0879399000959

Simpson

Model # MSH3125-S

Internet # 203177499

Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer

$399.00 /each
  • HONDA GC190 OHC premium Engine
  • Maintenance-free OEM Technologies
  • Pro-style steel spray wand with 5 quick connect nozzle tips

Frequently Bought Together

Product Overview

Especially created for the home and shop, the Simpson MegaShot series is perfect for the "Do-it-Yourselfer" looking for maximum performance with minimal investment. 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. Equipped with premium Honda OHC Engines that are built with high-quality components, designed for optimum performance in the harshest environments and renowned for being easy to start, consistently. OEM Technologies axial cam pumps with patent pending PowerBoost technology provide higher pressure at the nozzle resulting in greater impact and cleaning performance.

California residents: see  Proposition 65 information

  • Honda GC190 OHC premium residential - engine oil is included
  • Maintenance-free OEM technologies axial cam brass head pump with powerboost technology which provides higher pressure at the nozzle
  • Welded frame construction and 10 in. premium pneumatic tires
  • 1/4 in. x 25 ft. morFfex high pressure hose is kink and abrasion resistant, provides flexibility and is equipped with easy twist-on connectors
  • Pro-style steel spray wand with 5 quick connect nozzle tips- 0 Degrees , 15 Degrees , 25 Degrees , 40 Degrees and soap applicator nozzle
  • Downstream detergent injection system for use of cleaners
  • Ergonomic spray gun with safety lock-out
  • Convenient on-board accessory storage for spray gun/wand, high pressure hose and nozzles
  • Choose the best nozzle that fits your pressure washer needs:

    Pressure Washer Nozzle Selection Guide

Info & Guides

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Specifications

Dimensions

Assembled Depth (in.) 
34.75 in 
Assembled Height (in.) 
23.25 in 
Assembled Width (in.) 
21 in 
Hose Diameter (In.) 
.25 in 
Hose length (in.) 
300 

Details

CA (CARB) Compliant 
CARB Compliant 
Commercial 
No 
Commercial / Residential 
Residential 
Detergent tank 
No 
Engine Displacement (cc) 
187 
Engine Make 
Honda 
Engine Type 
GC190 OHC 
Features 
Chemical/detergent injection,Quick connect tips 
Foldable handle 
No 
Fuel tank capacity (gallons) 
.475 
GPM 
2.5 
Hose Material 
Reinforced 
Included 
Onboard storage,Wheels 
Maximum Pressure (PSI) 
3100 
Number of tips included 
Onboard storage 
Yes 
PSI Range 
2600-3199 PSI 
Pressure Washer Power Type 
Gas 
Product Weight (lb.) 
60 lb 
Pump Brand 
Other 
Pump Type 
Axial 
Reconditioned 
No 
Returnable 
30-Day 
Translucent fuel tank 
No 
Water capability 
Cold 
Wheels 
Yes 

Warranty / Certifications

Manufacturer Warranty 
Limited Warranty – Consumer Use - 2 Years on HONDA GC engine, 1 Year on frame and pump components, 90 Days on spray accessory items 

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Customer Questions & Answers

67 Questions215 Answers

Customer Questions & Answers

Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer
Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer

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9 answers

Can I add an injector downstream to use bleach or spray a deck cleaner?

This question is from Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer
Asked by
Carlisle PA
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May 27, 2015
Have an area of my house that's hard to reach and needs a stronger cleaner to get it clean!
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Answers (9)

Asked by
Pennsylvania
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June 21, 2016
Answer: 
I wouldn't see why not? I see the professionals use a downstream injector with bleach and have no problems. I don't think people realize with a downstream injector you're injecting chemicals after the pump. No bleach is going into the pump..
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Asked by
Marlton, NJ
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Home Improvement Profile: DIYer
May 12, 2016
Answer: 
Depending on what you're doing you can use Oxyclean or equivalent instead of bleach. That can be wiped or spread on your target and then pressure washed off. Found good results and it is safer and better for the environment.
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Asked by
STL
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Home Improvement Profile: Professional
April 30, 2016
Answer: 
Yes, its like anything else once your done run your normal detergent through the system, by doing this your purging out any residue that might be left. I have been doing this and have never had a problem with my power washer, but if you still don't feel comfortable use a 50/50 mix and repeat the process above by purging your system.
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Asked by
Congress, az
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Home Improvement Profile: DIYer
October 28, 2015
Answer: 
It is advised not to use bleach. I would apply the bleach with a spray bottle at best. Home Depot sells a deck cleaner that is meant to be used with that machine.
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Asked by
Palmetto Florida
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Home Improvement Profile: DIYer
September 8, 2015
Answer: 
I would not run any bleach through this machine. Try to pre treat the area with a solution of 50% water and 50% bleach, give it a few minutes then use pressure washer to spray off. You may need a ladder to get to those hard to reach areas. I had trouble with high areas of my pool cage and this trick worked like a charm.
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Asked by
Palmetto Florida
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Home Improvement Profile: Professional
July 22, 2015
Answer: 
This unit s a prosumer unit, but not advisable to run bleach through the system. I have a separate bottle of a bleach mixture of 50/50. Bleach and water. I spray it on about 5 to 10 minutes prior to hitting it with the pressure washer.
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Asked by
Brunswick, Ga
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July 16, 2015
Answer: 
yes it comes with a chemical injector tip that will siphon detergent and add it to the low pressure stream
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Asked by
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June 24, 2015
Answer: 
I think bleach is bad for the pump
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Asked by
Houma La.
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Home Improvement Profile: Other
June 6, 2015
Answer: 
never use bleach in your washer. It is corrosive and can damage the washer. There are many solutions on the market that are made for this purpose.
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8 answers

