WE ARE PROUD TO BE INDEPENDENT AND IN NO WAY ASSOCIATED WITH MANUFACTURERS. TO STAY UNBIASED, WE DO NOT ACCEPT FREE PRODUCTS. WE EARN FROM ADVERTISING FEES PAID BY RETAILERS ON QUALIFYING PURCHASES.

DeWalt DH4240B - 4200 PSI 4 GPM Gas Pressure Washer With Honda Engine

The DeWalt DH4240B is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 4 GPM. (Read full specs)

Compare ShortlistShortlistedRemoved from shortlist 1
DeWalt DH4240B 4200PSI Gas Pressure WasherDeWalt DH4240B 4200PSI Gas Pressure WasherDeWalt DH4240B 4200PSI Gas Pressure WasherDeWalt DH4240B 4200PSI Gas Pressure Washer
Set Price Alert
×
Notify me when the price drops
Set an alert for the DeWalt DH4240B - Current lowest price: $1,699.99
Price History
×
Price history for the DeWalt DH4240B
Latest updates:
  • $1,699.99 - March 16, 2024
  • $1,749.00 - January 29, 2024
  • $1,486.65 - January 27, 2024
  • $1,749.00 - November 27, 2023
Data source: ebay.com
Since: November 27, 2023
  • Highest Price: $1,749.00 - November 27, 2023
  • Lowest Price: $1,486.65 - January 27, 2024

Features and Specifications

FuelGas-Powered
HandlingWheelbarrow
WaterCold (100°F max.)
PSI4200
GPM4
Cleaning Units16800
Engine389cc 11.7 HP Honda GX390 4-stroke OHV
PumpAAA Triplex
Other model numbers60446
FrameWelded steel
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft, ⌀3/8
Hose storageHooks
Dimensions
(L x W x H)
Approx. 45 x 28 x 25.5 in
Weight145 lbs
Pressure controlValve
Wheels2 wheels, ⌀13", pneumatic
Included accessoriesOil, nozzle cleaner, wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityLow oil, trigger lock and thermal relief valve
EmissionsEPA
Warranty3 years
UPC636893402340

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×

This form does not send us any personal data (not even your IP address)

Description

Zoom on the DeWalt DH4240B

The DeWalt DH4240B, a heavy duty, commercial pressure washer, gives its user an all-around versatile cleaning experience, topped off by the following features:

  • spot cleaning of hard, paint-free surfaces and out-of-reach areas
  • thorough cleaning of hard, paint-free surfaces
  • cleaning of painted or delicate surfaces
  • application of detergent and cleaning solutions

Ahead are presented its power characteristics and design, its main features and any other additional features.

Power

The DeWalt DH4240B in use

The DeWalt DH4240B

Using a powerful 389cc (11.7 hp) engine, its triplex pump delivers a pressure of up to 4200 PSI (roughly 70 times more than a standard garden hose) and a flow of up to 4 GPM (CETA-certified values). Together, the values result in a cleaning power of 16800 Cleaning Units.

The Honda GX390 engine of this gas-powered pressure washer gets started by a classic pull-start mechanism.

Gasoline storage is facilitated by a fuel tank with a maximum capacity of 1.6 gallon.

Design & Handling

The wheelbarrow design of the DeWalt DH4240B grants mobility and stability to the unit. The robust welded steel frame guarantees longevity of the assembly. The handle adds to the DH4240B convenience of transport.

The unit's weight of 145 lbs renders its carrying and transportation challenging, as it is far from lightweight. A key role in its final weight is played by its 389cc Honda GX390 engine, the triplex pump and welded steel frame. However, the unit is mobile thanks to its two 13" pneumatic wheels, which add to its movability and allow it to be manipulated smoothly on the job.

Main Features

The DeWalt DH4240B in use

The DeWalt DH4240B

The DeWalt DH4240B's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.

  • Soap injection: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. The detergent will be added automatically to the water when a soap nozzle is attached.
  • Pressure hose: A neat storage for the included 50 ft ⌀3/8" high-pressure hose (4500 PSI rating) is facilitated by a set of convenient hooks.
  • Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its wand. The gun features a rotating auxiliary side handle to further improve the comfort of both left and right-handed users.
  • Nozzles: The 5 nozzles included with the device, and the respective surfaces which they’re the most suitable for, are shown in the following table.


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionUse with cautionSuitable

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

  • Onboard storage: With the DeWalt DH4240B's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation), a thermal relief valve (which helps to prevent internal pump damage) and a low oil protection.
  • Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the DeWalt DH4240B comes with pressure hose, oil, spray gun, nozzle cleaner, soap hose and wand.
  • Emissions: The DeWalt DH4240B is EPA approved, but NOT CARB-compliant and so you cannot buy it nor sell it in California.

The DeWalt DH4240B's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the DeWalt DH4240B compare to similarly priced pressure washers.

  • Reaching a 4200 PSI max pressure output, the DeWalt DH4240B has an expected pressure value, compared to the other gas-powered units in the $1400 to $1800 price range. If your priority is the highest possible power of the water stream, in this price range, we suggest checking out the Lifan LFQ4515E-Elite, which reaches up to 4500 PSI.
  • With a maximum GPM of 4 (gallons per minute), this washer belongs to the best in terms of water flow, in its respective price range.
  • With a rather impressive value of 16800 Cleaning Units (PSI X GPM), the DH4240B has a higher cleaning efficiency compared to similarly priced devices. If you consider the highest overall cleaning power as a really important factor, the Lifan LFQ4515E-Elite and its 18000 Cleaning Units has one of the highest cleaning efficiency of all the similarly priced units.

Price comparison

As you can see from these interactive charts, when compared to other gas-powered washers between 16500 and 17000 Cleaning Units, the DeWalt DH4240B is on the average side of the price range.

Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.

The bottom line

STRENGTHS:
  • In the expected price range
  • Triplex pump
  • Honda engine
  • Designed to be stable
  • Good range of nozzles included
  • Onboard storage
  • Several security features
  • High GPM for the price
  • High CU for the price
AVERAGE SPECS:
  • Decent PSI for the price
WEAKNESSES:
  • No soap tank
  • Not CARB-compliant

Do you own the DeWalt DH4240B and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About DeWalt

With the invention of the first radial arm saw in 1922 by Raymond DeWalt, the company has since grown into one of the top names in power tools in the industry. Acquired by Black & Decker in 1960, the DeWALT brand has become a favorite of contractors, particularly in North America. It boasts seven manufacturing facilities in the U.S. Though known mainly for professional-grade corded-electric and battery-powered hand tools, the company has also begun to offer some outdoor power equipment as well, such as leaf blowers and string trimmers. DeWalt gas-powered washers are manufactured by FNA, and electric washers are manufactured by Stanley Black & Decker.

Warranty Information

The DeWalt DH4240B is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of DeWalt pressure washers, 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).

We would love to know your opinion

Leave a review

Your total score

Pressure Washer Database
Logo
Compare items
  • Total (0)
Compare

You can compare as many pressure washers as you wish. However, for the best results, we recommend you to compare only 2 products at a time.

0