We researched and compared the top generators for fifth wheel RVs using manufacturer specifications, published industry and safety standards, and aggregated owner feedback. Our evaluation focuses on power output, noise levels, fuel efficiency, portability, and reliability for both boondocking and backup use. Each pick is assessed for its ability to handle the high electrical demands of typical fifth wheel appliances and air conditioners.
| Photo | Product | Score | Buy |
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Honda EU7000iS Best Overall 7000W surge, 5500W continuous, 49 dBA at quarter load, 8.1 gal tank, 196 lb |
9.4 | 🛒 Check Price |
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Westinghouse iGen4500DF Best Dual Fuel 4500W surge, 3700W continuous, 52 dBA, dual fuel (gas/propane), 3.4 gal tank, 94 lb |
8.7 | 🛒 Check Price |
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Champion 100519 Best Budget 4500W surge, 3500W continuous, 61 dBA, 4.0 gal tank, 105 lb |
8.4 | 🛒 Check Price |
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Generac GP5500 Best for Heavy Loads 6875W surge, 5500W continuous, 69 dBA, 7.5 gal tank, 140 lb |
8.1 | 🛒 Check Price |
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Yamaha EF3000iSEB Best Compact 3000W surge, 2800W continuous, 51 dBA, 2.9 gal tank, 115 lb |
7.8 | 🛒 Check Price |
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WEN 56475 Best Lightweight 4750W surge, 3750W continuous, 67 dBA, 4.0 gal tank, 105 lb |
7.3 | 🛒 Check Price |
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DuroMax XP5500EH Best Dual Fuel Heavy Duty 5500W surge, 5000W continuous, 69 dBA, dual fuel (gas/propane), 8.0 gal tank, 130 lb |
7.8 | 🛒 Check Price |
1. Honda EU7000iS: Best Overall
The Honda EU7000iS is our top pick for fifth wheel generators, combining exceptional power output with whisper-quiet operation. In our evaluation, its inverter technology delivers stable, clean power essential for sensitive electronics like TVs and laptops. Owner feedback consistently praises its reliability and fuel efficiency, with the Eco-Throttle system extending runtime significantly. The unit is also parallel-capable, allowing you to pair two units for larger loads.
However, the EU7000iS is one of the most expensive generators on the market, which may be prohibitive for budget-conscious buyers. Additionally, at 196 pounds, it is not easily portable without a dolly or lift. If you need a lighter, more affordable option for occasional use, consider the Champion 100519 instead.
- Inverter technology provides clean power for sensitive electronics
- Eco-Throttle adjusts engine speed for fuel efficiency up to 14 hours at 25% load
- Parallel capable for doubling output with a second unit
Pros: Extremely quiet operation; Excellent build quality and longevity
Cons: High initial investment
2. Westinghouse iGen4500DF: Best Dual Fuel
The Westinghouse iGen4500DF stands out for its dual fuel capability, allowing you to run on gasoline or propane for extended trips. Based on owner feedback, the remote start feature is highly appreciated for convenience. Its 4500 surge watts are sufficient for most fifth wheel needs, including a single 15,000 BTU air conditioner. The unit is relatively lightweight at 94 pounds, making it easier to move than heavier models.
However, the iGen4500DF may struggle with two air conditioners or high-demand appliances simultaneously. On propane, the output drops to about 4050 surge watts, which limits its capacity further. If you need more power for a larger fifth wheel, the Honda EU7000iS is a better choice.
- Dual fuel capability for flexibility in fuel choice
- Remote start with key fob for convenience
- RV-ready outlet (TT-30R) and multiple receptacles
Pros: Lightweight and portable at 94 lb; Good value for dual fuel performance
Cons: Lower output may not run two ACs simultaneously; Propane reduces max power output
3. Champion 100519: Best Budget
The Champion 100519 is our budget-friendly pick, offering solid performance for fifth wheel owners who don’t want to overspend. We researched owner reviews and found it consistently starts on the first pull and powers a single AC and basic appliances without issue. Its cold start technology is a plus for winter camping. The parallel kit (sold separately) allows you to combine two units for more power.
However, at 61 dBA, it is noticeably louder than inverter generators like the Honda or Westinghouse. It also lacks the fuel efficiency of premium models, with a runtime of about 10 hours at 50% load. If noise is a concern or you plan extended boondocking, consider the iGen4500DF instead.
- Very affordable without sacrificing essential features
- Cold start technology ensures reliable starting in cold weather
- Includes RV-ready outlet and parallel capability
Pros: Excellent value for the price; Reliable performance for basic fifth wheel needs
Cons: Noisier than inverter models; Not as fuel-efficient as premium options
4. Generac GP5500: Best for Heavy Loads
The Generac GP5500 is designed for fifth wheel owners who need raw power for heavy loads like two air conditioners or a well pump. In our evaluation, its 6875 surge watts handle startup surges reliably. The large fuel tank extends runtime, reducing refueling frequency. Owner feedback notes its robust construction and consistent performance in demanding conditions.
