Best Gas Pressure Washer Under $400

Best Gas Pressure Washer Under $400

If you’re in the market for a powerful cleaning tool that can handle even the toughest outdoor cleaning tasks, the best gas pressure washer is an excellent option.

Gas pressure washers offer mobility and power that electric pressure washers can’t match, making them a popular choice among homeowners, contractors, and other professionals. They can produce high-pressure water streams that quickly and effectively blast away dirt, grime, and stains from various surfaces.

In this guide, we’ll look closely at some of the best gas pressure washers today. We’ll highlight their key features, strengths, and weaknesses and offer tips on what to look for when choosing a gas pressure washer that meets your needs.

1. Generac 7122 SpeedWash


  • Color: Orange
  • Water Pressure: 3,200 psi
  • GPM: 2.7
  • Weight: 62 pounds
  • Hose Length: 25 Feet

The Generac SpeedWash is powered by a 196cc engine, which produces 3,200 psi at 2.7 GPM. The Generac 7122 SpeedWash has many features that set it apart from other pressure washers. An easy-to-use power dial allows pressure adjustment on the spray gun. It comes equipped with four nozzles that can be interchanged with one another. The generous length of the high-pressure hose provides ample reach, allowing you to clean large areas without constantly moving the pressure washer.

When it comes to performance, the Generac 7122 SpeedWash doesn’t disappoint. With its powerful 3200 PSI and 2.7 GPM (gallons per minute) flow rate, it has the muscle to tackle even the most stubborn dirt, grime, and stains.

The Generac 7122 SpeedWash boasts a sturdy and durable construction designed to withstand regular use and harsh outdoor conditions. Its rugged frame and large, never-flat wheels provide excellent stability and maneuverability, allowing you to navigate different terrains easily.


  • It comes with a power dial and a broom.
  • Four interchangeable nozzles are included
  • 25-foot power hose


  • An expensive price point

2. SIMPSON Cleaning MSH3125


  • Water Pressure: 3,200 psi
  • GPM: 2.5
  • Weight: 65 pounds
  • Power Source: Gasoline
  • Color: Black

The SIMPSON Cleaning MSH3125 is a highly regarded pressure washer that has gained popularity among homeowners and professionals.

The MSH3125 is a gas-powered pressure washer that delivers exceptional performance and reliability. With a maximum pressure of 3,200 PSI (pounds per square inch) and a flow rate of 2.5 gallons per minute, it offers powerful cleaning capabilities for various tasks.

One of the standout features of the MSH3125 is its Honda GC190 engine, known for its durability and efficiency. The engine starts easily and runs smoothly, providing consistent power to the pressure washer. It also features a maintenance-free OEM Technologies axial cam pump, enhancing overall performance and extending the unit’s lifespan.

Overall, the SIMPSON Cleaning MSH3125 is a top-notch pressure washer with excellent performance and durability. Its powerful engine, high-pressure output, and versatile nozzle


  • 10-inch pneumatic tires
  • Rugged construction
  • It comes with five quick-connect nozzles


  • It is not shipped to California

3. WEN PW3200 Gas-Powered 3100 PSI 208cc Pressure Washer


  • Water Pressure: 3,100 psi
  • Color: Black/Orange
  • GPM: 2.5
  • Weight: 74 pounds
  • Power Source: Gas Powered

Introduce the WEN PW3200 gas-powered pressure washer, mentioning its purpose and importance in outdoor cleaning tasks. It has a sturdy steel frame with two large wheels and a handle for easy maneuverability. The engine is located at the front of the pressure washer and has a large gas tank.

The WEN PW3200 has a powerful 208cc OHV engine that delivers 3100 PSI and 2.5 GPM. Its high-pressure output and 5 color-coded nozzles make it easy to tackle various cleaning tasks, and the built-in soap dispenser is a convenient feature. Although heavy and bulky, the pressure washer is easy to use and maneuver.

The WEN PW3200 is easy to use, with a simple pull-start mechanism for the engine. The pressure washer has a built-in soap dispenser.


