7 Best Simpson Pressure Washer in 2022 (Full Reviews+ Buyer’s Guide)

Best Simpson Pressure Washer Reviews

Last Updated on February 25, 2022

If you are looking to buy a high-performance power washer at a low price then – Simpson Cleaning – the brand is the best choice in the market. In the last 16 years, Simpson is one of the few companies which manufacture their small engine products 100% by hand.

Simpson cleaning is one of the pioneers in the cleaning industry. They have earned the trust of big brands such as Honda, DeWalt, and Briggs & Stratton. You will feel the powerful performance of Honda engines in these pressure washers.

There is a wide range of options that come across as soon as you search for the best Simpson pressure washer. And each one of them holds a unique property which makes it ideal for certain tasks. For example, you might not require a high power Simpson pressure washer for cars than you might for cleaning pavements or walkways. So we’ve picked some of the top-rated pressure washers that will assist you perfectly in various cleaning tasks.

Best Simpson Pressure Washer Reviews

Best Simpson Pressure Washer Comparison

Simpson Cleaning MSH31252.5 GPM3200 PSI Check Price
SIMPSON  PS3228 PowerShot2.5 GPM3300 PSI Check Price
SIMPSON Cleaning MS60763-S2.4 GPM3100 PSI Check Price
SIMPSON Cleaning PS4240 PowerShot4.0 GPM4200 PSI Check Price
SIMPSON Cleaning ALH34252.5 GPM3600 PSI Check Price
SIMPSON Cleaning ALH4240 4.0 GPM4200 PSI Check Price
SIMPSON Cleaning CM609122.0 GPM2400 PSI Check Price

1. SIMPSON Cleaning MSH3125 MegaShot – Most Affordable Gas Pressure Washer

Read Customer Reviews Here »

SIMPSON MSH3125 MegaShot is the most powerful pressure washer available in the market. It is driven by a Honda GC190 engine that generates 3200 PSI of water pressure which can help you clean any type of surface. Apart from its premium residential engine, this Simpson MegaShot comes with a maintenance-free OEM Technologies axial cam pump which derives power directly from the engine.

The entire power washer is protected under a string steel frame and rides on 10-inch pneumatic wheels that make it easy for the user to carry it around the house or workplace. Its 0°, 15°, 25°, 40°, and soap nozzles are included for quick and easy changes while cleaning various things at the same time. While buying this best Simpson pressure washer you are also going to get a 25′ MorFlex Hose that helps you reach hard corners.

The spray gun delivers 2.5 GPM of cleaning water force with control and comfort. If you are planning to clean your outdoors, decks, patio, or backyard in your home then it is the most powerful and affordable option.

Our Observations

Why Simpson MSH3125 MegaShot is worth buying?

  • Extremely easy to start even though it features the traditional pull start. In just one pull you can get this power washer to work.
  • It offers 3200 PSI output that is ideal for heavy-duty cleaning.
  • A versatile power unit that is ideal for paint prep, cleaning house/driveway, cleaning patio/furniture, etc.
  • Powder-coated steel frame tube for maximum support and durability.
  • Quick-change nozzles for effective cleaning.
  • Backed by 2-year Honda GC consumer warranty on engine, 5-year limited frame, and 1-year limited warranty on pump.

2. SIMPSON  PS3228 PowerShot – Powered By High-Performance Honda GX200

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People who love to travel with their friends and family in an RV will love Simpson PowerShot pressure washer with 3300 PSI of power. This powerful unit is capable of cleaning your truck/RC/camper easily and effectively. The credit for such an impressive performance is divided among powerful Honda GX200 engine and AAA industrial triplex plunger. With these two high-quality parts along with many others, you can perform heavy-duty cleaning in a short span.

To ease the power cleaning of your RV, Simpson PS3228 provides 5 quick-connect nozzle tips. You can easily interchange the 0º, 15°, 25°, 40°, and the soap nozzle in seconds. These different angle nozzles help you to clean different and delicate parts of RV/camper easily. In addition to metal nozzle tips, the 25-feet MorFlex hose provides a great range while cleaning. Plus, the high-quality hose is non-marring, kink, and abrasion-resistant. You’ll not have to look for a new hose after power washing a couple of times.

