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This product was discontinued. For your convenience, we decided to leave this page up.
It was replaced by the Powerhorse 4500. However, you might still find it second hand on eBay, by clicking on the button below.
Zoom on the Powerhorse 4000
In summary, the Powerhorse 4000 is a compact portable generator especially useful for:
- RV travellers looking for even more independence
- Occasional participants of outdoor events, competitions, concerts and festivals
- Handcrafting enthusiasts who wish to work on-the-go
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.
Power & Run Time
The Powerhorse 4000 houses a 212 cc OHV 4-stroke engine, which provides 120/240V, consumes gasoline and delivers a running wattage of 3,100W along with a peak wattage of 4,000W.
The generator is rated for a noise of 95 dBA (which is pretty noisy). Its starting mechanism is based on a conventional pull-start mechanism.
Thanks to a fuel capacity of 3.9 gallons, the 4000 can operate for around 10.6 hours at 50% load with a full tank (fuel consumption around 0.37 GPH).
The 4000 generates a clean sine wave: providing <5% Total Harmonic Distortion (THD), delicate electronics can be plugged in its AC outlets safely.
The control panel provides the upcoming 9 AC outlets:
It also sports 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle with which you may charge your batteries with ease.
Since the 4000 bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.
The dimensions of the Powerhorse 4000, which are L25.4 x W18.8 x H19.8 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.
Although this generator is technically considered 'portable' (in the sense that it can be moved), its 115 lbs make it incredibly difficult to manually lift and transport. Nevertheless, thanks to its wheel kit and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.
To help you monitor the 4000's status and activity, its control panel is equipped with a convenient voltmeter, which provides an easy way to monitor power output anytime.
In addition to this info, a light indicator allows you to instantly see if its oil levels are insufficient.
The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.
Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.
Besides the features previously mentioned, accessory-wise, the Powerhorse 4000 comes with the usual documentation and owner's manual (opens in a new tab) needed to get you promptly started.
The Powerhorse 4000 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.
However, it features a spark arrestor, which makes it suitable for use in forested areas.
The Powerhorse 4000 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Powerhorse 4000 compare to generators of similar power (between 2500 and 3500 W).
- Since the generator weighs in at a dry weight of 115 lbs, the Powerhorse 4000 belongs in the expected weight range for devices which can produce between 2500 and 3500 rated watts. If weight is your top priority, one of the champions in this power category is the Pulsar PGD40iSCO, weighing just 46 pounds.
- As this generator has its lowest possible noise of 95 dBA, it should be considered noisier compared to its peers of a comparable running wattage. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU3000iS, whose lowest noise levels reach just 50 dBA.
- Offering around 10.6 hours of running time on a full tank at 50% load, the 4000 is within the average autonomy range of similarly powerful generators. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Predator 4375, as it provides around 16 hours.
- Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This generator is not fuel efficient compared to devices of similar output: its estimated fuel consumption stands at 0.37 GPH at a 50% load. If fuel consumption is your top priority, we suggest to check out the Pulsar PGD40iSCO, which has a fuel consumption of only 0.22 GPH and thus, is one of the most efficient devices in our database.
The bottom line
- Clean sine wave
- Decent weight (115 lbs)
- Decent run time
- No electric start
- Not CARB-compliant
- On the noisy side (95 dBA)
- Low fuel efficiency
Features and Specifications
|Engine||212 cc OHV 4-stroke|
|Voltage||AC: 120/240V 60 Hz, DC: 12V|
|Running watts||3,100 W|
|Starting watts||4,000 W|
|Running amps (@120/240V)||25.8/12.9 amps|
|Peak amps (@120/240V)||33.3/16.7 amps|
|Run time @50% load||10.6 h|
|Run time @25% load||Unknown|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|DC outlets||1x 12V 8A (cigarette lighter style)|
|Fuel tank||Steel, 3.9 gal|
|Approx. dimensions (L x W x H)||25.4 x 18.8 x 19.8 in|
|Noise (lower limit)||95 dBA|
|Security||Low oil and overload protection|
|Neutral||Bonded to frame|
|Accessories included||Wheel kit|
|Country of origin||China|
|Other model numbers||750138|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
Powerhorse is a trademarked brand name of gas-powered outdoor products owned and distributed by the Northern Tool & Equipment Company Inc. through their store locations and online. Powerhorse outdoor products include gas- and electric-powered tools including pressure washers, wood chippers/shredders, log splitters, electric generators and inverters. The product line also offers engines and water pumps. The brand's motto is "Power You Can Depend On". Powerhorse generators are engineered, developed and tested in Minnesota, but manufactured in China or Vietnam.
The Powerhorse 4000 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Powerhorse generators, please contact the Powerhorse Customer Support: 1-866-443-2576.
Questions & Answers
What can it power?
|Item||Running Watts||Starting Watts|
|At home||Microwave (1000 watts)||1500||1500|
|Refrigerator (energy star)||192||1192|
|Cell phone charger||20||20|
|Total||2462 W||3462 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Total||2470 W||3060 W|
|Halogen work light||1000||1000|
|Total||2400 W||3500 W|
How many hours to run before changing oil (Asked October 11, 2020)
Oil change schedule is detailed page 40 of the owner's manual (opens in a new tab).
I have one of these and never had any problem! Which is a good thing. But if it was 2-4 degrees I’m not to sure I would care unless ALL POWER WAS OUT EVERYWHERE!!
Swap out the 13.6 breakers for 20 amp breakers and it run anything.
During a recent arctic blast the temperatures dropped to 2°- 4° F. Grid power went out. I could not get my 4000 to start. I even brought it indoors (50°F and falling) to warm it up…53 hours later, the power came back. The generator was useless. It had a total of 4.5 hours run time and meticulously maintained.