Model # DXPW4240

Internet #203185026

Store SKU #933063

Store SO SKU #933063

DEWALT Honda GX390 4,200 PSI 4 GPM Gas Pressure Washer
0636893403064

DEWALT

Honda GX390 4,200 PSI 4 GPM Gas Pressure Washer

  • Reliable high performance premium HONDA GX390 Engine
  • Maintenance free AAA Triplex Pump made by Comet
  • Steel-Braided Quick Connect high pressure hose
$999.00 /each

Frequently Bought Together

Product Overview

DEWALT machines are guaranteed tough. Built tough to meet the rigorous demands of the cleaning professional or anyone who expects the most out their machine. Perfect for deck cleaning, wood restoration, paint preparation, graffiti removal and all other professional cleaning services. Our gas-powered machines are equipped with Honda GX OHV commercial series engines. These engines set the standard for durability and long life. The Honda engines are paired with AAAindustrial triplex plunger pumps, a brand with a history of over 40-years of innovation. AAATM pumps are equipped with PowerBoost, this patented technology delivers higher pressure to the spray nozzle, resulting in greater impact and cleaning performance. Exceptionally strong welded steel frame body and pneumatic tires for mobility across most any surface. Pro-style quick connect spray wands and nozzles, with professional spray gun, allows users to operate with ease. High pressure hoses are non-marring, kink and abrasion resistant and utilizes poly and/or steel-braid technologies for exceptional strength and long-life. For those extra dirty jobs, drop the detergent siphoning tube into pressure washer safe detergent and attach the soap applicator nozzle.

California residents: see   Proposition 65 information

  • Honda GX390 OHV commercial series engine with oil alert starts easy, runs smoothly and delivers high output - engine oil is included
  • AAA by comet industrial triplex plunger pump with ceramic coated pistons and adjustable unloaded for controlled pressure
  • 3/8 in. x 50 ft. high pressure steel-braided hose is non-marring, kink and abrasion resistant and equipped with quick connectors
  • Welded steel frame, steel engine plate, solid steel axle and 13 in. pneumatic tires for extreme durability and effortless maneuverability
  • Pro-style spray wand with 5 quick connect nozzle tips - 0°, 15°,25°,40°and soap applicator nozzle
  • Professional spray gun with side grip designed to be comfortable and easy to operate - safety lock to prevent gun from being accidentally activated
  • Convenient on-board accessory storage for spray gun/wand, high pressure hose and nozzles
  • Downstream detergent injection system for convenient use of cleaners
  • Limited warranty, commercial use 3-years on Honda GX engine, 5-years on AAA pump, 10-year frame components, 90 days on spray accessory items
  • Note: product may vary by store
  • Choose the best nozzle that fits your pressure washer needs:

    Pressure Washer Nozzle Selection Guide

Info & Guides

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$799.00 /each
$999.00 /each
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Name Honda GX270 3,800 psi 3.5 GPM Gas Pressure Washer Honda GX390 4,200 PSI 4 GPM Gas Pressure Washer Honda GX390 4,200 PSI 4 GPM Belt Drive Gas Pressure Washer Honda GX390 4200-PSI 4.1-GPM Terrex Annovi Reverberi Triplex Pump Gas Pressure Washer
Brand DEWALT DEWALT DEWALT Powerplay
Ratings (118) (101) (24) (3)
Maximum Pressure (PSI) 3800 4200 4200 4200.000
Pressure Washer Power Type Gas Gas Gas Gas
Commercial Yes Yes Yes Yes
GPM 3.5 4 4 4.1
Included Onboard cord storage,Wheels Onboard cord storage,Wheels Onboard cord storage,Wheels Wheels
Refurbished No No No
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Customer Questions & Answers

Will the unit come with oil?

