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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
236 Reviews
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  • Features
  • Specs
  • 13
    Q&A 
  • 236
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Water Pressure
3100
PSI
Water Flow
2.5
GPM
Cleaning Speed
7750
Cleaning Units
Engine
Honda GC
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

25 Feet Of 1/4" M22 High Pressure Hose
Lets you work in a wide area


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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:1/4 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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How-To Library

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  13 Questions
Q: Hi Mike,

I'm looking for pressure washer with 3000 psi, because that's what was recommended to me in order to use a telescopic 25'+ wand with it effectively. Thing is, I'd like to get a unit that has a 3/4" hose. I like the stats on the Simpson MegaShot 3100 PSI (Gas-Cold Water) Pressure Washer With Honda Engine, as well as the price, but it comes with a 1/4" pressure hose.

Can I buy a 50' or even a 100' 3/4" hose and use it with this machine instead? In other words, will it still connect to this machine and gun or no? Do you have a suggested unit that's better, at a similar price? One you recommend? I will be using this annually on my house, deck, fence and drive with sidewalk. Residential, but want it to last, if that helps.

Thanks,
Gordon

by Gordon from Georgia on July 19, 2015

A: Yes, you could purchase a 100 FT hose to use with the unit. However, those hoses are quick connect and would require you purchasing 2 adapters to attach it. You would need adapter model D10037 and D10088. I have attached links for you to view both adapters and the 100FT hose I would recommend.

Adapter D10037

Adapter D10088

100FT High Pressure Hose
by Mike, Product Expert
Q: This pressure washer works fantastic. The only problem is that it shakes so much that the spray tips come out of the holders. When using on concrete the machine will just spin around. What can I do to stop the movement?
by George from Iowa on June 14, 2015

A: Unfortunately, there is no way to stop the vibration of the unit while in operation. However, you will have to make sure you are constantly spraying water. This should cause the unit to not vibrate as much and is not damaging the pump. when the unit is left in idle for to long, the water will heat up and damage the pump seals.
by Mike, Product Expert
Q: how many cc's is the motor?
by Bob from New Jersey on June 07, 2015

A: This unit uses a Honda GC190 which is 190CC's
by Mike, Product Expert
Q: Does this power washer come with the oil for the pump and engine when I make my order?
by Chris Janz from Louisiana on May 04, 2015

A: The pump is sealed (no maintenance of oil) and will be shipped with oil in it. This will also come with a quart of oil shipped with it for the engine. There may be some residual oil in the engine from when it is tested at the factory so we recommend to check the level and add as needed (be sure not to overfill).
by Mike, Product Expert
Q: Can you adjust the pressure?
by George from Massachusetts on April 08, 2015

A: This unit does not have adjustable pressure at the pump, however, it is just a matter of choosing the right colored spray tip for your application.
0 DEGREE (RED TIP)
15 DEGREE(Yellow TIP)
25 DEGREE (Green Tip)
40 DEGREE (White Tip)
Soap Applicator (Black tip)
A. 0 DEGREE - BLASTING
B. 15 DEGREE - STRIPPING
C. 25 DEGREE - CLEANING
D. 40 DEGREE WASHING
E. 60 DEGREE- SOAP APPLICATION
by Mike, Product Expert
Q: Can this or any pw work with gravity fed water? I would hook it up to a 45gallon water tank not a faucet under pressure.

Thanks

by Rick from Arizona on February 02, 2015

A: No, this unit needs to be attached to a water source with a Min of 20 PSI and 3GPM. The only units that can be gravity fed are the belt drive units.
by Mike, Product Expert
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
Overall Rating
Features
4/5
Quality
4/5
Performance
5/5
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 (35)
Price (22)
High Quality (19)
Reliable (18)
I'd Buy It Again (18)
Cons
Unreliable (5)
Durability (4)
Heavy (3)
Low Quality (3)
Packaging (2)
88% of respondents would recommend this product to a friend
236 Reviews  Sort by 
 
Mike, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
122 Reviews
Total Helpful Votes
5057 Helpful Votes
Pressure Washers Direct Recommended

The MSH3125-S 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.

Put it all together and you wind up with a very versatile pressure washer at a very reasonable price.
Mike Recommends This Model
Was this review helpful?
44268
Chad W.
Doral, FL
Purchased from Pressure Washers Direct
Purchased 12/1/14
Total Helpful Votes
25 Helpful Votes
Most Helpful Positive Review
REVIEWED
DEC.
29
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Exellent Product
Very very powerful. Great price, starts easy and light on gas.
View Image
Pros: Easy To Use, Price, Easy To Store, I'd Buy It Again
Cons: Should Of Come With Ah Longer Wand
Chad Recommends This Simpson Product
Chad's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Very fast shipping, good communication."
 more
Was this review helpful?
2515
Dustin B.
Elk Point, SD
Purchased from Pressure Washers Direct
Purchased 10/1/15
Total Helpful Votes
10 Helpful Votes
Most Helpful Critical Review
REVIEWED
OCT.
27
2015
2 out of 52 out of 52 out of 52 out of 52 out of 5
Absolutely Terrible
Ordered this unit hoping for a high quality piece of equipment for home use. Unit arrived with a kinked hose, which caused a small pin-hole water leak in the hose.

