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10 Best Gas Pressure Washers 2025 in the United States

#1

Winner

10.0 score

Simpson Cleaning 4200 PSI Gas Pressure Washer, 4.0 GPM Power Washer for Commercial Use, Honda GX390 Engine, 50-Foot Steel-Braided Hose, Aluminum Series, 49-State (ALH4240)

Simpson Cleaning 4200 PSI Gas Pressure Washer, 4.0 GPM Power Washer for Commercial Use, Honda GX390 Engine, 50-Foot Steel-Braided Hose, Aluminum Series, 49-State (ALH4240)

Simpson Cleaning

10.0 score

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The SIMPSON Cleaning ALH4240 Aluminum Series is a robust gas pressure washer designed to deliver exceptional cleaning performance, making it ideal for both professional contractors and serious DIY enthusiasts. With an impressive 4200 PSI and a flow rate of 4.0 GPM, it effectively tackles tough cleaning tasks like deck restoration and heavy-duty outdoor projects. Its HONDA GX390 engine ensures reliable power and easy starts, which can be particularly appealing for users who need a dependable machine for frequent use.

Rating
10.0
Chosen by1,479
PSI (Pounds per Square Inch)
GPM (Gallons per Minute)
Engine Size

Most important from
1529 reviews

PSI (Pounds per Square Inch)
The high PSI and GPM make short work of even the toughest cleaning projects.
GPM (Gallons per Minute)
The high PSI and GPM make short work of even the toughest cleaning projects.
Engine Size
The Honda GX390 engine is reliable and well muffled for such a large displacement.
Hose Length
The 50-foot hose is adequate but could benefit from being more flexible.
#2
9.4 score

Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456

Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456

SIMPSON

9.4 score

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The Simpson PS4240 PowerShot is a strong choice for anyone needing a powerful gas pressure washer, especially professionals who work on tasks like deck cleaning, wood restoration, and paint prep. It delivers a solid 4200 PSI and 4.0 gallons per minute, which means it can handle tough cleaning jobs efficiently. The Honda GX390 engine is well-known for reliability and easy starting, which adds to the convenience for regular use.

Rating
9.4
PSI (Pounds per Square Inch)
Nozzle Options
Hose Length and Material

Most important from
626 reviews

PSI (Pounds per Square Inch)
The pressure washer delivers strong, consistent power that makes tough cleaning tasks feel effortless and saves a lot of time.
Nozzle Options
Adjustable spray nozzles allow quick switching between high pressure for stubborn stains and gentler sprays for delicate surfaces, adding great versatility.
Hose Length and Material
The 50-foot hose length provides ample reach, letting you move around without constantly repositioning the unit.
Engine Power
Start-up is straightforward and reliable, with the Honda engine starting on the first pull when following instructions.
Portability and Weight
Operating the machine demands some strength and stamina, and its weight means you’ll likely need assistance loading it into a vehicle.
Detergent System
The detergent system and variety of nozzle tips enhance cleaning flexibility for different surfaces and grime types.
#3
9.4 score

SIMPSON Cleaning PS60869 PowerShot 4000 PSI Gas Pressure Washer, 3.5 GPM AAA Triplex Pump, Honda GX270 Engine, Includes Spray Gun, Wand, 5 QC Nozzle Tips, 3/8-inch x 50-Foot Monster Hose, 49-State

9%OFF

SIMPSON Cleaning PS60869 PowerShot 4000 PSI Gas Pressure Washer, 3.5 GPM AAA Triplex Pump, Honda GX270 Engine, Includes Spray Gun, Wand, 5 QC Nozzle Tips, 3/8-inch x 50-Foot Monster Hose, 49-State

SIMPSON

9.4 score

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The SIMPSON PS60869 PowerShot is a strong gas pressure washer ideal for professional use, especially for tasks like deck cleaning, wood restoration, or paint preparation. It delivers impressive power with 4000 PSI and 3.5 gallons per minute flow rate, which means it can handle tough cleaning jobs efficiently. The Honda GX270 engine is a reliable and well-known option, ensuring easy starts and steady performance. With a 50-foot hose made from durable material, you gain good reach without frequently moving the machine.

Rating
9.4
Engine Power
Hose Length and Material
Portability and Weight

Most important from
626 reviews

Engine Power
The Honda GX270 engine starts easily on the first pull and runs reliably, making operation straightforward and dependable.
Hose Length and Material
The 50-foot heavy-duty hose offers excellent reach but requires some effort to maneuver due to its durability.
Portability and Weight
This commercial-grade machine demands physical strength to operate and transport but rewards with significantly faster and more effective cleaning results.

