Honda EM5000SX - 4500/5000W Portable Generator With Remote Start
The Honda EM5000SX is a portable open frame generator with a rated wattage of 4,500 W and a starting wattage of 5,000 W. (Read full specs)
Amazon 
Northern Tool 
Acme Tools 
The Home Depot 
Zoro 
Tractor Supply Price history for the Honda EM5000SX
Page Content
Description
Zoom on the Honda EM5000SX
In summary, the Honda EM5000SX is a portable generator especially useful for:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- People occasionally participating in sporting competitions, open-air performances and outdoor festivals
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Professionals in need of safely powering high-intensity work or lighting equipment
In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.
Power & Run Time
The Honda EM5000SX
Honda EM5000SX runs on gasoline, powered by a 389 cc Honda iGX390 OHV 4-stroke engine with cast iron sleeve, delivering 120/240V, boasting a running wattage of 4,500W alongside a starting wattage of 5,000W (and even up to 7,000 W thanks to the iAVR technology).
At a noise rating of 63 dBA (just slightly more noisy than a normal conversation), this generator provides the choice between a conventional pull-start mechanism or a no-fuss and convenient electric starter (battery included) for starting. For additional convenience, the EM5000SX may also be remotely started (via the My Generator App).
With a fuel capacity of 6.2 gallons, the EM5000SX may run for around 10.5 hours at 50% load with a full tank (fuel consumption around 0.59 GPH).
Due to the relatively high THD (<10%) of the EM5000SX, it is advised against using it for powering sensitive electronic devices.
Outlets
The control panel is equipped with the following 6 AC outlets:
Additionally, it features 1 DC outlet: there's a 12V 8A output providing easy battery charging capabilities.
This Honda generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor. Besides, equipped with a twist-lock L14-30R receptacle, the EM5000SX is engineered to be transfer switch ready, enabling simple hookup to your breaker box to provide backup power for your home during blackouts.
Portability
With its L41.1 x W27.8 x H28.3 in dimensions, the open frame structure of the Honda EM5000SX provides stability, simplified maintenance access to components, and better air cooling than enclosed units. This type of design is ideal for tough environments and heavy outdoor use.
Despite its 226.4 lbs, the generator falls under the category of 'portable,' signifying its movability, although its weight may hinder easy portability. Despite the restricted maneuverability, its wheel kit and its folding handle provides a solution, allowing for convenient shifting once the generator is positioned on the ground.
Features
The EM5000SX's control panel
The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
In terms of security, the generator features an automatic low oil shut-off (Oil Alert®) and an overload protection (circuit breaker), ensuring peace of mind during its use.
Accessory-wise, along with the previously mentioned features, the Honda EM5000SX is packaged with the standard documentation and an owner's manual (opens in a new tab), helping you start the device right away. An official storage cover is available, as a separate purchase.
CO Minder
CO Minder monitors the ambient CO concentration
Honda's CO Minder is a system that monitors the ambient carbon monoxide concentration, and automatically stops the engine if the sensor detects a CO level of or exceeding 800 parts per million (ppm) at a given time, or an average of 400 ppm for 10 minutes.
A CO alarm indicator will flash for about five minutes, during which it will be impossible to restart the engine.
Honda My Generator App
Honda My Generator helps you monitor your unit
The Honda My Generator App (available on iOS and Android) makes owning the EM5000SX even more flexible and convenient, whether you are depending on it at home during a power outage, or enjoying an adventure at a remote campsite.
The app connects your unit and your phone via Bluetooth, across a 75-foot line of sight, giving you valuable information about your generator's operation and many additional features in the palm of your hands.
With it, you can easily monitor a range of information such as output power, lifetime run hours, oil life, or estimated remaining runtime. You’ll also receive warnings and notifications to remind you of routine maintenance.
Even better, the app allows you to control multiple, compatible Honda generators from a single mobile device, and to remotely start and stop the EM5000SX without a key fob.
iAVR Technology
Honda’s iAVR (opens in a new tab) (Intelligent Automatic Voltage Regulation) reduces voltage fluctuation by up to 50% over current AVR systems.
In conventional generators, when a load is applied, the engine’s rpm drops, which causes the voltage and frequency to drop as well, until the rpm recovers.
iAVR is a combination of the DAVR (opens in a new tab) technology and the iGX (opens in a new tab) engine technology, which serves to provide advanced and instantaneous engine rpm control when a load is applied.
As a result, voltage and frequency are precisely regulated and the EM5000SX is able to produce a starting wattage above the maximum rating, for up to 10 seconds. Therefore, thanks to iAVR, the EM5000SX is able to “overclock” itself above its 5000 starting watts and provide up to 7000 W.
Product Videos
The Honda EM5000SX versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Honda EM5000SX compare to generators of similar power (between 4000 and 5000 W).
- Weighing in at 226.4 lbs, the Honda EM5000SX is one of the heavier generators available in the 4000-5000 rated wattage segment. In terms of weight, one of the champions in their power range is the Pulsar PGX5250BiXCO, standing at just 64 lbs.
