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Best 4000 PSI Pressure Washer: Reviews & Guide (2020 Update)

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Looking for the best 4000 PSI pressure washer? If you are finding it hard to decide which will make an unrivaled option, let me help you with this quick guide.

Below are some of the brands and the models that are guaranteed to deliver superior cleaning performance. Their features, pros, and cons will also be discussed to help you make a well-informed choice.

When you are choosing a pressure washer, one of the most important is to make sure that the pressure is appropriate for the task that you wish to accomplish.

With this, a 4000 PSI pressure washer is the best choice if you are cleaning hard to reach areas with tough dirt on the surface, which cannot be easily removed with a lower PSI.

What is a 4000 PSI Pressure Washer Used For?

In most instances, a 4000 PSI pressure washers is rated for commercial applications and cleaning large areas. If you provide professional cleaning services, this is the best option. It can help you to save a lot of time, while at the same time, requiring only minimal effort on your end.

SIMPSON Cleaning ALH4240 Aluminum Gas 4200 PSI Pressure Washer

This is almost similar to the model from Simpson Cleaning that has been mentioned earlier in this post, with the most significant difference being its engine. Rather than Honda, the engine is from Kohler, which is equally powerful.

The CAT Industrial Triplex Pump is also a great add-on to this model. The head is made from forged brass, which can withstand even high pressure. There is also a thermal relief system, which effectively provides protection from high temperature, among other things.

Meanwhile, its chassis is made from 100% aluminum. For this reason, it is lighter than those that are made from steel. It can also resist corrosion and oxidation.

You will also love the steel-braided hose, which is durable. It is non-marring. To add, it is resistant to abrasions.

Pros:
  • Has an on-board accessory storage
  • Lightweight and easy to move around
  • High-quality tires
Cons:
  • Soap injector is quite inferior
  • Minimal user reviews

Briggs & Stratton Gas Pressure Washer 4000 PSI 4.0 GPM with Triplex Pump

This model has a flow rate of 4 GPM, which is quite common in most of the 4000 PSI pressure washers. Its power is derived from its OHV 420CC engine. It can deliver 21-foot-pounds of gross torque, which is one more thing indicative of the fact that it can indeed deliver powerful performance.

One of the notable features that you can find in this product is the detergent injection system. The water and the cleaning solution will be mixed in an instant, which will make cleaning quicker and easier.

To add, it also has 12-inch never flat wheels. You do not have to worry that it will deflate or that it will have holes from hitting sharp edges on the ground. Like the machine itself, the wheels are built to withstand the test of time.

There are also built-in accessory compartments. This will make it easy to keep your things organized and will provide you with easy access to the accessory that you will need to complete a task.

This 4000 PSI pressure washer comes with a 2-year warranty from the manufacturer.

Pros:
  • Made by a trusted brand
  • Excellent wand and hose
  • East to maneuver
Cons:
  • Few reviews are available online
  • Poor packaging

DEWALT DH4240B 4,200 PSI Honda GX390 Belt Drive Gas Powered Heavy Duty Pressure Washer

DEWALT-DH4240B-4200-PSI-Pressure Washer

Looking at the technical specifications of this product, it is easy to tell that it is built for the tough jobs. It has 4 GPM, which is quite high compared to its competitors. It also comes with 5 quick-connect nozzles, including those that can be used even for chemical applications.

Another feature that can be attributed to its powerful performance is the GX390 engine, which delivers 13 HP of power. The pump is also designed in such a way that it will perform great while being able to demonstrate exceptional durability.

Still, with regards to its durability, it is good to know that it is incorporated into a frame that is made from aircraft-grade aluminum. To add, the manufacturer is offering a lifetime warranty on its frame, which is again another indication of its impressive quality.

For your comfort and convenience, on the other hand, there are dual handles for ease of moving around. Plus, there are large pneumatic tires that will tread effortlessly even on rough surfaces. A low-oil shutdown is also present in this model.

Pros:
  • Has a durable frame for long service life
  • Includes components from reputable brands
  • High flow rate
Cons:
  • Expensive price
  • No pressure gauge

NorthStar Gas Cold Water 4,000 PSI Pressure Washer

Gas-powered pressure washers often have a negative reputation because of the noise that they make when they are operating. Surprisingly, in the case of this model, it is quiet even as it works and delivers powerful cleaning. This is despite that it comes with a Honda GX390 389cc engine.

