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The Simpson megashot 3100 psi (gas-cold water) pressure washer with honda engine is available for purchase today.

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Simpson Megashot 3100 PSI (Gas-Cold Water) Pressure Washer With Honda Engine

(Based on expert analysis, manufacturer ratings and customer reviews)

4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5
44 Reviews
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  • Features
  • Specs
  • 7
    Q&A 
  • 44
    Reviews
  • Articles
  • Shipping
  • Accessories

Grade
Style
Water Pressure
3100
PSI
Water Flow
2.5
GPM
Cleaning Speed
7750
Cleaning Units
Engine
Honda GC
Need Help? Ask Our Snow Blower Experts.
Honda GC190 Engine
Reliable engine starts easily, runs quietly

Maintenance-Free Brass Axial Cam Pump
Robust 2.5 GPM cleaning performance

Ergonomic Spray Gun
Work longer with less fatigue
Quick connect steel lance accepts standard nozzles & accessories

5 Stainless Steel Quick Connect Nozzles
0°, 15°, 25°, 40° & soap applicator nozzles

Siphon Tube Chemical Application
Just drop tube into pressure washer safe detergent

Robust Trolley & Frame Design
1 1/4", 16 gauge steel tube frame & 12 gauge engine plate
Convenient integrated gun, hose, & wand hanger



Model
  Model Number:MSH3125-S
 UPC:879399000959
 Manufacturer:Simpson
 Made in USA:No
Engine
 Engine Brand:Honda GC
 Starter:Recoil
 HP/CC190 cc
 Fuel Tank Size1.9 quarts
 Engine Consumer Warranty:2 Years
Pump
 Pump Brand:Faip
 Pump Type:Axial Cam
 Adjustable Pressure:No
 Chemical Injection:Siphon Tube
 Pump Consumer Warranty:1 Year
Housing
 Frame Type:2-Wheel Cart
 Wheels:Pneumatic
Hose
 Hose Storage:Hook
 Hose Length:25 ft
 Hose Material:PVC/Plastic
 Hose Diameter:5/16 Inch
 Hose Connections:M22
Spray Gun
 Spray Gun Connection:M22
 Spray Gun Grade:Residential
 Spray Gun Wand:Single Wand
 Spray Tips:Quick Connect Tips (5)
 Turbo Nozzle:Sold Separately
Overview
 Weight:85 Lbs. (38.56 kilograms)
 Dimensions:33L x 21W x 19H
(83.82 x 53.34 x 48.26 cm)
 Mfr Consumer Warranty:1 Year
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  7 Questions
Q: On the Simpson Megashot 3100- if i order it can i get 50 feet of hose with it?
by Peter from Connecticut on July 22, 2014

A: You can order an extension with it to make your hose 50 feet total. This will come with the necessary adapter to join the two hoses together.

25' Extension Hose

You can also purchase a separate 50 foot hose.

50' High Pressure Hose
by Mike, Product Expert
Q: Can I use the MTM Hydro 3.0 Turbo Tip Nozzle on the Simpson Model MSH 3125-S Washer ?
Also, where do I find a tank for the cleanser so the siphon tube can go into and does it mount to the washer ? Thanks a lot

by Pat from New Jersey on July 14, 2014

A: Yes the MTM 3.0 orifice turbo nozzle would be the correct item for you. We do not sell add on detergent tanks here. I would recommend reaching out to the folks at Simpson to see where one can be purchased. Their number is 877-362-4271
by Mike, Product Expert
Q: Does the Simpson 3100 have a container to put cleaning detergent in.
by Jason from Louisiana on March 09, 2014

A: No this unit does not have a detergent tank. It comes with a downstream injection system, which is a siphon hose running off the pump. You would put the siphon hose in a detergent of your choice and it would draw chemicals when using the black tip.
by Mike, Product Expert
Q: I bought a Simpson 3100 from Sam's that was the display model, when I got home there were no spray nozzles. I think the bag blew out of the pickup. Anyway, I need to get tips for the sprayer, a model MSV3100 p/n 60464. Are tips available separately?
by John Owens from New Mexico on August 30, 2011

A: Yes, there are definitely spray tips available for purchase. I am posting a link below to the correct size tips you would purchase for that model:

3.0 Orifice Spray Tips
by Mike, Product Expert
Q: I'M CONCIDERING BUYING A SIMPSON 3100 MODEL MSV3100. DON'T KNOW ANYTHING ABOUT PRESSURE WASHERS.
I'M A FARMER AND I WILL USE IT AS AN ALL AROUND PURPOSE WASHER. IS THIS A GOOD PRESSURE WASHER

by LARRY GUNTER from South Carolina on March 26, 2011

A: Simpson is one of the first and largest pressure washer manufacturers in the U.S. and they make great quality pressure washers. Also, this model has a Honda engine installed on it which is one of the most reliable small engines available for pressure washers. You can definitely use this model pressure washer as an all purpose machine that would be capable of handling a variety of tasks
by Mike, Product Expert
Q: I have moss buildup on my concrete patio which is very thick. I need a pressure washer that will clean down to the concrete in a fairly short period of time. I've used the 2600 psi versions before but they do not cut it. Any advice?
by Robert Olsen from Washington on March 26, 2011