When purchasing new in box, will the unit already have oil in the engine and some fuel in tank? Also, does it come with the detergent siphoning tube?
Asked by: Damian
Yes, all Dewalt preessure washers come with a container of oil. They also come with a chemical siphon tube and filter.
Answered by: DJH1916
Date published: 2017-03-20

My Dewalt DXPW4200 PSI pressure washer only puts out 3200 psi

The adjustment knob is turn all the way down and it puts out only 3200 PSI. I can't find out how to turn it up. I paid for a 4000 psi washer not a 3000 psi washer need help. When I first used the Dewalt DXPW4200 it seam low on PSI. I ordered a inline gauge to check the pressure to see if I was right and I was.
Asked by: JKR
I took the pressure reading from the pump outlet. I also took a read at the gun.it was the same.
Answered by: JKR
Date published: 2016-12-17

ARE YOU ABLE TO HOOK UP ADDITIONAL HOSES TO IT SO TWO PEOPLE CAN WORK AT ONCE?

ARE YOU ABLE TO HOOK UP ADDITIONAL HOSES TO IT SO TWO PEOPLE CAN WORK AT ONCE?
Asked by: Zak
I believe so,, if one could make the plumbing manifold to divide the output in 2 -- Although you'll probably see a pressure and water volume drop -- Point is,,, one person will move twice as fast as two lower volumes and psi flows,,, and 2 people at reduced volume will move twice as slow than one,,, -- So what's your point in doing this
Answered by: GANU
Date published: 2017-04-18

What is the assembled weight of this unit?

What is the assembled weight of this unit?
Asked by: Tony
The manual for my DeWalt DXPW4240 (4,200 psi/4 GPM with a Honda GX390 engine) pressure washer on page #3 indicates 140 lbs. Perhaps the 150 lb spec was the shipping weight? It came with a very large extra thick cardboard box that seemed like it could have been 10 lbs.
Answered by: John
Date published: 2017-03-31
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Customer Reviews

Honda GX390 4,200 PSI 4 GPM Gas Pressure Washer is rated 4.4 out of 5 by 98.
Rated 5 out of 5 by from After using the Dewalt 4200 psi power washer for a few months now. It been working flawless. I us... After using the Dewalt 4200 psi power washer for a few months now. It been working flawless. I used it cleaning my tractors , concrete, metal roof on carport and cleaning out clog drains with a jetter. Just use the right tip for the job and you are good to go.
Date published: 2016-11-11
Rated 5 out of 5 by from Dewat pressure washer This pressure washer is good machine and working perfect
Date published: 2016-11-02
Rated 5 out of 5 by from Great washer Washer has plenty of cleaning power. Easy to roll on uneven surfaces​. Large fuel capacity. Fueled it up and added the oil,it started on the 3rd pull . It died out when I squeezed the wand.I restarted it and let it warm up and has worked and started great since. The only wish I would have is an easier to use hose. The hose is stiff and hard to roll but I guess that's part of having a 4200psi washer.
Date published: 2017-03-21
Rated 5 out of 5 by from Great set up easy use and pump parts are easy... Great set up easy use and pump parts are easy to find and replace. Have bought 4 of these units and they are all still running. You can use the Honda engine with a triplex pump with a pulley system. Unfortunately the shaft driven pump parts wear out from a commercial industrial use stand point.
Date published: 2017-03-14
Rated 5 out of 5 by from Performs well as it should. This is premium priced... Performs well as it should. This is premium priced pressure washer. Have tried cheaper less powerful washers. It's worth the money to have one that satisfy most any requirement.
Date published: 2017-03-07
Rated 1 out of 5 by from Buyer beware! The Honda engine is perfect. The pump is the problem. I have owned this machine for 3 years I'm on the forth pump. AAA pumps are cheap! If you use this once a year you might get 5 years. Don't waste your money. Buy a washer with a Cat pump. If not just flush your $1000 down the toilet. You have been warned.
Date published: 2017-03-03
Rated 5 out of 5 by from very powerful.I had to turn down the pressure some because I thought it would damage my truck..gr... very powerful.I had to turn down the pressure some because I thought it would damage my truck..great engin..no problems yet...but i've only owned a month.
Date published: 2017-03-07
Rated 1 out of 5 by from I would not recommend this product. I use it to pressure wash driveways for my business. I have... I would not recommend this product. I use it to pressure wash driveways for my business. I have not even had it for 60 days and the pressure regulator isn't working correctly and the little connector that you use for soap actually blew off of the pump. This unit doesn't even compare to the old Dewalt 3750 psi, 4gpm unit.
Date published: 2016-11-26
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