Another good thing about this model is that it has a horizontal shaft design. This is better than the vertical shaft and increases its durability by as much as five times.

The Comet pump that is incorporated in the unit is also worth pointing out. It has forged brass manifold, which is also contributory to its longevity. For protection, there is an included thermal protector, which protects the internal components of the unit.

With a push-down style cart, you can also expect that it will be easy to use. It might look heavy at first, but when pushed, you will be surprised at how user-friendly it is. Aside from the design of the tank, this is possible because of the excellent construction of the tires.

Pros:
  • Operates quietly despite being gas-powered
  • Has a direct drive motor
  • Equipped with several safety features
Cons:
  • Can be difficult to crank
  • Not fully-assembled

Generac SpeedWash 7122 3200 PSI 2.7 GPM 196cc Gas Powered Pressure Washer

If you want a pressure washer to be powerful, you should pick one that is powered by gas. They can be louder in terms of the noise that they create, but they can perform better even in the most demanding tasks. One of the reasons why this is powerful is because of its 2.7 GPM flow rate.

In terms of its motor, the unit is powered by a Generac 196cc OHV engine. This extra-powerful engine makes it a beast while exerting all the effort. With this engine, it does all the work and hence, fatigue can be minimized with its use.

Similar to its engine, the pump is also designed to be long-lasting. The pistons are ceramic-coated to deliver long-term functionality.

The design of the spray gun is also worth noting since it is comfortable and user-friendly. The nozzles are easy to change, depending on the intended application. The trigger is also easy to pull. Plus, the grip is designed with a cushion for your comfort.

Lastly, for your peace of mind, the manufacturer is offering a warranty that lasts for three years.

Pros:
  • Comes with a durable frame
  • High-flow rate
  • Powerful engine for versatile applications
Cons:
  • Can be noisy
  • For use only with cold water

PowerBoss Gas Pressure Washer 3100 PSI

PowerBoss-4000-psi-Gas-Pressure-Washer

This 3100 PSI pressure washer delivers a water flow rate of 2.7 GPM. It is powered by a Honda GC190 motor. Even experts would surely agree that Honda is a name that is hard to rival when it comes to quality and performance.

It is also a good thing that this model is ready to operate out of the box. Simply put, this means that you do not need to exert effort in its assembly. Once it is taken out of the box, the unit is ready to be used.

The 50-foot high-pressure hose is also a plus for this unit. You do not need to be near the product all the time. You will have the freedom to move because of the generous length of the hose. It is even made better by the fact that it has color-coded nozzles, including one that is specially designed for the application of chemicals.

For the frame and wheels, the manufacturer is offering a one-year warranty. For the other parts, meanwhile, the warranty is only three months.

Pros:
  • High-quality and durable frame
  • Excellent motor
  • Easy to push and pull
Cons:
  • Few user reviews are available online
  • Expensive price

SIMPSON Cleaning PS3228 PowerShot Gas Pressure Washer Powered by Honda

With only 2.5 GPM, this is one of the models mentioned in this post with the lowest flow rate. Nonetheless, this does not mean that its performance will be inferior. Thanks to its Honda GX200 engine, it is built to perform.

Another thing that makes the engine great is the low oil alert, which will minimize frustrations when using the pressure washer. You will be immediately notified when there is a need to change oil so that you can work continuously and to prevent damage to its components.

The triplex plunger pump is one feature that is worth highlighting in this model. It is an industrial-grade pump that can last through the years. More so, it comes with the revolutionary Power Boost technology, which increases its pressure.

Similar to the other pressure washers that are briefly reviewed in this post, it also has an on-board storage for easy access to its accessories. Plus, it has a spray wand that has interchangeable nozzles depending on the task that you wish to complete.

Pros:
  • Has a Honda engine that is easy to start
  • Long-lasting and easy to move tires
  • High-quality pump
Cons:
  • Can leave black marks on surfaces
  • Hose can easily twist

Simpson MSH3125 MegaShot 3200 PSI Gas Pressure Washer

To deliver superior cleaning performance, this model comes with a
GC190 Honda GX engine, which is considered as one of the leaders in the global market. This is complemented with a gas pump that has been designed exclusively by German engineers.

