Model # DXPW3835

Internet #203185011

Store SKU #638463

Store SO SKU #638463

DEWALT Honda GX270 3,800 psi 3.5 GPM Gas Pressure Washer


Honda GX270 3,800 psi 3.5 GPM Gas Pressure Washer

  • Reliable high performance premium HONDA GX270 Engine
  • Maintenance free AAA Triplex Pump with PowerBoost Technology
  • Steel-Braided Quick Connect high pressure hose
$79900 /each
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Frequently Bought Together

Product Overview

These 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 AAA industrial triplex plunger pumps, a brand with a history of over 40-years of innovation. AAA pumps are equipped with PowerBoost, a patent pending technology that delivers higher pressure to the spray nozzle, resulting in greater impact and cleaning performance.

California residents: see   Proposition 65 information

  • HONDA GX270 OHV commercial series engine with oil alert - engine oil is included
  • AAA industrial triplex plunger pump with ceramic pistons and powerboost technology which provides higher pressure at the nozzle
  • 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
  • Secondary handle for protection and on-the-go operating instructions
  • Pro-style spray wand with 5 quick connect nozzle tips - 0 Degree , 15 Degree , 25 Degree , 40 Degree and soap applicator nozzle
  • Professional spray gun with side grip and safety lock-out
  • Convenient on-board accessory storage for spray gun/wand, high pressure hose and nozzles
  • Downstream detergent injection system for use of cleaners
  • Limited warranty - commercial use - 3-years on Honda GX engine, 5-years on AAA pump, 10-years on 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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Assembled Depth (in.)
38 in
Assembled Height (in.)
28.5 in
Assembled Width (in.)
22.5 in
Hose Diameter (In.)
3/8 in
Hose length (in.)
Wheel Diameter (in.)
13 in


Assembly Required
CA (CARB) Compliant
CARB Compliant
Connection Type
3/8 in. Quick Connect Hose & Trigger Handle
Engine Displacement (cc)
Engine Make
Engine Type
HONDA GX270 Commercial Series OHV Engine with Oil Alert
Chemical/detergent injection,Quick connect tips
Fuel Tank Capacity (gallons)
Hose Material
Onboard cord storage,Wheels
Maximum Pressure (PSI)
Nozzle Type
Number of tips included
PSI Range
3200+ PSI
Pressure Washer Power Type
Product Weight (lb.)
Pump Brand
Pump Type
Start Type
Recoil Start
Translucent fuel tank
Water capability

Warranty / Certifications

Manufacturer Warranty
Limited Warranty - Commercial Use - 3 Years on Honda GX engine, 5 Years on AAA pump, 10 Years on frame components, 90 Days on spray accessory items

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Customer Questions & Answers

What brand pump is on the unit?

What brand of pump is included with this washer? Spec section just says "other". Does this pump have ceramic plungers?
Asked by: Jerry61
It is a Model 10.0 GA13 made by AAA pumps, a Simpson company. It has ceramic pistons. This pressure washer performs spectacularly!! If you buy this pressure washer, you will get the best power-product engine Honda has ever made (IMHO – and I am a former power-products engineer at American Honda), but it comes with what may be the least-reliable pump ever made, so be ready to buy a spare pump. I have gone through 3 pumps in 9 months even tho I know how to care for pressure washers. Sadly, the average in-warranty repair time for this pump is 6-10 weeks from ANY repair center except Simpson’s, who gets replacements to their repair centers within a week. Since I need a pressure washer that actually works every day, I can’t wait 6-10 weeks for a repair, so I bought a spare pump and then helped Simpson set up an authorized repair station near me, as there was not one within 100 miles of Salt Lake City (October 2016). Replacement pumps installs in 10 minutes or less; just remove 4 bolts, pull the pump off, push the new one on, tighten the four bolts and send the broken pump to a Simpson (not DeWalt) service center. For out of warranty replacement parts, your best source is Simpson. Call 877-362-4271 to order them. I recommend Dave at extension 8270. He is very proactive and helpful. I have a more to say about the DeWalt 3800 so look for my review of the support that comes with this product, if Home Depot will post it. If you can't find my review, I will also post it on Google, under Home Depot and under the DeWalt 3800 Pressure Washer, and mention in those reviews that HD would not post my info. Again, when it is running, this pressure washer performs spectacularly! Be sure to add an inline water filter, available in the pressure washer section at Home Depot. Minor crud in the water will kill ANY pump. With Simpson’s support, this is a GREAT product.
Answered by: RogerListon
Date published: 2017-03-27

What is the minimum input GPM?