does this include a detergent siphon hose?

This question is from Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer
Asked by
Southern CA
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June 21, 2015
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Answers (8)

Asked by
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July 19, 2016
Answer: 
Yes. Make sure you use the correct nozzle when using detergent hose...the blue one. :)
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Asked by
Chicago
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Home Improvement Profile: Professional
July 19, 2016
Answer: 
yes. it comes with a drop in chemical hose and filter.
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Asked by
Congress, az
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Home Improvement Profile: DIYer
October 27, 2015
Answer: 
Yes, it come with a detergent siphon hose and it is long enough to get the job done easily. It slips on to a barbed connection and it call be pulled off easily when not in use. It stays in place during use.
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Asked by
Palmetto Florida
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July 21, 2015
Answer: 
Yes, it includes a siphon hose, and works very well using the black nozzle.
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Asked by
Brunswick, Ga
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July 16, 2015
Answer: 
yes a clear siphon hose for the chemical injector is included, I found that attaching a small weight to the detergent siphon hose will keep it submerged better in the bucket of solution.
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Asked by
Eugene Oregon
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Home Improvement Profile: DIYer
July 3, 2015
Answer: 
Yes.
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Asked by
Boulder CO
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June 29, 2015
Answer: 
Yes
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Asked by
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June 24, 2015
Answer: 
Yes
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7 answers

Is the panel that holds the nozzles and has the hose hook, metal or plastic?

This question is from Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer
Asked by
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May 13, 2016
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Asked by
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July 19, 2016
Answer: 
If I recall they are both plastic. They seem durable to me though. I was not unhappy with them.
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Asked by
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July 19, 2016
Answer: 
Metal panel. Seems durable to me. There is a rubber piece in the hole where the nozzles fit to keep them from falling out. I hauled this in my trailer and didnt have any nozzles fall out so I was happy with it.
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Asked by
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July 19, 2016
Answer: 
Metal to metal connection (brass). There is a plastic piece on the end of the nozzle and each nozzle has a different color. The plastic piece is durable and I think it's there just so you have plastic on the end of the sprayer in case you bang it into something.
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Asked by
Chicago
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Home Improvement Profile: Professional
May 16, 2016
Answer: 
this panel is made of metal
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Asked by
Williamstown, NJ
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Home Improvement Profile: DIYer
May 15, 2016
Answer: 
Metal
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Asked by
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May 14, 2016
Answer: 
It is metal.Great quality steel
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Asked by
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May 14, 2016
Answer: 
Metal/sturdy
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7 answers

can you wash your car safely

This question is from Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer
Asked by
San Antonio
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May 25, 2015
i need this for deck cleaning but would also like to use to wash our cars with. Can we do this safely with this unit?
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Answers (7)

Asked by
Congress, az
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Home Improvement Profile: DIYer
October 28, 2015
Answer: 
If you use the lower pressure nozzle you can safely wash you car. The high pressure nozzle will strip off the paint. Start with the lowest pressure nozzle and work you way up to what you feel is comfortable when you wash your car. If you start to see your paint fading then switch back to the low pressured nozzle. I use the low pressure nozzle on my truck. Better safe than sorry.
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Asked by
Palmetto Florida
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Home Improvement Profile: DIYer
September 8, 2015
Answer: 
Yes, just be careful on your nozzel selection and how close to the paint finish you are.
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Asked by
Brunswick, Ga
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July 16, 2015
Answer: 
start with the lowest pressure tips. the high pressure tips are quite powerful and should be used only on non-painted surfaces. Lower pressure should work fine.
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Asked by
Eugene Oregon
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Home Improvement Profile: DIYer
July 3, 2015
Answer: 
with 3100psi I wouldn't. Even with the wide angel wand that's just too much pressure for a vehicle.
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Asked by
Lewes, DE
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June 10, 2015
Answer: 
I've used it on cars many times. I use the 25 degree nozzle, keep it moving.
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Asked by
Houma La.
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Home Improvement Profile: Other
June 6, 2015
Answer: 
it is excellent for car washing but make sure you use the same tip you use for painted surfaces, the black or white tip to reduce the pressure.
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Asked by
Southside
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May 27, 2015
Answer: 
It is great for car washing! I especially like the soap dispensing hose. Its like having a car wash in your own driveway.
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Customer Reviews

