A pressure washer is a handy tool with plenty of uses. From clearing out gutters and cleaning walls to stripping old paint, pressure washers have so much versatility. Pressure washers come in models suitable for residential or commercial use.
Residential pressure washers are an excellent choice for helping you with your cleaning duties around the home, and they’ll leave your car in showroom condition after a wash. Most residential pressure washers offer PSI (Pounds per Square Inch) ratings of between 1,200 to 2,400-psi.
These machines don’t have the strength to handle heavy-duty cleaning jobs and running them for extended period results in damage to the washer.
For heavy-duty work, you’ll require the services of a professional pressure washer suitable for commercial use. These machines are far different from the models ideal for home use. A 4,000-psi pressure washer delivers some serious power, and using it to wash your car might end up with your denting the bodywork or lifting the paint.
A commercial-grade pressure washer suits tasks such as lifting stubborn oil stains from garage shop floors or stripping old paint from walls before you add a fresh coat.
In this review, we’ll look at the best 4,000-psi pressure washers, and make recommendations on the top models. If you’re a contractor or landscaper, then this review will help you choose the right machine to complement your tools.
Our Top Picks
Those readers that don’t have the time to go through all of the models in this review can rely on our top picks. We selected the three best 4,000-psi pressure washers and ranked them.
Top Pick: Simpson Cleaning ALH4240
- Honda GX390 engine W/ oil alert
- Cat industrial Triplex plunger pump
- 3/8 in. X 50 ft. Monster hose is non-marring, kink and abrasion resistant and equipped w/ quick connect
- Aircraft grade aluminum frame W/ Brushed extruded aluminum tubing
- 13” Premium pneumatic wheels. Wand-31 inch Steel with quick connect and threaded M22 connection
$1,199.00Click to View on Amazon
The Simpson ALH4240 is a powerful machine featuring a GX390 engine for high working pressures when cleaning. The unit comes with a long, flexible discharge hose, a robust frame, and wheels for portability. This model offers you the best balance between price and performance, earning it the top spot in this review.
Premium Pick: Pressure Pro E4040HC Heavy Duty
- Powerful 13 Horsepower GX390 Honda Engine is easy to start, quiet and reliable
- CAT Brand Triplex Plunger Pump helps run cooler
- Thermo Sensor prevents overheating in bypass mode
- Professional quality insulated gun and wand assembly with 5 quick connect nozzles and 50 feet of non-marking, steel re-enforced high pressure hose
- CARB Compliant
$1,608.98Click to View on Amazon
For contractors and landscapers looking for the best premium 4,000-psi pressure washer, this model is your best option. The appliance comes with a built-in thermo-sensor to prevent the engine from overheating during use. You also get shock-absorbing tires, and an aircraft-grade frame to support the machine during operation.
Budget Pick: Briggs & Stratton Gas Pressure Washer
- 4000 MAX PSI / 4.0 MAX GPM. Fuel Tank Capacity (Gallons)- 1.75
- Powerful, durable and easy-to-maintain Briggs & Stratton 2100 Series OHV Engine fuels every outdoor cleaning project
- Premium Annovi Reverberi Triplex Pump with adjustable pressure regulator lets you to fine tune the PSI to best fit each specific cleaning task
- 5 quick-connect tips (0°, 15°, 25°, 40°, soap) provide predefined spray patterns & allow you to easily switch between a variety of cleaning tasks
- Upgrade your power washing in seconds by simply siphoning cleaning solution into the water stream. Engine Displacement:420 cc
$803.39Click to View on Amazon
If you’re looking for the best budget buy, then this model has everything you need at an affordable price point. The adjustable pressure regulator lets you customize your cleaning, and it’s also suitable for use with cleaning detergents.
4,000-psi Pressure Washer Reviews
Here’s our full rundown of the best options on the market right now.
Simpson Cleaning ALH4240 – The Best Overall Model
Landscapers, contractors, and handymen looking for the best high-pressure washer at an affordable price, will love the Simpson ALH4204. This model wins our award for the best 4,000-psi pressure washer available. If you’re looking for a machine that can do any cleaning, then this model is your top choice.