Our Observations

Why buy Simpson PS3228 PowerShot?

  • Welded steel frame for years of durable performance.
  • Best pressure washer for RV, camper, and trucks for the money.
  • Industrial-grade engine with AAA industrial triplex plunger pump with PowerBoost technology.
  • Threaded M22 connection on 25 ft. long MorFlex hose.
  • 10-inch pneumatic wheels for easy movement and storage.
  • Backed by 3-year limited Honda engine warranty, 10-year limited frame, and 5-year limited pump warranty.
  • Advanced oil seal technology paired with ceramic or ceramic coated pistons for extended seal life.

3. SIMPSON Cleaning MS60763-S MegaShot Gas Pressure Washer Powered by Kohler RH265, 3100 PSI at 2.4 GPM

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A good pressure washer for home is the one that is easy to use and drag around. And if you wish to see your pavers and pool area all clean then consider buying Simpson MS60763-S MegaShot gas pressure washer. Instead of Honda, it features Kohler RH265 engine that works best for residential use. With 5 quick-connect nozzles and 25′ MorFlex hose, you can easily clean large pavements, walkways, and driveways without moving the unit constantly.

In addition to impressive 3100 PSI at 2.4 GPM, Simpson MS60763-S features 12-inch never-flat wheels. This means you can easily roll the unit over rough bumpy grounds without the fear of tires getting flat. Unlike many other Simpson power washers, this is a lightweight unit weighing nearly 63 pounds. This means you can easily maneuver the MegaShot from deck to patio, garage to driveways without straining out your arms and back.

Our Observations

What makes Simpson MegaShot MS60763-S worth the investment?

  • Simple and straightforward assembly.
  • Reliable OEM axial pump that is great for residential use.
  • Best gas pressure for patio, cleaning small sideways, and paint prep.
  • Abrasion-resistant hose equipped with M22 connection.
  • Features large 12-inch never-flat wheels for easy mobility.
  • Ergonomic spray gun with 5 nozzle attachments delivers 2.4 GPM with comfort and control.

4. SIMPSON Cleaning PS4240 PowerShot Gas Pressure Washer Powered by Honda GX270, 4200 PSI at 4.0 GPM

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Experience commercial pressure washing with Simpson PS4240 Powershot. With 4200 PSI at 4.0 GPM, this little beast can thoroughly clean grease, gunk, mold, and mildew easily. Fill in the gas, set the correct nozzle, and begin power washing. In just one wash you will see the mold and mildew coming off the walls, corners, side of pavements, etc. Just like above Simpson units, this gas pressure washer also comes with 5 easy-connect nozzles with 0º, 15°, 25°, 40° angle, and a soap connect.

Powerful GX390 Honda engine with oil alert system along with AAA industrial triplex plunger pump helps you clean various surfaces easily. The pump features PowerBoost technology that ejects the water at constant pressure until the machine remains on. This results in effective and even washing in one go. In addition to industrial-grade components, Simpson PS4240 features a 50-feet monster hose so you can easily clean a large surface without stopping the machine or moving the device multiple times.

Our Observations

Why Simpson PS4240 PowerShot is worth buying?

  • Heavy-duty commercial-grade performance.
  • It comes with a 50-ft monster hose to clean a large area effectively.
  • Large 13-inch pneumatic tires, four-ply construction, suitable to use on various terrains.
  • AAA axial pump with advanced oil seal technology.
  • Impressive warranty on the power washer. 3-year limited on Honda engine, 5-year limited on the pump, and 10-year limited on frame.
  • 4200 PSI at 4.0 GPM is ideal for prosumers and professionals alike that do professional patio cleaning, graffiti removal, etc.

5. SIMPSON Cleaning ALH3425 Aluminum Gas Pressure Washer Powered by Honda GX200, 3600 PSI @ 2.5 GPM

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Steel frame could be heavy to maneuver which can be problematic for the elderly and people with weak arms. So instead of steel, Simpson ALH3425 gas power washer features an aluminum frame. This aircraft-grade aluminum frame with brushed extruded aluminum tubing is not only lightweight but also durable. However, the weight of the unit is nearly 80-pound which is not considered actually light but for a powerful Honda GX200 engine and 3600 PSI, the use of aluminum reduces the overall weight dramatically.