The product also comes with a user-friendly pressure control system, which is also one of its most notable features. With remote pressure control, it will be easy to adjust the pressure by just tapping the right wand.

Another innovative feature that you can find in this product is the VersaGrip spray gun, which is a patented technology. This reduces fatigue by making pressure washing a lot easier for its user.

More so, it has an upright design and a compact body. Even in tight spaces, it will be easy to move the pressure washer. This also means that it will not require too much space in the storage room.

However, there are some people who reiterated that the quality of the accessories could have been better. If this is your problem, you can easily buy replacement accessories. After all, their price is quite easy in the wallet.

Pros:
  • Integrated with a powerful engine
  • Starts from the first pull.
  • Has plenty of pressure for a wide array of tasks
Cons:
  • Accessories could have better quality
  • Poor packaging

Be Pressure PE4013HWPACOMZ Pressure Washer

The price of this model is ridiculously high, making it one of the most expensive of the products that have been mentioned in this post. For professionals, this can be a good choice, except for the fact that it does not fare well in terms of its popularity.

As we all know, the engine is the one that will be indicative of the performance of a pressure washer. With this model, you will be happy knowing that it has a 389cc GX390 Honda engine. It is gas-powered, which makes it even more superior when talking about performance.

To add, the pressure washer is also designed with a steel braided high-pressure hose with a length of 50 feet. It has an extensive reach and is also excellent when it comes to durability. Even with frequent and long-term use, you can expect that the hose will retain its functionality.

The 10-inch pneumatic tires, on the other hand, provide you with the assurance that moving it will be easy. With an aluminum frame, it is not as heavy as the others, and hence, fatigue can be minimized. Lastly, it also comes with rubber foot that can resist vibration.

Pros:
  • Versatile cleaning applications
  • Has a Honda engine
  • Large tires
Cons:
  • Not as popular as the other models
  • Expensive price

Eletron 4000 PSI 1800W 3.0 GPM Electric Pressure Washer Under $250

If you want a 4000 psi pressure washer to be powerful with a budget under $250 you should pick one that is powered by electric and Eletron 4000 PSI 1800W 3.0 GPM Electric Pressure Washer is great chose. One of the reasons why this is powerful is because of its 3 GPM flow rate.

In terms of its motor, the unit is powered with 1800watt brass motor. This extra-powerful engine makes it a beast while exerting all the effort. With this engine, it does all the work and hence, fatigue can be minimized with its use. It’s easily gets rid of dirt, grime, gunk, oil, rust, mildew and grease and the toughest. Provides effective high-pressure cleaning for your home and outdoor life, practical and durable.

Similar to its engine, the pump is also designed to be long-lasting. The pistons are ceramic-coated to deliver long-term functionality. It was really quiet and light enough to be easy to carry, doesn’t take much room to store, and has the power to do the cleaning jobs around the house with 35 ft cord and 5 quick-connect spray tips (0º, 15°, 25º, 45° and soap) for wash various surfaces.

Conclusion

Indeed, the best 4000 PSI pressure washer is a great equipment for industrial, cleaning and commercial applications. For serious DIY enthusiasts who are looking for a beast machine, it can also be a great investment.

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Comments

  1. I’m trying to figure out how much pressure washer I really need for the jobs I’d like to do. I want to do common things clean the bricks on the house up a bit, clean the cars on occasion, etc. but I would really like to use it to help clean and strip an approximately 400-500sqft deck. After cleaning (with just a hose, stiff bristle shop broom) and re-staining it two years ago it looks pretty rough. It does get a lot of sun, and I feel like there is great guidance on picking stains, there’s not quite enough on pressure washers.

    The discussion seems to center on electric vs gas, but there seems to be some cross over in PSI for some of them, even though the flow is higher on the gas powered. My question boils down to this: if I invest in a reasonable electric pressure washer (1400-1800psi or so) and get a reasonably narrow nozzle, would it be effective enough to strip a deck?

    We also have a concrete driveway and some sidewalks it would be nice to clean up probably a total of triple the area of the deck but from the sounds of it, an electric would never be able to clean those adequately in less than a day.