The Simpson ALH4020 is a gas-powered model producing powerful jets of water at pressures of up to 4,200-psi. The machine offers excellent user control during use, and it’s powerful washing action strips away oil, grease, and dirt from any surface.
The Simpson ALH4020 gets its power from a robust GX390 Honda engine that provides exceptional fuel efficiency, allowing long run times between fills. This model suits contractors, landscapers, and handymen that are looking for a machine they can use every day without paying a hefty price tag or skimping on quality.
The powerful engine and gas tank sit on an aircraft-grade frame made from aluminum tubing. The frame offers the user stability during use, as well as easy portability around job sites. The frame also acts as a bumper. It protects the engine and other parts from damage in the event of a collision.
With the Simpson ALH4020, you get a 50-foot hose that makes it easy to reach any gutter or roof. The long hose is a bonus, as many other machines don’t offer lengths over 25-feet.
The frame sits on top of two 13-inch air-filled tires, allowing you to pull the machine over bumps and stones without the wheels jamming.
This high-pressure washer has plenty of power and suits the most demanding job sites. The machine offers a high-pressure output that’s ideal for industrial use. With an affordable price tag and excellent build quality, this high-pressure washer is our top choice in this review.Pros:
- Powerful performance from the GX390 motor
- Flexible hose with long length
- Wheels for portability
- Strong and durable frame
- Features 5-interchangeable spray nozzles
- Fast cleaning with a high-velocity water jet
- Not suitable for residential use
Pressure Pro E4040HC Heavy Duty – The Best Premium Model
Those handymen, contractors, and landscapers that need the most powerful pressure washer on the market should take a look at the Pressure Pro E4040HC Heavy-Duty model. This washer lands our top spot for the best premium high-pressure washer available.
This model also features design and construction with a Honda GX390 motor for superior performance. The engine produces 13-hp, providing you with a powerful jet of water that’s strong enough to lift old paint off of walls and clean the deepest oil stains on porous floors.
The engine is built-to-last, and you can expect a long service life from this machine. This model also includes unique safety features to prevent operator malfunction. The built-in thermos-sensor detects the overheating of the engine during use. If the washer starts to run hot, then the thermos-sensor shuts the system down, allowing it to cool.
If you use a pressure washer for extended periods, then this thermos-sensor could save your machine from catastrophic engine failure during overheating.
The set also includes a high-pressure water hose with re-enforcement to prevent it from leaking or splitting at high operating pressures.
The motor and pressure washer components mount to an aircraft-grade frame that’s robust and durable. The framework uses high-quality mountings to minimize vibrations during use, making your operator experience that much more enjoyable. The sturdy frame also prevents damage from other machines or tools bumping into the unit.
It’s common for users to forget about the fuel level when working with a high-pressure washer. Unfortunately, if your machine runs out of fuel, it could damage the internal components of the engine. Fortunately, the Pressure Pro model includes a low-oil shutdown switch that kills the motor when the fuel tank runs dry, preventing damage to the machine.
Those handymen, contractors, and landscapers looking for the best pressure washer money can buy, should consider the Pressure Pro. This model has plenty of unique safety features and a powerful motor that delivers exceptional performance at pressures up to 4,200-psi.
This model is the most expensive high-pressure washer in this review. However, if you need a machine that will never let you down, this model is your top choice in this review.Pros:
- Powerful operation
- Thermo-sensor to stop overheating
- Big tires for smooth movement
- Aircraft-grade frame design and materials
- High-pressure spray hose included
- Sturdy and reliable on any job site
- Not suitable for residential use
Briggs & Stratton Gas Pressure Washer – The Best Budget Model
If you’re looking for the best high-pressure washer on a budget, then you need to take a look at the Briggs & Stratton Gas Pressure Washer. This model wins our award for the best budget high-pressure washer available.
This high-quality machine features a Briggs and Stratton 2100 engine for its power plant. The engine has plenty of power, but it’s much lighter than the Honda GX390, which is a popular choice in other models.
The washer motor and tank come mounted on a frame connected to air-filled tires that make it easy to move this model between job sites over any type of terrain. We like that this machine is compatible with detergents, making it an excellent choice for power cleaning.
