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Cat INV4000E (Discontinued)

The Cat INV4000E is a quiet and compact inverter generator with a rated wattage of 3200 W and a starting wattage of 4000 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 summary, the Cat INV4000E is a quiet and compact portable inverter 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
  • Handcrafting enthusiasts who wish to work on-the-go
  • Homeowners in need of an emergency backup power for their essentials
  • 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 following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Cat INV4000E in use

The Cat INV4000E

The Cat INV4000E is powered by a 212 cc OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 3200W as well as a peak wattage of 4000W. Moreover, since it is parallel capable (parallel kit not included), its power may be increased if linked to a second compatible unit.

At a noise rating of 51 dBA (just slightly more noisy than a refrigerator), this inverter generator can be started via a conventional pull-start mechanism, or a simple and elegant electric starter (battery included).

With a fuel capacity of 2.1 gallons, the INV4000E may run for around 8 hours at 50% load with a full tank (fuel consumption around 0.26 GPH).

The INV4000E generates a clean sine wave: providing <3% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel provides the upcoming 3 AC outlets:

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

Additionally, it features 3 DC outlets: there's a 12V 8A receptacle allowing you to easily charge your batteries and two 5V USB ports with which charging of electronics like mobile phones and tablets is made convenient.

While this Cat generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with 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 featured design follows the latest trends and is ideal for easy and recreational use.

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.

A digital data center, one of the features of the INV4000E's control panel, gives you information on the remaining run time, power output, voltage, lifetime run hours and fuel level, and thus, is helpful for the monitoring of 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, the device’s light indicators will display if the generator is ready, the generator is on overload and its oil levels are insufficient.

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.

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.

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).

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Cat INV4000E also is packed along with the following accessories: battery charging cables, oil, battery charger, funnel and tool kit.

Emissions

The Cat INV4000E is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 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).

  • A weight of 103.6 lbs makes the Cat INV4000E one of the heavier inverters in the 2500-3500 rated wattage range. If weight matters to you, one of the champions in this power range is the Genmax GM3300i with only 47.4 pounds.
  • With a lowest noise rating of 51 dBA, the inverter generator is one of the more quiet of the generators of similar type and power. If you are concerned with noise, check out the Honda EU3000iS, which is one of the least noisy generators in its power range, with a noise rating of just 50 dBA.
  • As the INV4000E offers around 8 hours run time on a full tank at a 50% load, it falls within the average autonomy range among the inverter generators of a similar power. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Westinghouse iGen4200, as it provides around 15 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. With an estimated gasoline consumption of 0.26 GPH (gallon per hour) at 50% load, this inverter generator is among the more fuel efficient of the products in the above-mentioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Westinghouse iGen4200. With a fuel consumption of as little as 0.17 GPH, it is one of the most efficient generators currently on the market.

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 watts3200 W
Starting watts4000 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 outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 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 homeMicrowave (1000 watts)15001500
Refrigerator (energy star)1921192
Freezer8101750
Set of 5 LED light bulbs5555
Total2557 W3557 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Radiant heater13001300
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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