Low oil might result in engine damage or in the worst case, failure. But thanks to AAA™ industrial triplex pump with oil alert functions that lets you monitor the oil levels easily. Other than that, it features a flexible polyester-braided hose that measures 35-feet long. The length of the hose is big as compared to most of the power washers in the market which lets you work comfortably.

Our Observations

Why buy Simpson ALH3425?

  • Crafted from 100% aircraft-grade aluminum which accounts for its lightweight than most of the steel frame units.
  • Ergonomic spray gun with 5 quick-connect nozzles.
  • A long 35 feet hose with the non-marring interior and abrasion-resistant exterior.
  • 10-inch pneumatic tires absorb shock while maneuvering it over rough or bumpy terrain.
  • This Simpson gas pressure washer is ideal for paint prep, RV, camper, auto, house, and driveway.
  • The ALH3425 is adjustable both on the pump and on the handle.
  • Uses standard unleaded gas that is easily available.

6. SIMPSON Cleaning ALH4240 Aluminum Gas Pressure Washer Powered by Honda GX390, 4200 PSI @ 4.0 GPM, Red

Read Customer Reviews Here »

Pumps are considered an important part of any pressure washer. And why not, after all, they are responsible for generating and maintaining proper pressure while the engine remains on. While it is okay to settle for regular pumps for occasional and light use, but a heavy-duty cleaning requires robust pumps. And you’ll not be disappointed by the powerful performance of CAT industrial triplex plunger pumps. These pumps come already lubricated and are great for long hours of use.

Instead of steel, Simpson ALH4240 gas power washer features an aluminum frame. This ultra-lightweight yet durable aircraft-grade aluminum helps to cut down the overall weight of the machine. However, this beast still weighs around 100 pounds which is quite difficult to maneuver for people with weak stamina and elderly. Robust Honda GX engine along with 50′ hose accounts for both added weight and solid performance of the machine. You can do all sorts of heavy-duty residential and medium-grade commercial cleaning easily.

Our Observations

What makes Simpson ALH4240 worth the investment?

  • Features CAT pumps™ that are lubricated, cooled high and low-pressure seals for extended pump life.
  • Just like the above units, Simpson gas washer comes with 5 different nozzles from heavy-duty pinpoint to low-pressure wide fan cleaning.
  • Best Simpson pressure washer for concrete driveways, pavements, etc.
  • A 50-feet monster hose with durable steel braided interior.
  • 13’inch pneumatic tires that absorb shock and roll easily over various terrains.
  • 100% aircraft-grade aluminum frame.
  • Backed by limited Honda GX commercial engine warranty, 2-year limited pump, 10-year frame, and 5-year limited pump warranty.

7. SIMPSON Cleaning CM60912 Clean Machine Gas Pressure Washer Powered by Simpson, 2400 PSI at 2.0 GPM

Read Customer Reviews Here »

You do not have to invest all the fortune in a heavy-duty commercial power washer if you’re only going to use occasionally. Instead of going for a $1000 pressure washer, consider buying Simpson CM60912 which is best for residential use. This compact pressure washer stores easily in the garage and is easy to maneuver as well. Thanks to its small upright design with good wand location and steel handle on top that makes it easy for the elderly to maneuver the unit. Speaking of the handle, you can even fold it down for convenient storage.

Instead of 5 nozzles, Simpson CM60912 gas pressure washer includes three spray nozzles. There’s a 0-degree, 25-degree, and a soap tip that handles a majority of residential cleaning tasks well. Plus, an onboard detergent tank lets you thoroughly clean a moldy surface. With maintenance-free OEM technologies axial cam pump and 149cc Simpson OHV engine, you can effortlessly provide new shine to your car without waiting in car-washing queues.

Our Observations

Why Simpson CM60912 is worth buying?

  • One of the top-rated gas power washer for car and patio.
  • Lightweight unit(approx. 43 lbs) is easy to maneuver around.
  • Foldable steel handle for compact storage when the machine is not in use.
  • Equipped with a 149cc Simpson OHV engine and OEM technologies axial cam pump that is ideal for a wide range of residential cleaning.
  • Features 6’inch never-flat tires that roll over thorny, rough, or bumpy terrains without deflation.
  • Includes a 1-gallon on-board soap tank absolutely free.