Top 10 Best Gas Pressure Washers 2025 in the United States

#1

Winner

10.0  score
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Simpson Cleaning

Simpson Cleaning 4200 PSI Gas Pressure Washer, 4.0 GPM Power Washer for Commercial Use, Honda GX390 Engine, 50-Foot Steel-Braided Hose, Aluminum Series, 49-State (ALH4240)

PSI (Pounds per Square Inch): 4200
GPM (Gallons per Minute): 4.0
Engine Size: HONDA GX390
Nozzle Types: five quick-connect tips
Hose Length: 50 Inches
Portability: 13-inch pneumatic tires
Detergent Tank: 2.5 Gallons

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Chosen by 1479 this week

#2
9.4  score
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SIMPSON

Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456

PSI (Pounds per Square Inch): 4200 PSI
GPM (Gallons per Minute): 4.0 gallons per minute
Engine Power: Honda GX390
Portability and Weight: 141 lbs, 13-inch pneumatic tires
Nozzle Options: five quick-connect nozzles (0°, 40°, soap)
Hose Length and Material: 50-foot high-pressure hose, kink-resistant
Detergent System: detergent system applies soap
Ease of Maintenance: maintenance-free pump with thermal relief

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#3
9.4  score
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SIMPSON

SIMPSON Cleaning PS60869 PowerShot 4000 PSI Gas Pressure Washer, 3.5 GPM AAA Triplex Pump, Honda GX270 Engine, Includes Spray Gun, Wand, 5 QC Nozzle Tips, 3/8-inch x 50-Foot Monster Hose, 49-State

PSI (Pounds per Square Inch): 4000 PSI
GPM (Gallons per Minute): 3.5 gallons per minute
Engine Power: Honda GX270
Portability and Weight: Portable but somewhat heavy
Nozzle Options: Five quick-connect nozzle tips
Hose Length and Material: 50-foot durable hose
Detergent System: Supports detergent use
Ease of Maintenance: Needs some maintenance knowledge

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9% OFF
#4
9.1  score
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DEWALT

DeWalt DXPW3400PRNB-S PressuReady 3400 PSI Gas Pressure Washer with Quick Start Technology, 2.5 GPM Axial Cam Pump, 208cc Engine, Cold Water, Includes 25-Ft Hose, Nozzles, Spray Gun & Wand, 49-State

PSI (Pounds per Square Inch): 3400
GPM (Gallons per Minute): 2.5
Hose Length: 25 Feet
Portability: 10-inch wheels

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15% OFF
#5
8.5  score
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DEWALT

DeWalt DXPW3425E-S 3400 PSI Gas Pressure Washer, 2.5 GPM Axial Cam Pump, 208cc Recoil with Electric Start Engine, Spray Gun and Wand, 5 QC Nozzles, 5/16-in. x 25-ft. Hose, 49-State

PSI (Pounds per Square Inch): 3400 PSI
GPM (Gallons per Minute): 2.5 gallons per minute
Engine Power: 208cc
Portability and Weight: 81 lbs, 10-inch pneumatic tires
Nozzle Options: five quick-connect nozzles, soap
Hose Length and Material: 25-foot MorFlex, flexible hose
Detergent System: basic detergent with soap nozzle
Ease of Maintenance: regular engine and pump care

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#6
7.9  score
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DEWALT

Dewalt 61147S 3300 PSI 2.4 GPM Gas Cold Water Pressure Washer

PSI (Pounds per Square Inch): 3300
GPM (Gallons per Minute): 2.4
Engine Size: 208cc
Nozzle Types: 0°, 15°, 25°, 40°, Soap
Hose Length: 25 Feet
Portability: 10-inch tires, 64 pounds

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#7
7.9  score
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SIMPSON

Simpson Cleaning 3400 PSI Gas Pressure Washer, 2.5 GPM Power Washer for Commercial Use, Honda GX200 Engine, 25-Foot Hose, Aluminum Series, 49-State (ALH3228-S)

PSI (Pounds per Square Inch): 3400 PSI
GPM (Gallons per Minute): 2.5 gallons per minute
Engine Power: Honda GX200
Portability and Weight: 73 lbs, aluminum frame, 10-inch tires
Nozzle Options: Five quick-connect nozzles, 0° to soap
Hose Length and Material: 25-foot Monster hose, kink-resistant
Detergent System: Basic, uses 0° and soap nozzles
Ease of Maintenance: Straightforward, thermal pump protection

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#8
7.9  score
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SIMPSON

Simpson 61014 3500 PSI at 2.5 GPM Honda GX200 with AAA AX300 Axial Cam Pump Cold Water Professional Gas Pressure Washer PS61002-S

PSI (Pounds per Square Inch): 3500
GPM (Gallons per Minute): 2.5
Engine Size: Honda GX200
Nozzle Types: five quick-connect tips
Hose Length: 25 Feet
Portability: 10-inch pneumatic tires

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25% OFF
#9
7.3  score
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SIMPSON

Simpson Cleaning 3200 PSI Gas Pressure Washer, 2.5 GPM Power Washer with Soap Tank and Turbo Nozzle, 25-Foot HyFlex Hose, Clean Machine, 49-State (CM61456)

