4 Quietest 4000 Watt Generators (& Bonus Option)

Discover the quietest 4000 watt generators so you can get a nice amount of power while keeping the noise levels down.

Quietest 4000 watt generators overview

For this list, I mainly stuck to generators between 4000 and 4400 peak watts as you would expect.

However, I also included a solid quiet bonus generator with 4500 peak watts that is often a great choice.

1. WEN 56400iX – Quietest 4000 watt generator (57 dBA)
2. Pulsar PGD40iSCO – Budget-friendly quiet 4000 watt generator (59 dB)
3. A-iPower SUA4300i (63 dBA, 4300 peak watts)
4. Champion 200954 (64 dBA, 4250 peak watts)
5. Bonus: Westinghouse iGen4500 (52 dBA, 4500 peak watts)

As you can expect, quiet 4000 watt generators lower on the list could still be the best for your preferences and needs.

Other details I looked at

The main details behind the list above are the decibel ratings and customer reviews mentioning noise levels of the 4000 to 4400 peak watt generators on the market.

However, to help you find the best 4000 watt generator for your situation, I also considered other specifications for the detailed reviews below.

Some of these other specifications include:

• Run time, fuel types, outlets, portability, etc.
• User reviews
• Anecdotal reviews from experts
• Price
• Brand trustability and reputation
• The performance categories below

If a pick seems interesting click it to see the online prices.

*Compared to similar generators and sometimes based on customer input

4 Quietest 4000 watt generators reviewed

Knowing what the quietest 4000 watt generators are can be useful but you likely still want the right model for your situation too.

The detailed reviews of all the options can help you find the right generator.

1. WEN 56400iX – Quietest 4000 watt generator

The WEN 56400iX is the quietest 4000 watt generator with noise levels of 57 dBA (typically measured at 25% load and 23 feet away).

In combination with the run time of 8.5 hours at 50% load, you could use the WEN 56400iX for things like running a refrigerator and/or freezer overnight.

Another benefit of the WEN 56400iX is that it has an electric start.

This makes getting the quiet 4000 watt generator going more convenient for elderly individuals or just people who don’t like the standard recoil start.

Something people with food trucks, mobile detailing operations, outdoor DJ sets, or other business purposes do want to keep in mind is the short commercial warranty.

Additionally, the WEN 56400iX does not have that many customers yet.

Customers tend to like WEN generators but there are also a few models that have unexpectedly high rates of technical issues.

With the reasonable price, low noise levels, and nice features, you could still give the WEN 56400iX a chance.

On the other hand, if you don’t mind going down a few watts, the WEN 56380i can be a more proven option.

2. Pulsar PGD40iSCO – Budget-friendly

The Pulsar PGD40iSCO is a few decibels louder at 59 dB but its relatively budget-friendly price and solid features could make this quiet 4000 watt generator the right one for you.

Something you do want to know first is that the 4.5-hour run time at 50% load is relatively short.

This is definitely not enough to run something like an RV air conditioning or similar medium devices throughout the night.

Additionally, there are a few cases of suboptimal performance like the Pulsar PGD40iSCO not reaching the listed power although these tend to be exceptions.

On the other hand, the light weight of the Pulsar PGD40iSCO positively stands out.

The 46 pounds should be relatively easy to take out of your car, camper, or storage room and get in and out of position.

You may also like the CO sensor which reduces the risk of too much carbon monoxide buildup around the generator.

Besides these things, the Pulsar PGD40iSCO is rather standard which is good for a budget-friendly yet quiet 4000 watt generator like this.

3. A-iPower SUA4300i

The A-iPower SUA4300i is a tiny amount louder than the previous option with a rating of 63 dBA.

However, considering a regular conversation is around 60 decibels, it is still fair to say the A-iPower SUA4300i offers a nice amount of power and relatively silent operation.

Something that positively stands out in this option is that there is also the A-iPower SUA4300iD which is basically the dual fuel version.

Being able to run on propane can be helpful for situations like power outages and off-grid living thanks to the better storability of this fuel type.

One downside of these options is that their run time of 7.5 hours at 50% load is relatively short compared to many of the quietest 4000 watt generators.

Additionally, the low number of customer reviews makes it so you are not entirely certain about whether this is one of the A-iPower generators with lacking reliability.

In practice, you will likely prefer the Pulsar PGD40iSCO if you have more than enough with a quiet 4000 watt generator that just runs on gasoline.

On the other hand, you will not find (m)any other dual fuel inverter generators around the power capacity and reasonable price of the A-iPower SUA4300iD.

4. Champion 200954 4250

As some customers note, the Champion 200954 4250 is not the quietest 4000+ watt generator but 64 dBA is still nice for this power capacity.

If you find the noise levels acceptable, the long run time of 22 hours at 25% load makes the Champion 200954 great for running an RV AC, refrigerator, or freezer overnight.

You could also go for the Champion 200977 which is basically the dual version instead.

This may be slightly pricier but could be worth the benefits of being able to run on propane.

If you do want to go for the gasoline-only Champion 200954, you need to know that there are a few cases where customers have technical issues.

Champion support tends to resolve these issues sooner or later but in case they happen, this would require some extra time and effort.

You also want to know that the Champion 200954 does not come with a wheel kit. This extra investment may be necessary if you don’t see yourself lifting the 79 pounds.

Overall the Champion 200954 does have the occasional technical issue and not the quietest noise levels but it is still a relatively reliable 4000+ watt generator.

In turn, this generator or to a larger extent the dual fuel version could still be the right investment for situations like backup power or off-grid living.

Bonus: Westinghouse iGen4500

The first thing to note is that the Westinghouse iGen4500 is not an actual 4000 peak watt generator.

However, because the 4500 peak watts are close, the noise levels of 52 dBA are low, and the generator is good, you do want to know that this option exists.

Before going into the benefits, the two main downsides of going for the Westinghouse iGen4500 instead of the quietest 4000 watt generators are the price and weight.

That being said, since the Westinghouse iGen4500 is still relatively good in these areas, its other good points could make it worth the investment.

For example, the long run time of 18 hours at 25% load makes it so you can enjoy the clean THD inverter power of the Westinghouse iGen4500 without too many refueling interruptions.

The electric start and optional remote start also make using this quiet 4500 watt generator relatively convenient.

With these, you don’t even have to leave your RV, camper, or house to start the power source for your AC, TV, refrigerator, or other devices.

Additionally, the overall positivity of the reviews and the small number of mentions of technical issues imply the Westinghouse iGen4500 is a reliable generator.

In short, if you have the budget for it and don’t mind rolling around the few extra pounds, the Westinghouse iGen4500 is likely worth the extra investment.

FAQ

What is the quietest 4000 watt generator?

The WEN 56400iX is the quietest 4000 peak watt generator with a noise level rating of 57 dBA (typically measure at 25% load and 23 feet away).

Additionally, if you don’t mind investing a bit more, Westinghouse iGen4500 is a quiet alternative (52 dBA) that offers 4500 peak watts and good reliability.