to the RV's existing propane supply. Always verify installation requirements before installation.

Can the QG 3600 LP run an RV air conditioner?

Yes. In many RV applications, the generator can operate one rooftop air conditioner while also powering additional electrical loads depending on startup requirements and total power demand.

Does propane last longer in storage than gasoline?

Yes. Propane remains stable for long periods without degrading, making it an excellent fuel choice for seasonal RV owners and travelers.

Can this generator power sensitive electronics?

Yes. The generator provides stable electrical output suitable for televisions, battery chargers, computers, medical devices, and many other electronic appliances when properly installed.

Is this a good replacement for an older Onan LP generator?

Yes. The QG 3600 LP is commonly selected as a replacement for compatible Cummins Onan propane-powered generators. Always verify compatibility before ordering.

Is professional installation recommended?

Yes. Professional installation is recommended to ensure proper propane connections, ventilation, exhaust routing, electrical integration, and safe operation.

Who is this generator best suited for?

The Cummins Onan QG 3600 LP is ideal for owners of motorhomes, travel trailers, fifth wheels, toy haulers, truck campers, and other RVs seeking dependable permanently installed propane power.

Why choose Cummins Onan?

Cummins Onan has been the leading name in onboard RV generators for decades and is recognized throughout the industry for dependable performance, durable construction, and long-term reliability.

What makes the QG 3600 LP a popular choice?

Its combination of dependable 3.6kW output, compact size, propane operation, proven reliability, and compatibility with many RV propane systems makes it one of the most trusted permanently installed propane generators available today.