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SIMPSON Cleaning MSH3125 3100 PSI at 2.5 GPM gas pressure washer powered by HONDA GC190

4.5 out of 5 stars 7,088 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Pressure Washers by Simpson Cleaning

List Price: $399.00 Details
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About this item

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  • Honda GC190 Premium residential engine; Does Not Ship to California
  • Maintenance-free OEM Technologies axial cam pump
  • Note : Keep Maximum Fuel level 1/2 Inch(12. 7 mm) below bottom of filler neck to avoid fuel spillage
  • Welded Steel construction frame. Pump/Hose Connection: Threaded M22 connection
  • 10'' Premium pneumatic wheels
  • 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and soap
  • All pressure washers are 100% functionally tested in factory and may contain minimum residual fuel/oil or fuel odor

Frequently bought together

  • SIMPSON Cleaning MSH3125 3100 PSI at 2.5 GPM gas pressure washer powered by HONDA GC190
  • +
  • Simpson Cleaning 80165 Scrubber 15" Steel Pressure Washer Surface Cleaner for Cold Water Machines, 1/4" Quick Connection, Rat
  • +
  • Gilmour 6 Inch Faucet Kink Protector FX1C Teal
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From the manufacturer

MSH3125 ps3228 ALH3425 CM60912 ALWB60828
MegaShot PowerShot Aluminum Series Clean Machine Water Blaster
PSI 3200 3300 3600 2400 4200
GPM 2.5 2.5 2.5 2.0 4.0
Pneumatic Tires
Accessory Bundle Options
Engine Honda Honda Honda Simpson Honda
Best for Residential Use Commercial Use Commercial Use Residential Use Commercial Use

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SIMPSON Cleaning MSH3125 3100 PSI at 2.5 GPM gas pressure washer powered by HONDA GC190
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Customer Rating 4.5 out of 5 stars (7088) 4.6 out of 5 stars (22) 4.5 out of 5 stars (1591) 4.7 out of 5 stars (6559) 4.4 out of 5 stars (1266) 4.4 out of 5 stars (421)
Price $379.00 $189.99 $591.48 $283.97 $309.00 $319.00
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
Sold By Amazon.com Lanbter Amazon.com Amazon.com Amazon.com Amazon.com
Item Dimensions 26 x 18 x 35 inches 34 x 21 x 24 inches 21 x 19.5 x 39 inches 34 x 20.5 x 24 inches 22 x 13.5 x 29.25 inches
Item Weight 65.00 lbs 63.00 lbs 63.00 lbs
Power Source Gasoline Corded Electric Gasoline Gas Powered Gasoline Gas Powered

Product description

The SIMPSON MegaShot 3200 PSI at 2.5 GPM is ideal for use on siding, driveways, cars, RV's, paint prep and more. This is a perfect option for homeowners, because it’s lightweight, easy to maneuver and can be transported by one person. You’ll get optimum performance with minimal effort. The MSH3125 is equipped with a HONDA GC190 engine, reliable OEM axial pump, 25-ft kink & abrasion resistant hose, ergonomic spray gun and 5 stainless steel Quick-connect nozzles.

Created for the home and shop, the SIMPSON MegaShot series is perfect for the “Do-it-Yourselfer” looking for maximum performance with minimal investment.  The MegaShot Series is simple to use and great for cleaning decks, patios, house siding, outdoor furniture, and prepping home exteriors for painting. Its compact design is lightweight and small enough to be easily transported by one person. The MegaShot Series is designed for optimum performance in the harshest environments, and renowned for being consistently easy to start.

2 Year limited HONDA consumer engine, 1 year limited pump, 5 year limited frame and 90 day accessory
1 Year limited pump warranty
5 Year limited frame warranty
90 Day limited accessory warranty

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
7,088 global ratings
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Top reviews from the United States

Reviewed in the United States on April 23, 2018
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1.0 out of 5 stars Pump is junk.
By Todd K. on April 23, 2018
This seemed like a nice little washer until not long outside of the warranty the pump essentially blew apart.
I spoke to Simpson customer service and they essentially said i was SOL. Because of the nature of the failure they said I could take it to a service center to have it inspected as being a manufacturers defect or not, then it would be sent to a separate claim office where they would do their own review to determine whether they would pay for the repair.
This is not my personal washer, it was purchased for the company I work for, and now we are down a washer. I really don't have the time to wait on their multiple stage forensic investigation into what is clearly a manufacturing issue. The metal on the pump casing is just junk. I need a well running pump now and in the future, so I will not risk buying another Simpson pressure washer if they will not step up and take care of this type of situation.
I explained this to customer service, and that they could potentially be losing a big/long term customer as we are a growing company, but like most companies seem to operate nowadays they told me there was nothing they could do aside from sending my washer (which I will go ahead and fix myself) out on the road for an undetermined length of time and outcome.
Buy at your own risk.
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Reviewed in the United States on June 11, 2016
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1,134 people found this helpful
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Reviewed in the United States on April 18, 2017
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311 people found this helpful
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Reviewed in the United States on November 11, 2016
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5.0 out of 5 stars Don't Hesitate to Buy This Simpson!
By linux4me on November 11, 2016
I thought I should post a review to offset some of the out-of-date information I read in the reviews that made me hesitate to buy the MSH3125-S. Fortunately, none of them turned out to be true for the version of the machine that's currently shipping.

