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Powerhorse 4000 (Discontinued)

The Powerhorse 4000 is a compact open frame generator with a rated wattage of 3,100 W and a starting wattage of 4,000 W.

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Powerhorse 4000Powerhorse 4000Powerhorse 4000Powerhorse 4000

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.

Description

This Powerhorse Portable Generator provides clean, reliable electricity with less than 5% total harmonic distortion. 100% copper-wound generator head allows continuous operation without overheating. Features automatic voltage regulator with voltmeter and low oil shutdown.

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 in use

The Powerhorse 4000

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.

Outlets

The control panel provides the upcoming 9 AC outlets:

Four Duplexes 120V 20A (5-20R)
120/240V 30A (L14-30R) receptacle

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.

Portability

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.

Features

Panel of the Powerhorse 4000

The 4000's control panel

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.

Emissions

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.

Product Videos

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

STRENGTHS:
  • Clean sine wave
AVERAGE SPECS:
  • Decent weight (115 lbs)
  • Decent run time
WEAKNESSES:
  • No electric start
  • Not CARB-compliant
  • On the noisy side (95 dBA)
  • Low fuel efficiency

Do you own the Powerhorse 4000 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil
Warranty2 years
Power
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts3,100 W
Starting watts4,000 W
Running amps (@120/240V)25.8/12.9 amps
Peak amps (@120/240V)33.3/16.7 amps
Run time @50% load10.6 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets
  • 4x Duplex 120V 20A (5-20R)
  • 1x 120/240V 30A (L14-30R)
DC outlets1x 12V 8A (cigarette lighter style)
Data centerVoltmeter
IndicatorsLow oil
Fuel tankSteel, 3.9 gal
Fuel gaugeYes
Misc
Weight115 lbs
Approx. dimensions (L x W x H)25.4 x 18.8 x 19.8 in
Noise (lower limit)95 dBA
THD< 5%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedWheel kit
Country of originChina
Other model numbers750138

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.

Spec Improvement×

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About Powerhorse

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.

Warranty Information

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?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
Refrigerator (energy star)1921192
Waffle iron750750
Cell phone charger2020
Total2462 W3462 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Toaster oven800800
Blender400850
Bug zapper8080
Total2470 W3060 W
For workGrinder14002500
Halogen work light10001000
Total2400 W3500 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).

Powerhorse 4000
7.1 Total Score
3 reviews
Add your review
Price
7
Value
6.7
Quality
7.7
Performance
7

User Reviews

Most Recent Most Helpful Highest Rating Lowest Rating Add your review
  1. 4.5
    Price
    90
    Value
    80
    Quality
    90
    Performance
    100

    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!!

    + PROS:
    • Easy to start. Large gas tank.
    - CONS:
    • Well let me see, wish it got longer run time on a full tank.really not much to bitch about. So far
    Helpful(0) Unhelpful(0)You have already voted this
  2. 2.4
    Price
    50
    Value
    60
    Quality
    60
    Performance
    20

    Swap out the 13.6 breakers for 20 amp breakers and it run anything.

    + PROS:
    • Large gas tank.
    • Fairly decent on fuel consumption.
    - CONS:
    • 13.6 amp 120 outlets.
    Helpful(1) Unhelpful(0)You have already voted this
  3. 3.75
    Price
    70
    Value
    60
    Quality
    80
    Performance
    90

    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.

    + PROS:
    • Lots of plugs,easy to use.
    - CONS:
    • Extremly sensitive to cold temperatures. It wont start in sub freezing temperatures.
    Helpful(2) Unhelpful(2)You have already voted this

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