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 a nutshell, the Powerhorse 4000 is a compact portable generator mostly geared towards:
- RV travellers looking for even more independence
- Occasional participants of outdoor events, competitions, concerts and festivals
- DIYers who wish to improve their efficiency with tools
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.
Power & Run Time
The Powerhorse 4000's design includes a gasoline-fueled 212 cc OHV 4-stroke engine. With a 120/240V output, it gives a running wattage of 3,100W and also a peak wattage of 4,000W.
Enjoying a noise rating of 95 dBA (which is pretty noisy), this generator gets running thanks to a simple traditional 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 produces a clean sine wave: thanks to a <5% Total Harmonic Distortion (THD), your sensitive electronics can be safely plugged in the AC outlets.
The control panel features the following 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.
Due to the featured twist-lock L14-30R receptacle, the 4000 is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.
The design of the Powerhorse 4000 is a typical, open frame, with the dimensions of L25.4 x W18.8 x H19.8 in, offering support and stability and enabling the possibility of raising it above ground level. This type of design is ideal for tough environments and heavy outdoor use.
As the generator's weight is 115 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). 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, when the oil level is too low, you will be informed by the featured light indicator.
Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.
From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.
Accessory-wise, along with the previously mentioned features, the Powerhorse 4000 is packaged with the standard documentation and an owner's manual (opens in a new tab), helping you start the device right away.
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 and thus, may be used 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|
|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|
|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.
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||Sump pump (1/2 hp)||1050||2150|
|Furnace fan (1/2 hp)||875||2350|
|Refrigerator (energy star)||192||1192|
|Total||2467 W||3942 W|
|For camping||Radiant heater||1300||1300|
|Pair of small speakers||45||45|
|Total||2475 W||2895 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).