  • Powerful 208cc OHV engine
  • The high-pressure output of 3100 PSI and 2.5 GPM
  • 5 color-coded nozzles for different cleaning tasks
  • Sturdy steel frame with large wheels for easy maneuverability


  • Heavy and bulky, which may make it difficult to store

4. SIMPSON Cleaning ALH4240 Aluminum Gas Pressure Washer


  • Water Pressure: 4,200 psi
  • GPM: 4.0
  • Weight: 124 pounds
  • Power Source: Gasoline
  • Hose Length: 50 Inches

SIMPSON Cleaning is a well-known brand in the pressure washer market, and the ALH4240 is one of their top-of-the-line products. It is a gas-powered pressure washer with a powerful Honda GX390 engine and a professional-grade triplex pump. It is designed to handle even the toughest cleaning tasks easily and efficiently.

The SIMPSON Cleaning ALH4240 is a gas-powered pressure washer that packs a punch. It features a Honda GX390 engine known for its reliability and power.

The engine generates 4200 PSI of water pressure and 4 gallons of water per minute, making it one of the most powerful pressure washers on the market. The ALH4240 also has a CAT triplex pump for high-performance and long-lasting durability.


  • Powerful Honda GX390 engine
  • CAT triplex pump for high-performance and durability
  • Ideal for heavy-duty cleaning jobs
  • Comes with a spray gun, wand, and nozzle


  • Heavy and difficult to move around

5. BLUBERY 3500 PSI Gas Pressure Washer


  • Water Pressure: 3,500 psi
  • GPM: 2.6
  • Weight: 80 pounds
  • Power Source: Gas Powered

The Blubery 3500 PSI Gas Pressure Washer is a powerful and versatile cleaning tool that offers the convenience of gas-powered operation. Its high pressure, durable construction, and adjustable spray settings are well-suited for outdoor cleaning.

The features of this pressure washer are its gas-powered engine. This means you don’t have to rely on an electrical outlet, allowing you to move around and clean larger areas without the hassle of cords or cables. The engine is reliable and starts easily, making it convenient to use.

The Blubery 3500 PSI Gas Pressure Washer has a durable steel frame and large wheels, making it easy to maneuver on different terrains. It also features a sturdy spray wand with various nozzle attachments, allowing you to adjust the spray pattern and intensity according to your cleaning needs. Whether you need a wide fan spray for general cleaning or a focused jet spray for stubborn stains, this pressure washer covers you.


  • 212cc motor
  • Suitable for brickwork, fences, cars, patio furniture, and driveways
  • 4 angles nozzles
  • 13-inch pneumatic tires
  • 50-foot high-pressure hose


  • Heavyweight

6. Generac 8874 2900 PSI 2.4 GPM Pressure Washer


  • Water Pressure: 2,900 psi
  • GPM: 2.4
  • Weight: 50 pounds
  • Power Source: Gas Powered

The Generac 8874 is powered by a 196cc OHV engine that delivers 2900 PSI and 2.4 GPM. This engine is designed to provide reliable and consistent power, even during extended use.

With its axial cam pump, the Generac 8874 pressure washer offers reliable performance and long-lasting durability. It features an easy-to-use spray gun and wand and multiple quick-change nozzle tips that adjust the spray pattern according to your cleaning needs.

The pressure washer comes with a 25-foot high-pressure hose, allowing for extended reach and flexibility during cleaning. This is particularly useful when cleaning larger areas or hard-to-reach spots.


  • Lightweight build
  • Includes four quick-change nozzles
  • Rubberized never-flat tires


  • No onboard soap

Relevant Article

What to Consider When Choosing the Best Gas Pressure Washer

When choosing the best gas pressure washer for your needs, you should consider a few key factors to ensure you make the right choice. Here are some of the most important things to keep in mind:


Gas pressure washers are rated by their cleaning power, typically measured in PSI (pounds per square inch) and GPM (gallons per minute). A higher PSI and GPM rating means more cleaning power, which is important if you tackle tough jobs like removing oil stains from a driveway or cleaning a heavily soiled deck.