A: I would definitely recommend using a pressure washer with at least 3000 psi. A 3000psi pressure washer is normally sufficient for cleaning concrete. Given the amount of moss build up that you have and depending on how large of an area you have to clean, you might want to purchase a pressure washer with a psi rating between 3400-4000 psi to complete the project as fast as possible.
by Mike, Product Expert
Q: I bought a 3100 psi Simpson PW @ Sam's Club. Can I get a 50 foot hose with fittings for this machine from you/Simpson?
by Bert Solomon from South Carolina on March 26, 2011

A: Yes, we carry a 5/16" 50' hose by Legacy.

I posted a link below to the hose I am referring to:

Legacy 50' High Pressure Hose
by Mike, Product Expert
Simpson MSH3125-S Reviews & Ratings
Write Review
Overall Rating
Features
4/5
Quality
4/5
Performance
4/5
Value
4/5
Overall
4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5
Pros
Easy To Use (17)
Reliable (11)
Price (10)
High Quality (9)
Easy To Store (8)
Cons
Heavy (1)
Unreliable (1)
Hard To Wheel Around (1)
Pressure Hose Is Not Fle... (1)
Choke S (1)
90% of respondents would recommend this product to a friend
44 Reviews  Sort by 
 
Mike, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
117 Reviews
Total Helpful Votes
2414 Helpful Votes
Pressure Washers Direct Recommended

There isn't a big stretch between our "Better" and "Best" choices in this category. Both have good engines and good pumps.

However, this Simpson unit has a durable Honda GC engine, which has earned it's place at the top of the small engine heap for being quieter and easier to start than other engines in its class.

Amongst all of the consumer grade pressure washers we carry, this model has been by far the most reliable and durable pressure washer in this category.
more
Mike Recommends This Model
Was this review helpful?
23134
John
Purchased from Pressure Washers Direct
Purchased 7/12/14
Most Helpful Positive Review
REVIEWED
AUG.
23
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Power Washed Down To The Bare Wood!
My deck and ramp had years of sealer and stain and looked horrible with uneven wear spots, damaged surfaces, and stains. I used my Simpson to remove it all in one step). It worked and it's down to the bare cedar wood and staying that way!
View Image
Pros: Easy To Use, Price, Features, Quiet
John Recommends This Simpson Product
John's Experience With Pressure Washers Direct
Web Site
5/5

Service
4/5

Shipping
5/5
"I needed a power washer strong enough to remove several layers of sealer and stain from both cedar decking and pressure treated decking. I used my Simpson to get it down to the bare wood in one step. It took some time but was well worth it."
 more
Was this review helpful?
01
Philip Ardoin
Ville Platte, LA
Purchased from Pressure Washers Direct
Purchased 7/1/14
Most Helpful Critical Review
REVIEWED
JUL.
22
2014
3 out of 53 out of 53 out of 53 out of 53 out of 5
Cannot Connect Hose To Washer
I received the washer 2 days ago. I found that I could not attach the high pressure hose to the pressure washer. It is apparently missing threads. I contacted the company and they are supposed to be sending out a replacement hose. Waiting to use.
View Image
Philip Recommends This Simpson Product
Mike, the Pressure Washer Expert
Product Expert
Philip,
That is very odd... I'm glad the folks at Simpson are taking good care of you. We will follow up and make sure this is just a one-time thing, and not a bad batch of hoses. Thank you for letting us know.

We appreciate your business, and apologize for any inconvenience.
more
Was this review helpful?
21
Johnathan Bagley
Texarkana, AR
REVIEWED
SEP.
11
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Soap Connection
I just purchased this pressure washer today. I thought it was going to take me a while to set up, but all I had to do was turn the handle around and attach the spray handle. In 3 minutes, I was done.

I have read the owners' manual and instruction manual. I have a question about the soap connection. When you're not using the clear soap suction tube, is there a cap that needs to go over top of the soap fitting on the pump????? Just seems like dust and Bugs could get sucked in the fitting.... more
Johnathan Recommends This Simpson Product
Mike, the Pressure Washer Expert
Product Expert
Johnathan,
The suction hose does not need to be plugged up when you are using the unit. It will only siphon using the low pressure black spray tip. On the unit I have at home, I just roll it up, and tie a twist tie around it.