Rated 4.4 out of 5 by 615 reviewers.
Rated 1.0 out of 5.0 by Leaking oil I have used it 2 times and it worked great. I went to use it a third time and found a puddle of oil underneath. Put some dry paper down to see where it was coming and found it leaking from 2 places. I purchased it about a month ago. Hopefully I can return it. July 1, 2016
Rated 4.0 out of 5.0 by Low and loose handle Seems like a sturdy enough machine. My only quibbles are that the handle, that also supports the power washing wand, is very low. It requires you to bend well over to maneuver the machine around and should be at least 18" to 24" higher. Also regarding the handle, the booklet shows that there are screws with a knurled knob to secure the handle to the lower frame. This apparently has been discontinued and a simple snap connector is used. This may be cheaper to produce - by maybe 20 cents ?, but leaves the upper handle very loose and wiggly - and did I mention LOW. Anyway, it detracts and cheapens what seems like an overall decent piece of equipment June 21, 2016
Rated 4.0 out of 5.0 by Powerful We enjoy having our powerwasher. This one replaced one almost like it and it has worked out just fine. My biggest complaint about the gas models is that they are difficult to start. The sprayer should be running on in the one position which makes it harder to do two things at once so we use a clamp to hold it on while starting. The starting is still harder than I would like. After about two pulls my arm is done but my husband does have a problem with it. Also, the holder for the tips is cute but it doesn't work well- the first tip shook out within the first 10 minutes. I would put them in a bag or you will loose them! July 5, 2016
Rated 5.0 out of 5.0 by Honda GC190 MegaShot 3,100 psi 2.5 GPM Gas Pressure Washer Had it delivered to my local Home Depot store (to make sure no one steals it off my front porch). The box and pressure washer where in perfect shape. Just followed the quick start instructions (also read the instruction booklet from front to back while drinking my coffee at StarBucks - take time to read the booklet because there are some very important operating instructions you need to follow or you can damage your pressure washer and yourself). It started in two pulls and I spent the next hour power washing the side of my house (getting ready to paint it). This has plenty of power and is easy to use with just one person. June 24, 2016
Rated 5.0 out of 5.0 by Easy to Start and Use! I purchased this power washer to clean my driveway and was very pleased with the results. I had an old electric model with an !,800 psi power rating that just did not produce the results. What a difference with The Simpson 3200 psi model... It was very easy to start and use and handled the job easily! The power nozzels come out of the holder easily so you need to be careful or they will fall out on their own. July 21, 2016
Rated 5.0 out of 5.0 by Have waited a long time for this! After much research, checking ratings and reviews, I finally settled on this pressure washer. I also bought the surface cleaner. I was able to do my driveway, patios and walkways in a fraction of the time it would have taken with my old pressure washer. It maneuvers easily, has great pressure and easy change tips. So far, very happy with my purchase. July 23, 2016
Rated 1.0 out of 5.0 by Missing parts Bought this instead of the Generac because of the recent negative reviews for Generac detailing broken or missing parts upon opening the box. This Simpson was missing the water input filter and the manual and quick start guide were for two different models. It's been a tedious process all day to get the support person the information she needs in order to send me the missing part and correct manual. At one point, she tried to get me to order the missing part myself which would have entailed creating yet another online account with another parts company. Frustrated that I'm having to write about sloppy quality control in the shipping department rather than an assessment of the product. June 28, 2016
Rated 5.0 out of 5.0 by Excellent Value & Price! Unit arrived in perfect condition and set up was simple. a cinch. Six years of dirt, mildew & storm crud on my white siding easily blasted away using an all purpose power washer cleaner and only the 1000 PSI tip! The Honda engine started on the 3rd easy pull and with foam hearing protection in the noise level was low. Simpson actually makes cleaning tasks simple & fun. Extremely pleased with the value & quality! July 19, 2016
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