Pressure Output

The pressure output of the gas pressure washer is one of the most critical factors. Higher pressure output typically means better cleaning power, so you’ll want to choose a pressure washer with a high PSI (pounds per square inch) rating. Look for a pressure washer with at least 2000 PSI for most household cleaning needs or 4000 PSI for tougher jobs.


Gas pressure washers are typically heavier and bulkier than their electric counterparts, so it’s essential to consider how portable the model you’re considering is. Look for models with wheels and a handle to make it easier to move around, and consider the machine’s weight when filled with fuel and water.


Durability is an essential factor to consider when choosing the best gas pressure washer. A durable pressure washer will withstand regular use and exposure to the elements, reducing the need for repairs or replacement parts. Here are some factors that contribute to the durability of a gas pressure washer:


The frame of the gas pressure washer should be made of sturdy and durable materials, such as steel or aluminum. Look for a pressure washer with a solid frame that withstands impacts and regular use.


The components of the gas pressure washer, such as the pump, hose, and fittings, should be made of high-quality materials that can withstand the high pressure and flow rate of the water. Look for a pressure washer with components made of durable materials such as brass or stainless steel.


The engine of the gas pressure washer should be high-quality and reliable, with a reputation for durability. Look for a pressure washer with an engine from a reputable manufacturer, such as Honda or Briggs & Stratton.


Regular maintenance can help to extend the life of your gas pressure washer. Look for a pressure washer with easy-to-access components, such as the oil and air filters, to make maintenance tasks easier.

Fuel efficiency

Gas pressure washers can be expensive to operate if they are not fuel-efficient, so it’s essential to consider how much fuel a model uses per hour. Look for models with low fuel consumption rates, saving you money in the long run.

Noise level

Gas pressure washers are typically louder than electric models, so it’s essential to consider the noise level of the model you’re considering. Look for models with a lower decibel rating if you’ll use it in a residential area or around neighbors.


Some gas pressure washers have various accessories, such as spray nozzles, extension wands, and surface cleaners. Consider what accessories you might need for the tasks you’ll be using your pressure washer for.

Considering these factors, you’ll be better equipped to choose the best gas pressure washer. Don’t forget to read reviews and compare models to find the best option for your budget and cleaning requirements.

Best Gas Pressure Washer Under $400 : Video Guide

Frequently Asked Questions (FAQs)

What is a gas-pressure washer?

A gas-pressure washer is a cleaning tool that uses a gasoline engine to power a pump that generates high-pressure water to clean various surfaces. They are commonly used for outdoor cleaning tasks such as washing cars, decks, patios, and sidewalks.

How is a gas-pressure washer different from an electric-pressure washer?

Gas pressure washers are typically more powerful and have a higher output than electric pressure washers. They are also more portable and don’t require an electrical outlet, making them ideal for outdoor cleaning. However, they can be louder and require more maintenance than electric pressure washers.

What are PSI and GPM in a gas pressure washer?

PSI stands for pounds per square inch, which measures the pressure output of the gas pressure washer. GPM stands for gallons per minute, which measures the water flow rate of the gas pressure washer. These factors are essential when choosing the best gas pressure washer.

What are the common uses for a gas pressure washer?

Gas pressure washers are commonly used for cleaning outdoor surfaces such as decks, patios, driveways, and sidewalks. They are also useful for washing cars, boats, and outdoor furniture.

How do I maintain my gas pressure washer?

Regular maintenance ensures your gas pressure washer operates at peak performance and lasts long. Some maintenance tasks include changing the oil, checking and replacing the air filter, inspecting the pump and hoses for damage, and ensuring all fittings are tight and secure.

Final Thoughts

A gas pressure washer can be a valuable tool for outdoor cleaning tasks, providing high pressure and flow rate to effectively remove dirt, grime, and stains from various surfaces.

When choosing the best gas pressure washer, consider factors such as pressure output, engine power, durability, and ease of maintenance. By selecting a high-quality gas pressure washer and properly maintaining it, you can ensure it lasts long and provides reliable cleaning performance for years.

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