I believe the black cap you are referring to is just a cap that fits over the threads during shipping to protect them. Sometimes, as the unit travels, they get knocked off. No need to be concerned with this.
more
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10
Bob S.
Palmyra, NJ
Purchased from Pressure Washers Direct
Purchased 5/19/14
REVIEWED
AUG.
30
2014
3 out of 53 out of 53 out of 53 out of 53 out of 5
Disappointed
Bought this washer because of the Honda engine and Simpson reputation. It stopped working after three months. Supposed to be Easy Start but cord is difficult to pull. Cannot get it serviced. I was sent to three places. The first two were not even Simpson dealers and the third was a Honda repair shop. He diagnosed it but wouldn't work on it. I have had to make four phone calls and three trips with no solution.
Mike, the Pressure Washer Expert
Product Expert
Bob,
We apologize for the inconvenience this has caused you and do see the manufacturer is working with you to get this issue resolved. If you need anymore help or feel you are not getting the proper assistance, please let us know and we will be happy to assist.
more
Was this review helpful?
10
Aj Weinberger
Thousand Oaks, CA
Purchased from Pressure Washers Direct
Purchased 8/21/14
REVIEWED
SEP.
11
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Cylinder Head Cover Is Crushed In.
You need to package the pressure washer better for shipment.
Aj Recommends This Simpson Product
Mike, the Pressure Washer Expert
Product Expert
Aj,
I apologize for the damage that occurred during shipping that damaged the valve cover. However, all of the packaging is done through Simpson, the manufacturer. I will forward your concern to them. They do have about a 2% damage rate which is expected with UPS and FedEx.

With that being said, if the unit has not been gassed, we can pick it up and get you a new one out. If it has been gassed, I would be more than willing to order a new valve cover for you. Just respond back with the engine serial number and I will get one on order right away. The scratched and dented cover is more cosmetic damage than operational damage I apologize for the shipping damage, further concerns on this matter give me a call directly at 800-710-7499. Thanks
more
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00
Christopher Rusnak
Kennett Square, PA
Purchased from Pressure Washers Direct
Purchased 8/18/14
REVIEWED
SEP.
09
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Value
I did a lot of research and Pressure Washers Direct had exactly what I wanted. Quality with a Honda Engine.

I have used it for a total of 16 hours and love every min of using it. The only thing I would change is extending the wand a bit. This thing purrs like a kitten and starts on the first pull, HOT or Cold.
Christopher Recommends This Simpson Product
Christopher's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Great purchasing experience and FAST Delivery!!!"
 more
Was this review helpful?
00
Matt M.
Fairfax Station, VA
Purchased from Pressure Washers Direct
Purchased 8/14/14
REVIEWED
SEP.
07
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Power Washer
As advertised.
Pros: Easy To Use, Reliable, High Quality, I'd Buy It Again
Matt Recommends This Simpson Product
Was this review helpful?
00
Paul H.
Sugarland, TX
REVIEWED
SEP.
17
2014
3 out of 53 out of 53 out of 53 out of 53 out of 5
45 Minutes
This is the second Simpson in 2 months that's averaged 45 minutes before it broke.
First one bought at Costco and returned, started leaking oil through the water input fixture.

Upgraded to the 6598, which ran great for 45 minutes. Then the engine and pressure started pulsating, so I checked the gas.

The gas was full, so I checked the oil and found water in it. I returned it to TSC. Luckily both broke quickly and the retailers took them back.
Was this review helpful?
01
Brad B.
Luling, LA
Purchased from Pressure Washers Direct
Purchased 10/27/13
Total Helpful Votes
28 Helpful Votes
REVIEWED
JAN.
03
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Great Around The House
Megashot 3100 works great for the use around the house- I pressure wash a large driveway and the brick on the house.

Very good pressure washer with the Honda engine for easy starts.
Pros: Durable, Easy To Use, Exceeded Expectations, Reliable
Brad Recommends This Simpson Product
Was this review helpful?
286
Robert P.
Hampstead, NC
Purchased from Pressure Washers Direct
Purchased 4/1/14
REVIEWED
MAY.
15
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Deck And Porch Furniture Look New
Had the deck and porch furniture for nine years. Used the Simpson pressure washer (yellow nozzle) to clean the furniture. Looks new.

Next project is the driveway.
Pros: Features, Price, Reliable, Easy To Store
Robert Recommends This Simpson Product
Was this review helpful?
81
R.
Orleans, MI
Purchased from Pressure Washers Direct
Purchased 6/24/14
REVIEWED
JUL.
03
2014
2 out of 52 out of 52 out of 52 out of 52 out of 5
Our Of The Box Didn't Work
Unpacked the washer, oiled the engine and hooked up the water line, the pressure line is a joke, I doubt if it would hold the 3100 pressure.The engine started right off and nothing, the pressure was hose pressure and it never improved.Called costumer service and the nearest service center was 37 miles away. Took the washer in and they told me it would more than likely be 3 weeks before it was done.

Great, wanted to use washer and now another 3 weeks. I think the company should have just... more
Was this review helpful?
71
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