I plan on using this with a 100GL water tank. What type of input pressure is required? Does HD have a pump that they recommend for this? Thanks
Asked by: gerry
Same as the output 3.5 GPM. Water is not compressible. As to pressure, about 15 psi is sufficient.
Answered by: RogerListon
Date published: 2016-10-27

How will thiis unit perform while washing buses, will it take bugs off of the front grill?

Asked by: ere0165
This machine will take the paint off the bus along with the bugs. The pressure on this machine is equivalent to what is used in some car washes. I would not recommend using the yellow or red tip when cleaning if you are in close proximity.
Answered by: DOO
Date published: 2016-12-20

Can the pressure be varied on this washer, or is it fixed at 3800 PSI?

Asked by: washman
It is set at the factory, but you can lower it by slowing the engine down.
Answered by: RogerListon
Date published: 2016-10-26
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Customer Reviews

Honda GX270 3,800 psi 3.5 GPM Gas Pressure Washer is rated 3.9 out of 5 by 138.
Rated 5 out of 5 by from Easy to use by any measure, saves time with plenty of pressure. Superb performance at the best p... Easy to use by any measure, saves time with plenty of pressure. Superb performance at the best price!
Date published: 2017-04-28
Rated 4 out of 5 by from Easy to assemble , a bit pricey ,however You get what You pay for. Hose is not very flexible , Ho... Easy to assemble , a bit pricey ,however You get what You pay for. Hose is not very flexible , Honda engine started on 3rd pull after adding fuel and motor oil. Used it on My Can-Am Maverick , John Deere Tractor , Exmark Mower and a little on fence and deck .So far so good , fingers crossed !
Date published: 2017-04-07
Rated 5 out of 5 by from Good tool Good price, all you need to pressure wash any house or concrete. Enough power to run any attachment including surface cleaner
Date published: 2017-03-21
Rated 5 out of 5 by from WOW!!!!! This pressure washer is a beast!! Hands down to Dewalt once again!! Switched from a Troy 2800PSI 2.5GPM to this beast, make sure you know the basics about pressure washing... because if you don't keep the right distance it will make a hole in the concrete!! I haven't tried the Red/Yellow tips... the Green tip was powerful enough... to the point that the pressure made me lose balance couple of times!!! AMAZING MACHINE!!! HUGE Difference with the cheaper brands (obviously you get what you pay for)
Date published: 2017-06-03
Rated 5 out of 5 by from Excellent Machine Runs quiet. Started on first pull. Easy to operate. Did an exceptional job pressure washing vinyl siding and cleaning gutters. Completely removed heavy mold and moss stains from white siding. Glad I didn't go with the smaller unit. It took a lot to remove the worst of the stains and the longer hose was a must. A larger unit than this would likely have damaged the siding. Highly recommend this unit.
Date published: 2017-05-23
Rated 5 out of 5 by from Fantastic machine. It started up right away and is very powerful. I considered upgrading from t... Fantastic machine. It started up right away and is very powerful. I considered upgrading from this 3,800 PSI model to the 4,000 PSI model, but glad I saved the extra $200. This pressure washer is all I need for occasional use on a two story house. Any more power and it would be dangerous. This product is highly recommended.
Date published: 2017-05-23
Rated 5 out of 5 by from The DeWalt pressure washer was easy to assemble and even easier to get started once complete. The... The DeWalt pressure washer was easy to assemble and even easier to get started once complete. The unit has plenty of power and functions well on a tank of fuel. Capable of blasting away just about anything you aim it at, I recommend this unit for mid to heavy power washing needs.
Date published: 2017-06-20
Rated 5 out of 5 by from Borderline Ridiculous Granted I'm replacing an 1800 psi AR Blue Clean electric washer. I assumed that the PSI rating would be relative, so maybe twice as strong as the 1800. Nope, this thing is at least 5 times more powerful. For general home use maybe even too much, the 4200 psi would probably blow the roof off your house. The wand has some "kick" to it when you pull the trigger and the spray distance is enough to clean the neighbors house while you're at it. The 0 degree nozzle would allow you to write your name in the driveway if that's on your "to do list". Aside from its destructive potential the machine is well designed, the hose may not be the most expensive like other people state but it's long and does the job just fine. I bought the DeWalt 18" surface cleaner and can't wait to see how well it works in conjunction with this beastly pump. I can't see the need to ever own a stronger pressure washer than the 3800 for home use and could have gotten the next size smaller than this and been more than enough for 99 percent of applications. Only upgrade I might consider is some kind of quick release for the supply hose.
Date published: 2017-05-27
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