PSI (Pounds per Square Inch): 3200 PSI
GPM (Gallons per Minute): 2.5 Gallons Per Minute
Engine Power: 174 cc
Portability and Weight: 50 lbs, steel frame, 12-inch wheels
Nozzle Options: four quick-connect nozzles, turbo, soap
Hose Length and Material: 25-foot HyFlex hose
Detergent System: soap tank
Ease of Maintenance: maintenance-free OEM axial cam pump

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#10
7.0  score
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SIMPSON

Simpson Cleaning 3400 PSI Gas Pressure Washer, 2.5 GPM Power Washer for Residential Use, CRX Engine, 25-Foot Hose, Clean Machine, 49-State (CM61248-S)

PSI (Pounds per Square Inch): 3400 PSI
GPM (Gallons per Minute): 2.5 gallons per minute
Engine Power: 208 cc CRX engine
Portability and Weight: 64 lbs, steel frame, 10-inch wheels
Nozzle Options: Four quick-connect nozzles, surface cleaner
Hose Length and Material: 25-foot high-pressure, flexible hose
Detergent System: Modest detergent tank capacity
Ease of Maintenance: Straightforward, follow manual for upkeep

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Buying Guide for the Best Gas Pressure Washers

Choosing a gas pressure washer can be overwhelming because there are many options and features to consider. The right machine can make cleaning your driveway, deck, car, or house siding much easier and faster. It's important to think about the types of jobs you'll do most often, how much power you really need, how easy the washer is to move and use, and what kind of upkeep it requires. By focusing on the most important specifications and matching them to your needs, you'll be able to pick a pressure washer that works well for you and lasts a long time.
PSI (Pounds per Square Inch)PSI measures the pressure output of the washer and tells you how forceful the water stream will be. This is a key factor in how well the washer can remove tough dirt and grime. Lower PSI models, under 2000 PSI, are better for lighter tasks like cleaning cars and patio furniture, while mid-range models (2000–3000 PSI) suit decks, fences, and driveways. If you need to strip paint or tackle very tough stains on concrete, a model over 3000 PSI may be best. Think about the surfaces you will clean to choose the right PSI; too much power can damage delicate surfaces, while too little may not be effective for larger cleaning jobs.
GPM (Gallons per Minute)GPM is a measure of how much water the washer can spray each minute. A higher GPM means the washer can clean bigger areas more quickly, which is especially useful for large or heavily soiled surfaces. Most homeowners do well with machines in the 2–3 GPM range, which balance efficiency and practicality. If you only plan to do smaller jobs, a lower GPM may be all you need, while larger projects may benefit from a higher GPM. Matching GPM with your cleaning needs will help you avoid wasting water and get the right cleaning performance.
Engine PowerThe engine in a gas pressure washer is rated by its cubic centimeters (cc) or horsepower (HP), which indicates its strength and ability to keep up with demanding tasks. A bigger engine usually means more PSI and GPM, but also more weight and noise. For home cleaning, a smaller engine (around 140–180cc) may be sufficient, while frequent heavy-duty jobs may require a larger engine (200cc or more). Think about how often you'll use the washer and how tough your typical jobs will be to decide if you need a more powerful engine.
Portability and WeightGas pressure washers can be heavy and bulky, so portability is important if you need to move it around your property or store it in tight areas. Lighter models are easier to transport but may be less powerful, while heavier models often have bigger wheels and sturdy frames. Consider if you will often carry the washer up and down stairs, over grass, or through gravel, and look for one with wheels and a handle that make moving it convenient for your situation.
Nozzle OptionsThe nozzle controls the spray pattern, which changes how concentrated the water force is. Washers typically come with several nozzles for different cleaning tasks—from narrow streams for tough stains to wide fans for gentle rinsing. Having multiple nozzle choices is helpful for users who need versatility across various surfaces. If you do a mix of cleaning jobs, check that the washer supports easy nozzle changes and offers a range of spray patterns to suit everything you plan to clean.
Hose Length and MaterialThe hose length affects how far you can reach without moving the washer, while the material impacts flexibility and durability. A longer hose (25 feet or more) is helpful for big areas but may reduce pressure slightly. Look for hoses made to resist kinking and damage from rubbing against rough surfaces. If you’ll be cleaning large areas, choose a longer, high-quality hose; for smaller, more confined spaces, a standard length may be more manageable.
Detergent SystemMany gas pressure washers include a detergent tank or siphon system, making it easier to apply soap or cleaners while washing. This is useful for washing cars, siding, or very dirty surfaces. Some systems are built-in, while others require you to attach an external bottle. If you expect to do a lot of soap-based cleaning, look for a washer with a convenient detergent feature that fits the types of cleaners you plan to use.
Ease of MaintenanceGas machines require regular upkeep, including oil changes, air filter cleaning, and seasonal storage steps. Some models are easier to maintain with accessible oil drains and filters, or have features that reduce the need for frequent servicing. If you want less hassle, consider models known for easy access to maintenance points or that have features designed to simplify long-term care.

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