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Cat INV4000E (Discontinued)

The Cat INV4000E is a quiet and compact inverter generator with a rated wattage of 3,200 W and a starting wattage of 4,000 W.

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Cat INV4000ECat INV4000ECat INV4000E

This product was discontinued. For your convenience, we decided to leave this page up.
If you were looking to purchase it, you may want to have a look at the WEN 56400iX, which has similar specs.
You can also try to find it second hand on eBay, by clicking on the button below.

Description

Take your outdoor adventures to the next level with the Cat® INV4000 E portable inverter generator. Inverter technology provides a high-quality power that's safe for your sensitive electronics. Cat® CO DEFENSE™Carbon Monoxide Sensing & Shutdown technology keeps you, your family, and friends safe.

Zoom on the Cat INV4000E

In a nutshell, the Cat INV4000E is a quiet and compact portable inverter generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor 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
  • Camping and tailgating buffs looking to enhance their experience
  • Professionals who want to ensure that a power failure will not prevent them from working

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 Cat INV4000E in use

The Cat INV4000E

The Cat INV4000E's engine, 212 cc OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 3,200W and reaches a peak wattage of 4,000W. In addition, as it is parallel capable (parallel kit not included), this power can be increased when linked to another similar or compatible unit.

The inverter generator is rated for a noise of 51 dBA (just slightly more noisy than a refrigerator). Its starting mechanisms include a simple traditional pull-start mechanism and a simple and elegant electric starter (battery included).

The INV4000E can operate for around 8 hours at 50% load with a full tank (fuel consumption around 0.26 GPH), due to its fuel capacity of 2.1 gallons.

Delicate electronics can be plugged in an AC outlets safely, as the INV4000E generates a clean sine wave, reaching a <3% Total Harmonic Distortion (THD).

Outlets

The control panel includes the following 3 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle

Furthermore, it has 3 DC outlets: there's a 12V 8A receptacle with which you may charge your batteries with ease and two 5V USB ports allowing you to conveniently charge electronics such as mobile phones and tablets.

Even though this Cat generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor.

Portability

As the Cat INV4000E is an inverter generator, its encased design (L25.4 x W18.5 x H20.4 in) offers more aesthetics than a conventional, open frame product. The design follows the contemporary trends and is perfect for recreationally generating power.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 103.6 lbs. Nevertheless, thanks to its set of 2 wheels 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 Cat INV4000E

The INV4000E's control panel

On the top of the unit, a handy compartment allows for an easy and convenient onboard storage of maintenance-related tools.

One of the many INV4000E's features is the data center, included in its control panel, which conveniently provides information on the lifetime run hours, power output, voltage, remaining run time and fuel level and thus, helps you monitor its activity and status. To offer you even more control and easy operation during nighttime, the panel is LED-lit.

In addition to this info, some light indicators allow you to instantly see if the generator is overloaded, the generator is ready and the oil level is too low.

The inverter generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

From a security point of view, the generator is equipped with an automatic low oil shut-off and an overload protection (circuit breaker), giving you a peace of mind during use.

The INV4000E also benefits from CAT’s CO DEFENSE™ carbon monoxide shutdown. This system monitors the accumulation of CO gas while the generator is running and will shut off the engine if the levels become dangerously high. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Cat INV4000E, the following accessories are also included: funnel, battery charger, tool kit, battery charging cables and oil.

Emissions

The Cat INV4000E is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.

Product Videos

The Cat INV4000E versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Cat INV4000E compare to inverter generators of similar power (between 2500 and 3500 W).

  • At a dry weight of 103.6 pounds, the Cat INV4000E is one of the heavier inverters which can produce between 2500 and 3500 running watts. If weight matters to you, one of the champions in this power range is the Pulsar PGD40iSCO with only 46 pounds.
  • With a lowest possible noise of 51 dBA, this inverter generator places itself amongst the more quiet of the products delivering similar power. For those who are looking for a less noisy device, we suggest the Honda EU3000iS. With just 50 dBA, it is one of the most quiet devices in this power range.
  • The INV4000E, falls within the average autonomy range compared to inverter generators of a roughly same power, with a run time of around 8 hours at a 50% load and a full tank. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Ryobi RYi4022X, as it provides around 12 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This inverter generator can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.26 GPH (gallon per hour) at 50% load, within the aforementioned wattage range. If you wish to further improve in the area of fuel efficiency, the Pulsar PGD40iSCO, which boasts with a gas consumption of only 0.22 GPH, may be the right generator for you.

The bottom line

STRENGTHS:
  • Onboard storage for maintenance tools
  • Illuminated control panel
  • CO DEFENSE™ technology
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Parallel capable
  • Inverter
  • Quiet for its power (51 dBA)
  • Fuel efficient
AVERAGE SPECS:
  • Decent run time
WEAKNESSES:
  • No remote start
  • On the heavy side (103.6 lbs)

Do you own the Cat INV4000E and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableYes, cable not included
RV readyNo
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil, Electric
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts3,200 W
Starting watts4,000 W
Running amps26.7 amps
Peak amps33.3 amps
Run time @50% load8 h
Run time @25% loadUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x 120V 30A (L5-30R)
DC outlets1x 12V 8A receptacle
2x 5V USB port
Data centerPower output, fuel level, lifetime run hours, remaining run time and voltage
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 2.1 gal
Fuel gaugeYes
Misc
Weight103.6 lbs
Approx. dimensions (L x W x H)25.4 x 18.5 x 20.4 in
Noise (lower limit)51 dBA
THD< 3%
ComplianceCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, battery charger, battery charging cables, and battery
Warranty3 years
Other model numbers501-5454
UPC815683026373

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.

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About Cat

Caterpillar Inc., often abbreviated as simply CAT, is an American engineering corporation, whose product range includes machinery, engines, financial products, mobile phones and of course, power generators. The company, founded in 1925, is one of the backbones of the US Dow Jones index and is placed among the Fortune 500 list. While CAT mainly focuses on industrial scale generators, it also provides a wide range of portable and household-scaled devices. CAT portable generators are engineered and designed in Mossville, Illinois, and Belfast, Northern Ireland. However, their production is outsourced to China.

Warranty Information

The Cat INV4000E 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 Cat generators, please consult Cat's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-PWR-ME-UP (844-797-6387).

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 sizing calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Blender400850
Game console150150
Total2542 W3542 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Set of 5 LED light bulbs5555
Total2545 W3135 W
For workGrinder14002500
Belt sander11502400
Total2550 W3800 W
What does relatively low run time mean in the negative column? (Asked May 02, 2020)

It refers to its comparison with other generators of similar power. When compared to other generators of similar power, this unit has a relatively low run time.

How does this generator compare with Cat 4000inv E CO, in terms of durability and specs? (Asked June 23, 2020)

This model is the INV4000E with CO DEFENSE.

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