    Based on what I’ve learned and that as much as I would like to do this I can’t afford a 3200psi small arms grade water laser that would do anything I could ever need it to for most of my life. I also don’t truly have the time and other equipment to make upkeep reasonable. I think for me, a high quality adjustable nozzle (or multi-head) electric will be fine with the understanding that some things will take significantly longer than with a high powered gas version.

    Reply

    • I use a 3600 PSI Pressure Washer with a 15 degree nozzle/tip on all of my personal vehicles including two that have expensive custom paint jobs.

      If your car’s paint in intact it is not going to harm the paint at all as long as you use a 5 degree of better tip on the gun.

      If would not try the 0 degree tip at any pressure.

      0 degrees is the one thin stream of water, when the water is not fanning out at all.

      Also watch out for vinyl graphics, pin stripes, dealer stickers, as it will remove them, but will not harm a normal paint job in good condition.

      Stand back from the car a few feet and spray away.

      Most pressure washers, up to 1800 psi are made specifically for cars.

      What I use is indeed excessive, but only mentioned to prove to you that it will not harm the paint.

      So,

      1.) Make sure the water coming out of the gun has a fan to it and not just one straight stream.

      2.) Stay clear of vinyl graphics, pin stripes and dealer stickers unless you are back at least 6 feet.

      3.) If this is the first time that you are using a pressure washer on a vehicle, I would make sure it is no more than 1800 psi until you get used to it.

      4.) Do not hold the tip of the gun right up to the paint … stand back a few feet.

      Do that and you will be fine.

      Reply

  2. I have a 4000 psi Honda pressure washer that I can regulate the pressure down to 200 psi and up to 4000 if need be.you won’t need all that pressure to do a car,maybe wheel barrels or floor mat blasting, pressure washing houses and decks etc..

    Reply

  4. I’m leaning on a 4 GPM/4000 PSI Pressure Washer.

    Can anyone just give me a rough guideline on operating PSI on the following materials

    Concrete Driveway – 3.500 PSI

    Stonework – ???

    Brick – brick is a soft material ???

    Aluminum Siding—Window Exterior – 1200 to 1500 PSI

    Wood Decking – 1200 to 1500PSI

    Paint *Car washing* – 800 to 1000 PSI ?

    So confused on how to adjust the PSI.

    Some of recommended to use the unloader.

    Others have said, let the machine run at full tilt and just buy upsized nozzles.

    What’t the consensus. Do I just buy a pressure gauge and put it on the out and use the unloader or upsized #6, #8, #10 nozzles.

    Reply

  5. I bought a cheap under $100 Greenworks 1500PSI electric pressure washer from amazon 8 months ago. I used it to clean our lanai, which had not been cleaned for over 4 years – it was filthy! Encrusted with black mold and massive amounts of dirt. This was the cheapest solution I could find – and it worked like a charm. It was a slow process, the relatively low pressure was strong enough to clean the painted concrete thoroughly, but only a 1-2″ swath at a time — it took me 1 hour per day for 8 days to get the job done — but it worked perfectly.

    It may not be BIFL, but I don’t think any pressure washer is going to be “for life”. I’ve had a $400 gas powered pressure washer in the more distant past, and just starting the engine was a continual struggle — this one was so easy to use, it was pleasant! And it was so cheap, it would have cost me >>$100 to hire somebody to do the job for me, so after finishing the job, I’m already “ahead” financially.

    I bought this model after looking at the customer reviews – it got very good reviews there, and my experience was similar. Maybe, in this case, don’t BIFL, but go cheap?

    Reply

  6. Hot electric water pressures vs. Cold electric water pressures
    Which is better for what duty? Is hot or cold better for vehicles, side walks, vinyl siding, windows, brick buildings/houses, wood, removing paint/stains, etc. And also- what is a good PSI for these sort of things? Thinking between 2000 and 4000psi? What is best..?

    Reply

  7. I just bought a general pump pro flat surface cleaner 4000 psi 8gpm and i have a dewalt 3800 psi pressure washer…
    The pressure out of the wand is fine but as soon as i hook it to the flat surface cleaner the pressure drops and its not working right?
    There were no instructions with it so i cant really go step by step if someone can help me id appreciate it!