- At just 63 dBA rated noise level, this generator is positioned as one of the quieter choices among devices delivering similar power. If you wish to prioritize minimal noise, the Yamaha EF4500iSE stands out as one of the quietest options among generators of similar power, with a rating of 58 dBA.
- The EM5000SX provides around 10.5 hours of runtime at a 50% load on a full tank, placing it within the average autonomy range among similar generators. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the NorthStar c5500, reaching around 15.1 hours.
- While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. Compared to similar devices, this generator is less fuel-efficient than most: it burns around 0.59 gallons of gasoline per hour at a 50% load. If you wish to further improve in the area of fuel efficiency, the WEN DF480iX, which boasts with a gas consumption of only 0.27 GPH, may be the right generator for you.
Here's a list of the most popular specific comparisons:
Price comparison
As you can see from these interactive charts, when compared to other 4000-5000W generators, the Honda EM5000SX is on the expensive side of the price range.
While certainly not the cheapest of its kind, purchasing it would most likely also mean enjoying the reliability of a high-end product.
The bottom line
- GFCI Outlets
- Remote start
- CO Minder
- Mobile app
- iAVR technology pushes starting watts up to 7,000
- Quiet for its power (63 dBA)
- Decent run time
- On the expensive side
- On the heavy side (226.4 lbs)
- Low fuel efficiency
Do you own the Honda EM5000SX and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Inverter | No |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 389 cc Honda iGX390 OHV 4-stroke, cast iron sleeve |
| Starting system | Recoil, Electric, Remote |
| Warranty | 3 years |
| Voltage | AC: 120/240V 60 Hz, DC: 12V |
|---|---|
| Running watts | 4,500 W |
| Starting watts | 5,000 W |
| Running amps (@120/240V) | 37.5/18.8 amps |
| Peak amps (@120/240V) | 41.7/20.8 amps |
| Run time @50% load | 10.5 h |
| Run time @25% load | Unknown |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | iAVR |
| AC outlets |
|
| DC outlets | 1x 12V 8A output |
| Data center | My Generator App |
| Indicators | No |
| Fuel tank | 6.2 gal |
| Fuel gauge | Yes |
| Weight | 226.4 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 41.1 x 27.8 x 28.3 in |
| Noise (lower limit) | 63 dBA |
| THD | < 10% |
| Compliance | EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Battery and wheel kit |
| Country of origin | China |
| Series | Deluxe |
| Other model numbers | EM5000SXK3AN |
| UPC | 786102010054 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About Honda
Founded in 1948, the Japanese Honda Motor Company has gained notoriety for consistently producing top quality engines, motor-powered vehicles and devices. Over the years, the company has gained a strong reputation in the motorcycle, automobile, but also power tool industry. Honda’s power tool division has been producing power tools since 1953, including tillers, mowers, blowers, sprayers and of course, power generators. While the company has expanded globally and moved a majority of its production out of Japan into other Asian countries, Honda is to this day known as a legend among the generator manufacturers.
Warranty Information
The Honda EM5000SX is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Honda generators, please consult Honda's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-770-497-6400.
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Microwave (1000 watts) | 1500 | 1500 |
| Dish washer | 1500 | 3000 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Slow cooker | 270 | 270 | |
| Total | 3462 W | 4962 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Coffee maker | 600 | 600 | |
| Total | 3590 W | 4180 W | |
| For work | Table saw | 1800 | 4500 |
| Drain cleaner | 250 | 250 | |
| Bug zapper | 80 | 80 | |
| Total | 2130 W | 4830 W |
What is the difference between the EM5000S, the EM5000SX and the EM5000SXK3AN?
These model numbers refer to the same unit, but simply include more or less information regarding its specs, production batch, etc. Read how Honda name their generators.
Did the Honda EM5000 are inverter? Silent? (Asked July 01, 2020)
The Honda EM5000 is not an inverter generator. It is rated at 63 dB(A).
what battery is used to start the generator (Asked October 18, 2025)
Battery is 12V 11.2 Ah (10HR). Exact part number may depend on the unit's serial number. You may choose your serial number in this list (opens in a new tab) to have access to all its matching parts.
Couldn't find the right answer for you? Ask your own question.
User Reviews
I have a EB5000X that I bought new in the 80’s. It still starts on the first pull and runs flawlessly. No flickering of leds or TV. Also no issue with computers.
Had this generator 4 years. Usually lose power about 3-5 hours once a month, winter time I usually lose power at least once for multiple days. Have a 1300sq.ft home, electric hot water, oven, and stove top, and water well. Never had an issue with output. Clean power. With it hooked up, its almost as if the power never went out. All my lights are LED, so that helps. I am mindful of what’s running at the same time. When taking a shower, you’ll hear the furnace fan and pellet stove fan have a little bit of drone to it until the hot water tank and well kick off, just too much demand. You can use a burner/oven/coffee pot/microwave (not all at the same time) and there is zero drone. If you’re mindful of what your doing and not running everything that’s high output at the same time, it’s a great machine, and it’s fantastic on gas usage. With it had a display or simple meter for wattage output. Fuel gauge is simple and easy to read, oil change is a breeze.