I've had the MSH3125-S long enough to put about five hours on it, and I've used it on wood decking, stone walkways, painted steel, painted wood siding, painted steel siding, plastic window trim, and concrete. One of the reasons I picked it was because it has 10" pneumatic tires, and my property is "challenging" for anything less. Although they might be fine on a nice, paved driveway or regular urban or suburban property, the brands with solid plastic tires and lightweight frames wouldn't last long here. The frame the Simpson is built on looks very sturdy, balances the Honda engine very well, and is very easy to pull across difficult terrain, including gravel drives, uneven stepping stones, and dirt paths. It has a solid, 5/8" axle that will make replacing the wheels/tires easy when the time comes. I read that some users felt the handle is too low; I didn't find that to be a problem, but instead of pushing the machine, I walk beside it and pull it along with one hand. That works much better. The handle is at the right height and the tires manage the bumps and ridges much better than if I were to try to push it.

Simpson seems to have solved the problem with the spray nozzles vibrating out of the holder on the machine. That hasn't happened to me.

Draining the oil isn't a problem if you use the correct drain plug. The important thing to realize is that there are two drain plugs on the Honda GC190, one on the same side as the oil fill (don't use that one!), and one on the opposite side on the fuel tank- and air cleaner-side of the engine. It's the latter that Simpson intends for you to use, and they've provided a cut-out in the mounting plate to drain the oil into a pan placed beneath the machine. You can make oil changes even more convenient. I recommend getting a [[ASIN:B000PDN6R6 Drainzit HON1012 12mm Oil Changing Aid for Honda GX240, GX270, GX340, GX390, GC160]] (it also fits the GC 190) to replace the drain plug before you add the oil to the engine the first time. You can route the hose inside the frame (see photo) and drain the oil right into a container placed in front of the machine.

I found myself using the 15-degree spray nozzle--which most of the other brands of pressure washer I considered don't include--more than any other size. It was the best size to clean the moss off my stone walkway and concrete. The 25-degree wasn't powerful enough, and the 0-degree was too powerful and too narrow to be fast.

I didn't find the lack of a detergent tank to be a drawback, but a plus. For one thing, most detergent tanks are too small to really be much help. This pressure washer, like most, uses one gallon of detergent for every seven gallons of water. The detergent tanks on most pressure washers aren't large enough to last very long. They also must be emptied at the end of the season and cleaned, which wastes some detergent, makes a mess, and is yet another maintenance job. With the MSH-3125-S, I can use a much larger container, or just use the container the detergent came in. However, the bottom line for me is that I don't even need detergent. The MSH3125-S is powerful enough that it performed all the cleaning jobs I needed with water alone.

The high-pressure hose the Simpson comes with appears to be very well-made and I didn't have any problem with it kinking. I'm sure you could make it kink if you pulled hard enough on a loop (which you aren't supposed to do with a high-pressure hose, anyway), but if you lay the hose out before you start work like you're supposed to, it works very well. The slippery cover means it's easy to pull behind you and easy to rinse off when you're done.

Another nice thing is that the Simpson comes already assembled. Other than the typical set-up tasks like oil, fuel, etc. pretty much all you need to do is turn the handle around and check the tires' air pressure.

Finally, I like the fact that the Simpson is compatible with a variety of aftermarket accessories, and that original parts for it are easily available here on Amazon and at your local big-box hardware store.

If you need a sturdy, reliable, powerful pressure washer, especially if you live on a rural property, don't hesitate to buy the Simpson MSH3125-S.
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Top reviews from other countries

Jon C.
5.0 out of 5 stars After reading countless bad reviews, I still went ahead and purchased this ...
Reviewed in Canada on May 6, 2018
Verified Purchase
25 people found this helpful
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Jason B.
5.0 out of 5 stars Great machine.
Reviewed in Canada on May 15, 2019
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11 people found this helpful
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Kyle Quinn
1.0 out of 5 stars Junk
Reviewed in Canada on November 11, 2019
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5 people found this helpful
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Sunil
5.0 out of 5 stars Freaking loud.
Reviewed in Canada on June 5, 2019
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6 people found this helpful
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Greg M
3.0 out of 5 stars Started leaking after only one season of use. Difficult to find a local service agent
Reviewed in Canada on August 5, 2019
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5 people found this helpful
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