    Reply

  8. I’ve borrowed friends power washers for years, both Honda powered machines, the kind most non-professionals use. I’ve need one in two-three locations and decided to buy my own. My usage is light: a couple decks with clear stain, lawn furniture, gutters, siding. I don’t need to strip paint or do other sandblasting stuff.

    I’m thinking of two machines: Ryobi 2000 psi electric or Ryobi 3000 psi with Honda engine. I’m a huge Honda engine fan, but with at least 9 gas engines (not counting multiple cars, boats + my truck) around here I thought maybe an electric washer would work and give me one less engine to mess with. It’s like $180 electric, $350 gas. Which is best choise?

    Reply

  9. AR Clean Blue electric pressure washer. I have an AR118 (discontinued) 1500psi which is a great little unit I Use for walks, furniture, siding and windows as well as the car. They have a wide selection of models and are rock solid performers, and very competitively priced.

    Reply

  10. I bought a small electric pressure washer about 8 years ago. I love it. Mine is only 1200 psi and it is safe to use on my stucco. I use it to clean my concrete driveway and the concrete around my pool deck. I have also used it to clean my fence which is made of stained pressure treated wood. The key piece of information here is that 1200 psi is safe for many surfaces. I would never use a big gas washer with 2000 psi or more; they are for commercial applications.

    Reply

  11. I’m recommend an electric pressure washer here. I do agree with everyone that a gas pressure washer will have greater max pressure in general, but frankly I don’t think that outweighs the disadvantages.

    I have an electric pressure washer that I’ve had for years, and it does all of the following:

    Cleans concrete
    Cleans flagstone
    Cleans siding
    Cleans bricks
    Cleans my car (I have a variable pressure wand)
    Cleans vinyl moldings
    Strips paint
    Cleans deckboards
    I have multiple wands that allow me to change width of spray, and also a variable pressure.

    Gasoline powered pressure washer have all of the issues of maintaining a gas engine like winterizing, carb cleaning, air filter cleaning, fuel storage, mixing. Not to mention how loud it is during operation, and frankly it’s not very eco-friendly.

    I’m not going to pretend that a gas-powered pressure washer is not more powerful, but do you need that extra power? If an electric one will get the job done, you take it out plug it in and go to town. Easy.

    Reply

  12. I bought a cheap (roughly $100) Greenworks 1500PSI electric pressure washer from amazon 4 months ago. I used it to Clean Concrete & Driveways, which had not been cleaned for over 4 years – it was filthy! Encrusted with black mold and massive amounts of dirt. This was the cheapest solution I could find – and it worked like a charm. It was a slow process, the relatively low pressure was strong enough to clean the painted concrete thoroughly, but only a 1-2″ swath at a time — it took me 1 hour per day (I’m old and can’t work longer than that) for 8 days to get the job done — but it worked perfectly.

    It may not be BIFL, but I don’t think any pressure washer is going to be “for life”. I’ve had a $400 gas powered pressure washer in the more distant past, and just starting the engine was a continual struggle — this one was so easy to use, it was pleasant! And it was so cheap, it would have cost me >>$100 to hire somebody to do the job for me, so after finishing the job, I’m already “ahead” financially.

    I bought this model after looking at the customer reviews – it got very good reviews there, and my experience was similar.

    Reply

  13. I just moved to a large house from a small condo. This means that I have space to keep the boat in my driveway. It also means that I have fences, decks, siding, etc. I’m looking to buy a pressure washer As I said, I’ll be using it to wash the boat from time to time, plus my (wooden) deck, (vinyl) fence, (shingle) siding, plus driveway and probably occasionally some other stuff. I’m not looking to break the bank – I’ve seen some pretty expensive ones out there with power that I’m sure I don’t need. I’d say my budget is up to about $300.

    Anyone want to make a recommendation?

    Reply

  14. I’m a homeowner that uses one quite regularly for all types of jobs. Last year, I bought a Simpson pressure washer 4000 psi 3.5 gpm and it’s worked great. I bought a small sidewalk cleaner attachment from Northern Tool and it’s a real time saver on concrete. It’s been a great investment.

    Reply

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