However, the GP5500 is one of the loudest generators in our guide, which may disturb campground neighbors. It also lacks the clean power of inverter models, so it is not ideal for sensitive electronics without a surge protector. If you prioritize quiet operation and clean power, the Honda EU7000iS is a better fit.
- High surge capacity for starting large AC units or multiple appliances
- Large fuel tank provides up to 10 hours runtime at 50% load
- Steel frame with Never-Float design for stability
Pros: Powerful enough for most fifth wheel demands; Durable construction
Cons: Very loud (69 dBA) compared to inverter models; Heavy and not easily portable
5. Yamaha EF3000iSEB: Best Compact
The Yamaha EF3000iSEB is a compact inverter generator that excels in portability and quiet operation. We researched owner feedback and found it ideal for small to midsize fifth wheels where space is limited. Its Boost Technology provides extra surge power for starting AC units. The unit is parallel capable, allowing you to combine with another Yamaha for more power if needed.
However, with only 3000 surge watts, it cannot run two air conditioners or high-wattage appliances simultaneously. It is also priced higher than competitors with similar output. If you need more power for a larger fifth wheel, the Westinghouse iGen4500DF offers a better value.
- Compact and lightweight for easy storage and transport
- Inverter technology with Boost Technology for extra starting power
- Parallel capable for increased output
Pros: Very quiet operation; Reliable Yamaha engine
Cons: Limited power output (cannot run two ACs); Higher price for its power class
6. WEN 56475: Best Lightweight
The WEN 56475 is a lightweight conventional generator that offers decent power for its weight. We compared its specs and found it suitable for fifth wheel owners who need a portable option for occasional use. It features a fuel gauge and low oil shutoff, which are helpful for maintenance. Owner feedback indicates it runs a single AC and basic appliances without issue.
However, the WEN 56475 is louder than inverter generators and may not be as durable over time. Some owners report issues with the carburetor after extended storage. If you plan to use your generator frequently, investing in a higher-quality model like the Honda EU7000iS is advisable.
- Lightweight at 105 lb for its power class
- Includes RV-ready outlet and parallel capability
- Fuel gauge and low oil shutoff for safety
Pros: Good power-to-weight ratio; Affordable price point
Cons: Noisier than inverter models; Build quality not as robust as premium brands
7. DuroMax XP5500EH: Best Dual Fuel Heavy Duty
The DuroMax XP5500EH is a heavy-duty dual fuel generator that provides ample power for large fifth wheels. We evaluated its specs and found it capable of running multiple AC units and appliances on either gasoline or propane. The large 8-gallon tank offers long runtime, reducing refueling frequency. Owner feedback highlights its robust performance and fuel flexibility.
However, the XP5500EH is loud at 69 dBA and heavy at 130 pounds, making it less portable than smaller models. It also lacks inverter technology, so power quality may not be ideal for sensitive electronics. If you need a quieter, cleaner power source, consider the Westinghouse iGen4500DF instead.
- Dual fuel operation with a large fuel tank for extended runtime
- Heavy-duty steel frame with fold-down handles for easier movement
- Includes RV-ready outlet and multiple receptacles
Pros: High power output with fuel flexibility; Good value for dual fuel capability
Cons: Loud operation; Heavy and bulky for transport
Frequently Asked Questions
What size generator do I need for a fifth wheel?
The size depends on your power requirements. Most fifth wheels need at least 3000-4000 surge watts to run a single 15,000 BTU air conditioner and basic appliances. For two ACs or a washer/dryer, look for 5500-7000 surge watts. We recommend calculating your total starting wattage and adding 20% margin.
Can I use a portable generator with my fifth wheel?
Yes, portable generators are commonly used with fifth wheels. Ensure your generator has an RV-ready outlet (TT-30R for 30 amp or 14-50R for 50 amp service). Use a proper transfer switch or heavy-duty extension cord to connect safely.
Is an inverter generator better for a fifth wheel?
Inverter generators are generally better because they produce clean, stable power for sensitive electronics like TVs and laptops. They are also quieter and more fuel-efficient. However, they are more expensive. For basic needs, a conventional generator can work, but we recommend inverter models for modern fifth wheels.
How do I safely connect a generator to my fifth wheel?
Always use a transfer switch or interlock kit to prevent backfeeding. Connect the generator to the RV inlet with a heavy-duty cord rated for the amperage. Never run the generator in an enclosed space, and keep it at least 20 feet from the RV to avoid carbon monoxide buildup.
What is the best dual fuel generator for a fifth wheel?
Based on our evaluation, the Westinghouse iGen4500DF is the best dual fuel option for most fifth wheel owners. It offers a good balance of power, portability, and quiet operation. For heavier loads, the DuroMax XP5500EH provides more power but is louder and heavier.
Our Verdict
Our top pick is the Honda EU7000iS for its exceptional power, quiet operation, and reliability, making it ideal for most fifth wheel setups. The runner up is the Westinghouse iGen4500DF, which offers great dual fuel flexibility and portability at a more accessible price. Choose based on your power needs and budget.
