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)
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Description
Zoom on the DeWalt DH4240B
In summary, the DeWalt DH4240B is a commercial pressure washer, that offers an all-around versatile cleaning experience, and also:
- precise spot cleaning of hard, unpainted surfaces, reaching elevated areas, and effectively removing stubborn stains
- complete cleaning of hard surfaces, vehicle washing, and surface prep for painting
- mild cleaning for delicate surfaces, and low-pressure cleaning for broader areas
- applying detergents or chemicals, and rinsing surfaces afterward
The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.
Power
The DeWalt DH4240B
The DeWalt DH4240B's triplex pump, powered by a powerful 389cc (11.7 hp) engine, can provide a pressure of up to 4200 PSI (approximately 70 times more than a standard garden hose) and a flow of up to 4 GPM (CETA-certified values). Thus, the DeWalt DH4240B achieves a cleaning power of 16800 Cleaning Units.
To initiate the Honda GX390 engine of this gas-powered pressure washer, a traditional pull-start mechanism is employed.
Containing gasoline, the pressure washer's fuel tank can hold a maximum of 1.6 gallon.
Design & Handling
The DeWalt DH4240B's wheelbarrow-style design enhances both mobility and stability, enabling seamless navigation and consistent performance, even on rugged terrain. Built to endure, the welded steel frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The handle adds to the DH4240B convenience of transport.
Weighing in at 145 lbs, it's safe to say this unit isn't lightweight, which might pose difficulties for users when it comes to lifting and transporting, particularly over uneven surfaces. A key role in its final weight is played by its 389cc Honda GX390 engine, the triplex pump and welded steel frame. Nonetheless, the addition of two 13" pneumatic wheels simplifies maneuvering the DH4240B, even across rough ground.
Main Features
The DeWalt DH4240B
The DeWalt DH4240B comes with a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. When a soap nozzle is connected, the pressure washer takes the initiative to mix the detergent with the water flow automatically.
- Pressure hose: When not in use, the unit allows for tidy storage of the included 50 ft ⌀3/8" high-pressure hose (4500 PSI rating) using a set of convenient hooks, ensuring convenient organization.
- Spray gun and wand: Both the classic ergonomic spray gun and its wand may be conveniently stored in a side hook. The gun features a rotating auxiliary side handle to further improve the comfort of both left and right-handed users.
- Nozzles: Review the table below to learn about the 5 included nozzles and the surfaces they're recommended for.
0° | 15° | 25° | 40° | Soap | |
|---|---|---|---|---|---|
| Concrete, brick, masonry | |||||
| Siding, gutters, house | |||||
| Fencing, deck, patio | |||||
| Lawn equipment, boat, RV |
Important: The nozzle shapes shown above are for illustrative purposes and may vary. Symbols denote suitability, with a indicating 'Not recommended,' a for 'Suitable,' and an for '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 low oil protection and a thermal relief valve (which helps to prevent internal pump damage).
- Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the DeWalt DH4240B comes with oil, spray gun, pressure hose, soap hose, wand and nozzle cleaner.
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.
- With a maximum pressure of 4200 PSI, the DeWalt DH4240B ranks as one of the gas-powered products that attain the highest water pressure levels, within the $1450 to $1800 price range.
- With a water flow of up to 4 GPM, this washer is at the pinnacle of the above-mentioned price range, providing an exceptional volume of water.
- Featuring 16800 Cleaning Units (PSI X GPM), the DH4240B stands as one of the most efficient options in its respective price bracket.
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
- In the expected price range
- Triplex pump
- Honda engine
- Designed to be stable
- Good range of nozzles included
- Onboard storage
- Several security features
- High PSI for the price
- High GPM for the price
- High CU for the price
- No soap tank
Do you own the DeWalt DH4240B and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 389cc 11.7 HP Honda GX390 4-stroke OHV |
| Pump | AAA Triplex |
| Water | Cold (100°F max.) |
| PSI | 4200 |
| GPM | 4 |
| Cleaning Units | 16800 |
| Pressure control | Valve |
| Frame | Welded steel |
|---|---|
| Handling | Wheelbarrow |
| Wheels | 2 wheels, ⌀13", pneumatic |
| Weight | 145 lbs |
| Dimensions | Approx. 45 x 28 x 25.5 in (L x W x H) |
| Hose storage | Hooks |
| Soap injection | Via siphon hose |
|---|---|
| Nozzles | 0°, 15°, 25°, 40°, Soap |
| Quick connect nozzles | Yes |
| Onboard storage | Yes |
| Hose | 50 ft, ⌀3/8 |
| Security | Low oil, trigger lock and thermal relief valve |
|---|---|
| Emissions | EPA |
| Included accessories | Oil, nozzle cleaner, wand, spray gun, high pressure hose, soap hose, 5 nozzles |
| Warranty | 3 years |
| Other model numbers | 60446 |
| UPC | 636893402340 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
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).