Simpson Pressure Washer Parts and Accessories

Axial Vs. Triplex Pumps

You should always decide what type of pump you want in your pressure washer. Axial cam pumps wear downs quickly because they are directly driven by the engine which means they spin at the same speed as of engine. However, Triplex plunger pumps are one of the most suitable pressure washer pumps. They are not directly driven and offer better performance.

OEM Replacement Pumps.

Technically you are required to replace axial cam pumps and repair triplex plunger pumps. You can get your hand on these pumps online or by it directly from Simpson’s parents’ company subsidiary brand “AAA”.

As a general rule axial cam pumps are replaced not repaired and triplex plunger pumps are repaired not replaced.

Nozzles and Spray Tips

Different nozzles or spray tips are necessary to tackle cleaning jobs of various surfaces. For example, you need a wide nozzle to clean a large camper or RV while a 0-degree spray tip is perfect for tough stains on concrete or metal surfaces. So Simpson power washer provides with 5 types of nozzle, i.e, 0º, 15°, 25°, 40°, and the soap nozzle with most of its models. You can easily interchange them to clean the area effortlessly.

Pump Saver

It is an important accessory that goes into the pump and helps you store the power washer in a cold climate or during winters. If you are planning to store for a long period of time then you should have a pump save which only cost around $10-$20 that you buy from any power equipment store.

Fuel Stabilizer

Cold climate has never been a friend for machinery which is why having a fuel stabilizer is essential to protect your Simpson pressure washer.

Brass Coupler

A brass coupler is a link between your high-pressure hose and pressure washer. It is a very important washer accessory that you should buy and avoid synthetic coupler as they tend to blast or leak. Make sure that the size of the brass coupler is perfect for both hose and washer.

O-Ring Kit

O-ring is the accessory that fits at the beginning of your Simpson pressure washer hose. It makes sure that the water does not spill or leak while in use. If you get a cracked O-ring then go through the manual to understand the right size that can fix your problem.

Extension and Replacement Hoses

Typically you will get a 25 feet hose with our model, however, if you steel need longer hose then you can upgrade it with a 50 feet unit. They come in various features supporting the power washer PSI capability. Here are some of the replacements that you can try.

Wand Extension

If you are going to clean higher floor windows then having a wand extension can really simplify your job. In addition to that, you can also get an extension for cleaning gutters, this way you won’t have to buy ladders or go down the gutter to clean them. Professional cleaning services suggest that wand extensions are a safer option than a ladder.

User Manual

Unlike other brands, the Simpson pressure washer manual is very well sorted and planned in such a way that even a dummy can understand the step-by-step instructions on how to operate the washer. The manual contains in-depth instructions on How to operate? How To maintain, and a complete troubleshooting guide. You can access the Simpson brand full list of manuals and download them according to the model number.

Winterizing Your Pressure Washer

If you are going to store your power washer for more than 30 days then you will have to clean it and remove all the oil. Winterizing power washer is very common during winters where you remove all liquids and then fill them with a solution to protect the engine, machinery, and pump from the chilling cold weather. To ensure that your washer engine works efficiently after winter, don’t forget to empty the water system to prevent cracks during winters.

Excellent Support And Maintenance

Though most small engine companies try to shed customers after sales, Simpson has done just the opposite. And because of their impeccable brand support and low maintenance cost on the pressure washer, has made them one of the most trusted brand.

If your power washer is not starting? or you are having problem winterizing it, then just dial the customer support number given in the instructional manual and their executives will help your step by step to solve your problem.

If you don’t like corded washer then try these cordless pressure washer for you home. And if you have wanted to do heavy cleaning then buying a 4000PSI washer will do a perfect job.


It is infeasible to scrub your dirty pavement with a brush and soapy water. And similar to pavers, there are a lot of cleaning tasks that take elbow grease if you decide to use a brush. But why think of extra efforts when you can easily clean various surfaces with Simpson pressure washers. Simpson is a well-known brand for manufacturing power washers for years now. Their robust built and durable performance has won the hearts of many people. Now it’s your time to decide the best Simpson power washer to turn burning cleaning time into more fun.

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