The Briggs & Stratton gas pressure washer operates at pressures of up to 4,000-psi, which is more than enough power for the toughest cleaning jobs.
Briggs & Stratton Gas Pressure Washer is a great all-round pressure washer. We like the adjustable pressure regulator that lets you scale down the pressure if you want to do residential work with the machine, such as wash your car.Pros:
- Excellent price point
- Powerful engine
- Suitable for use with cleaning agents
- Comes with a 50-foot hose
- A robust frame and durable tires
- Doesn’t come with any additional spray nozzles
Generac 6565 Pressure Washer
The Generac 6565 pressure washer is a top-quality machine designed with powerful cleaning in mind. The 420-cc OHV motor provides pressures of up to 4,200-psi, making it a top contender for the best high-pressure washer.
You also get a 50-foot hose included in the package, making it easy to reach any gutter or roof. This model also features a triplex pump to increase operating pressures, providing plenty of power in your cleaning tasks.
The machine sits on a sturdy, robust frame mounted on air-filled tires for easy movement. The frame also protects against any bumps or knocks.
This compact unit provides landscapers, handymen, and contractors with a portable machine that’s easy to transport around job sites. Toss it in the back of your truck and take it anywhere you need to go.Pros:
- Powerful engine and pressure pump
- Powerful pump and engine
- Comes with plenty of safety features
- 50-foot high-pressure hose included
- Compact design allows for easy storage
- Not suitable for residential use
Simpson Cleaning PS4240 PowerShot
Simpson Cleaning gets a second mention in this review for the PowerShot model. This model uses the same GX390cc Honda motor as the previous model in this review, giving the machine plenty of power. The engine produces pressures of up to 4,200-psi, producing water jets that can take care of the toughest grime and grease on any surface.
The pressure washer sits on top of a welded steel frame, providing the machine with protection while making it portable.
You get a built-in Triplex pump for operation at very high pressures, without the fear of blowing seals on the machine.
We like the spray-gun type hose that comes with this model. The hose features an ergonomic grip that provides the user with total control during use.
Overall, the Simpson PowerShot is a more refined version of the ALH4020. This machine is an excellent choice for those contractors, landscapers, and handymen looking for a good entry-level machine that will last.Pros:
- Welded steel frame for durability
- Triplex plunger pump design
- The ergonomic hose acts like a spray gun
- compatible with all quick-connect nozzles
- 13-inch air-filled tires
- Not suitable for home use
- Somewhat expensive
Champion 100386 Gas Pressure Washer
The Champion 100386 features a 389cc, single-cylinder OHV engine that produces pressures of up to 4,200-psi. Featuring an Annovi Reverberi triplex pump, this machine is suitable for heavy-duty use in the most demanding working conditions for contractors, landscapers, and handymen.
We like the spray hose that acts like a spray gun, giving you more control over the water when cleaning. The ergonomic trigger reduces operator fatigue while improving your aim.
The machine comes mounted on a frame with air-filled tires for easy transport, with user controls mounted on the handle for user-friendly operation.
We like the compact design of this machine. However, dynamite comes in small packages, and this machine is no different. Expect a powerful cleaning action that’s easy to control on any surface.Pros:
- 50-foot high-pressure hose included
- The hose acts like a spray gun
- 4-foot hose for detergent
- Triplex pump for excellent performance
- Powerful 389cc motor
- Not suitable for residential use
NorthStar 15782020 Pressure Washer
The NorthStar pressure washer Relies on the powerful GX392 Honda engine for its power. This machine is one of the few in this review that’s suitable for home use. The pressure washer produces pressures of up to 4,000-psi using its triplex pump.
The machine also comes with a durable steel frame and 15-inch air-filled tires for easy movement around the job site. The model also comes with several safety features that make it a great choice for first-time users of this equipment.
The long spray hose attaches to a spray gun that makes cleaning any surface a breeze.
Overall, the NorthStar pressure washer is a reliable machine. We like the vibration isolation that damps sound during operation.Pros:
- Features direct-drive design
- Suitable for general residential use
- Long service life
- Resistant to corrosion
- Roll-cage frame for protection
- Vibration isolation