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Dewalt DXGNR4000 Spec Review

The Dewalt DXGNR4000 is a portable open frame generator with a rated wattage of 4000 W and a starting wattage of 5000 W.

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Description

The 4000 Watt Portable Gas Generator is powered by a 223cc engine with low oil shut off which protects the engine from damage. CO-Protect Technology automatically shuts down the generator if carbon monoxide levels become unsafe or rapidly increase. This generator is equipped with covered outlets to help protect it from even the toughest jobsites and features heavy duty wheels for transportation and durability. The 3.4 Gal. steel fuel tank provides up to 10 hours of runtime at 50% load. The 1 ¼” steel tube frame helps protect it from jobsite conditions. (source: Dewalt (opens in a new tab))

Zoom on the Dewalt DXGNR4000

In a nutshell, the Dewalt DXGNR4000 is a portable generator mostly geared towards:

  • RV travellers looking for even more independence
  • People occasionally participating in outdoor fairs, festivals or events
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals who want to be able to deliver results, even during a power failure

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 Dewalt DXGNR4000 houses a 223 cc OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 4000W along with a peak wattage of 5000W.

The generator features a conventional pull-start mechanism.

Thanks to a fuel capacity of 3.4 gallons, the DXGNR4000 can operate for around 10 hours at 50% load with a full tank (fuel consumption around 0.34 GPH).

Outlets

The control panel includes the following 5 AC outlets:

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

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

Portability

With its dimensions of L23.7 x W23 x H21.4 in, the conventional, open frame design of the Dewalt DXGNR4000 offers stability and allows the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor 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 119 lbs. Still, once it is on the ground, its wheel kit and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

Panel of the Dewalt DXGNR4000

The DXGNR4000's control panel

The control panel of the DXGNR4000 includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the lifetime run hours.

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

As for its security measures, the device features an automatic low oil shut-off and an overload protection (circuit breaker), letting you use it with a peace of mind.

The DXGNR4000 also benefits from Dewalt’s CO Protect carbon monoxide shutdown. If CO levels become unsafe or rapidly increase, the generator is automatically shut down. 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 Dewalt DXGNR4000 also is packed along with the following accessories: oil and funnel.

Emissions

The Dewalt DXGNR4000 is 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.

The Dewalt DXGNR4000 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Dewalt DXGNR4000 compare to generators of similar power (between 3500 and 4500 W).

  • As its weight is 119 pounds, the Dewalt DXGNR4000 falls in the expected weight range of the devices in the 3500-4500 rated wattage category. In terms of weight, one of the champions in their power range is the WEN GN400i, standing at just 66.1 lbs.
  • Regarding its autonomy, the autonomy of the DXGNR4000, reaching around 10 hours at a 50% load, can be considered as low end, compared to other products of a roughly equal output. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Predator 4375, with around 16 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. This generator has an estimated fuel consumption of roughly 0.34 GPH (gallon per hour) at a 50% load, rendering it somewhat average compared to devices of a similar output. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen4200, with a fuel consumption of 0.17 GPH could be in your good books.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Dewalt DXGNR4000 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • CO Protect technology
  • Several accessories included
  • GFCI Outlets
AVERAGE SPECS:
  • Decent weight (119 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No electric start
  • Relatively low run time

Do you own the Dewalt DXGNR4000 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine223 cc OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz
Running watts4000 W
Starting watts5000 W
Running amps33.3 amps
Peak amps41.7 amps
Run time @50% load10 h
Run time @25% loadUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
DC outletsNo
Data centerLifetime run hours
IndicatorsNo
Fuel tankSteel, 3.4 gal
Fuel gaugeYes
Misc
Weight119 lbs
Approx. dimensions (L x W x H)23.7 x 23 x 21.4 in
Noise (lower limit)Unknown
THDUnknown
EmissionsCARB
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, and wheel kit
Warranty3 years
Other model numbersPMC164000

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 Dewalt

DeWalt is a well renowned, US-based, tool and power equipment company, founded in 1922 by Raymon DeWalt. DeWalt is nowadays a subsidiary of the Stanley Black & Decker corporation, owns 7 manufacturing facilities in the US and offers a large selection of products, from screwdrivers to portable generators. DeWalt’s portable generator line consists of conventional, open designs of various outputs, some of which are powered by Honda engines. However, unlike many of their tools, they are apparently not all made in the US and are manufactured under license by Generac.

Warranty Information

The Dewalt DXGNR4000 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 Dewalt generators, please consult Dewalt's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-4-DEWALT (800-433-9258).

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 wattage calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Microwave (1000 watts)15001500
Refrigerator (energy star)1921192
Total3192 W4192 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Mixer200200
Total3190 W3780 W
For workTable saw18004500
Drain cleaner250250
Bug zapper8080
Total2130 W4830 W
What is the noise rating of the DXGNR4000?

Due to the lack of standardization in noise emission measurement, Dewalt does not provide their units' noise levels.

How do they not list the DBA in the specs- What is it? (Asked August 19, 2020)

As there is no industry standard for noise emission measurement, some manufacturers simply refuse to publish any noise rating.

What oil does the generator take? (Asked October 27, 2020)

SAE 10W-30 is recommended for general, all temperature use.

What gasoline is the best (Asked January 13, 2021)

Gasoline should be clean, fresh, and unleaded, with a minimum octane rating of 87.

How much oil does this take? (Asked February 01, 2021)

Engine oil capacity is 0.54 qt.

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