Model#: DEWN60577

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
Open Box
New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DXPW4240 4,200 PSI 4 GPM Gas Pressure Washer

  • Dewalt DXPW4240 4,200 PSI 4 GPM Gas Pressure Washer
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The DEWALT DXPW4240 is designed for professionals who need a powerful, yet compact cleaning machine for deck, patio and driveway cleaning, wood restoration, paint preparation, graffiti removal and all other outdoor cleaning demands. Equipped with a Honda GX390 Commercial Series OHV engine, this unit is built with high-quality components that are engineered for optimum performance in the harshest environments.
  • Honda GX390 Commercial Series OHV Engine for reliable start up and power
  • Oil Alert System turns off engine when oil level is low, helping to prevent damage
  • AAA Industrial Triplex Pump features PowerBoost Technology that provides higher pressure at the nozzle, resulting in greater impact and cleaning performance
  • Robust, welded construction frame design features tubular, heavy gauge steel, engine plate and solid steel axle for durability
  • 50 ft. x 3/8 in. steel-braided high pressure hose with Quick Connectors for convenience
  • Quick Connect spray nozzles, 4 stainless steel high pressure tips and a brass low pressure soap tip for versatility
  • Ergonomic, professional spray gun with side grip is designed for comfort and control
  • 13 in. premium 4-ply pneumatic tires with steel rims for mobility
  • DXPW4240 4,200 PSI 4 GPM Gas Pressure Washer - 60577
  • Spray Gun
  • 50 ft. x 3/8 in. Hose
  • (5) Nozzles
  • Soap Hose
Compliance and Restrictions
warning: Cancer and Reproductive Harm --


Length: 38 in.
Width: 24 in.
Height: 28 in.
Weight: 140 lbs.
Built-in Detergent Tank: Yes
CARB Compliant: Yes
Chemical Injection Method: Detergent Tank
Engine Displacement: 389cc
Engine Type: GX390 OHV
Frame Type: 2-Wheel Cart
Horsepower: 11.7
Hose Connection: Quick Connect
Hose Diameter: 3/8 in
Hose Length: 50 ft
Hose Material: Polyurethane
Max. Water Flow Rate (GPM): 4
Max. Water Pressure (PSI): 4200
Motor Type: Brushed
Nozzle Type: Quick-Change
Nozzles Included: Yes
Power Source: Gas
Pump Type: Triplex Plunger
Spray Gun Connection: Quick Connect
Starter Type: Recoil
Water Temperature: Cold
Wheel Size: 13 in
Wheel Type: Pneumatic



4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (2)
Easy To Use (1)
Powerful (1)
Heavy (2)
Best Uses
Small Projects (1)
Yes, I would recommend this to a friend
Easy To Use
Best Uses
Small Projects
Came with dented tank! Waiting for new tank or replacement washer! So bad it for 2 weeks and haven't got to assemble it
June 26, 2017
over 2 years ago
Describe Yourself:
Beginner- Casual Do-it-Yourselfer
Yes, I would recommend this to a friend
Doesent get any better
Did my driveway and house in record time.Anything smaller then this is a waste of money
April 15, 2016

Questions & Answers

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Browse 9 questions Browse 9 questions and 10 answers
My 4200 is surging and then quits after about 5 minutes of use
Ben on Jul 20, 2016
BEST ANSWER: Please contact DeWalt directly at 800-433-9258 for technical assistance.
Is this unit close coupled or belt driven?
Ryan on Jul 5, 2016
BEST ANSWER: Close coupled
Sent from BlueMail
Is this unit close coupled or belt driven?
Ryan on Jun 25, 2016
BEST ANSWER: coupled
Sent from BlueMail
Where does the water hose go?
A shopper on Jul 30, 2019
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician is 1-800-433-9258.
What type oil goes in my desalt 4240 washer? it has a GX390 engine and a 9.6GA15c pump
A shopper on Apr 8, 2019
BEST ANSWER: The oil will be the 5W-30 or the straight 30.
where do I get a soap hose bottle ?
Ron M on Feb 4, 2017
BEST ANSWER: Unfortunately, CPO does not carry soap bottles. Please contact Dewalt direct for more options and information. You can reach them at 800-433-9258.
where should the engine oil level be?
Godfrey P on Mar 10, 2018
BEST ANSWER: Usually you fill it to the top of the threads of the fill plug. Any more would overflow.
where should the oil level be?
A shopper on Mar 10, 2018
Feels like it is locked up after last use?
A shopper on Mar 6, 2018


The warranty on new DEWALT pressure washers is as follows:

DEWALT pressure washers model year 2008 (black frames) have a 2 year all components covered warranty.

They can be returned to the retailer, with a receipt up to 30 days for an exchange or refund. After 30 days they would have to go to a DEWALT Factory service center for warranty repair. The DEWALT Factory service centers will not take anything back for an exchange, it would have to be repaired.