I proceeded to try to use it anyway, which quickly (after about 10 mins) turned the small pin-hole turned into a bulge, then the hose exploded. THIS WAS THE FIRST USE, unacceptable. VERY unsatisfied, after spending this much money I had higher expectations.
View Image
Mike, the Pressure Washer Expert
Product Expert
Dustin,
I apologize for the unit arriving with a damaged hose. I got in touch with Simpson, and they are sending a new hose directly to you. You should have it in a few days.

Again, I apologize for the damage and any questions give me a call directly at 800-710-7499. Thanks
more
Manufacturer Response
Brand Rep
Dustin,
Hello my name is Zac and I am the Assistant Service Manager for the FNA Group who manufactures the Simpson line of gas pressure washers.
First and foremost thank you for your purchase of our Simpson Gas Pressure Washer; if you need further assistance please contact me directly at 1-847-621-8954 or via email at zdawson@fna-group.com. I would be more than happy to help resolve any issues or questions you may have.

Thank you
more
Was this review helpful?
103
John
Purchased from Pressure Washers Direct
Purchased 7/12/14
Total Helpful Votes
35 Helpful Votes
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?
359
Craig Y.
Cumming, GA
Purchased from Pressure Washers Direct
Purchased 5/2/15
Total Reviews
2 Reviews
Total Helpful Votes
15 Helpful Votes
REVIEWED
MAY.
23
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Bad Start Good Ending
When the box arrived the top of the box showed oil had soaked through it. Yes, oil... After opening it up I had determined that the oil filler cap was loose, causing whatever oil remained in the engine compartment to come out. The instructions said the engine is empty of oil but I wouldn't expect it to be completely empty. I also wouldn't' expect it to have that much oil in it. I would also expect that handlers would read the side of the box that says "This end up"!

Anyway,... more
View Image
Pros: I'd Buy It Again, Light Weight
Cons: Packaging
Craig Recommends This Simpson Product
Craig's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"I rated the shipping as 5 stars because pressure washers direct shipped it very quickly. However, after receiving a box that was turned upside down at some point during the storage or shipment I would buy it locally next time. I would prefer to have the opportunity to inspect it before taking delivery."
 more
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144
Robert S.
Cohoes, NY
REVIEWED
JUN.
16
2016
3 out of 53 out of 53 out of 53 out of 53 out of 5
Lasted Twenty Minutes
Purchased it from a chain store last Black Friday. Stayed in box till last weekend. Within 20 minuted of use, there was a separation between the silver and gold parts of the engine and the water flowed out like a fire hydrant. The store gave me my money back, although I'm considering giving it another try.

I assumed the Honda engine would be bullet proof, so I'm not sure if I should try a Briggs and Stratton, etc
Mike, the Pressure Washer Expert
Product Expert
Robert,
With respect, if water came out perhaps it was the pump that separated from the engine? Water doesn't run through the engine on any of the gas units I am familiar with.

Honda engines have earned their reputation as the best on the market. There are, however, different grades of Honda engine that may affect your buying decision. Their "GC" engine that's on this unit is consumer grade. It's a good engine and will perform fine for most homeowner tasks.

The Honda "GX" engines are commercial grade and have heavier duty components and will last longer- but they are more expensive.
more
Manufacturer Response
Brand Rep
Robert,
First and foremost thank you for purchase of one of our Simpson pressure washers. We truly appreciate your business and apologize for any possible issue your product is having. Please email Zac Dawson at zdawson@fna-group.com and he would be more than happy help warranty and or service any issue your having.

Thank you and we appreciate your business.

Simpson Pressure Washer Team!
more
Was this review helpful?
10
Wayne T.
Hammond, LA
Purchased from Pressure Washers Direct
Purchased 5/23/16
REVIEWED
JUN.
15
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Simply Simpson
Previously had a similar pressure washer with Honda engine that I used for 13 years. This unit has so far lived up to my expectations from Honda. Fill it up with oil, hook up the water and away we go. Started first crank and the 3200 psi really does the job and the unit moves around so easy.

I take care of two locations, my main house which is stucco and my vacation home on the river which is 100% wood with lots of deck, so you can imagine how often I use a pressure washer. Love it!
more
Wayne Recommends This Simpson Product
Was this review helpful?
10
Mike W.
Eads, TN
Purchased from Pressure Washers Direct
Purchased 4/9/16
REVIEWED
JUN.
14
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Happy
This is the best pressure washer I've ever owned. I was amazed by the cleaning power.
Mike Recommends This Simpson Product
Was this review helpful?
10
Kevin Z.
Riverview, FL
Purchased from Pressure Washers Direct
Purchased 5/23/16
REVIEWED
JUN.
13
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good So Far
So far I am happy with the msh-3125-s...the arrival had similar issues as have been stated before, there were oIl stains on the box and some oil on the machine. No big deal to me...I just wiped it up.

The machine started fine and ran fine. Pressure washes like a champ. I would agree that the nozzle holder could use a redesign as it does not appropriately hold them while the machine is in use. I would purchase again.
Kevin Recommends This Simpson Product
Was this review helpful?
10
Scott N.
La Porte, IN
REVIEWED
JUN.
12
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
What Can I Say... Fantastic!
Simply an amazing machine!!I wanted a Honda Engine, for it's reputation, and enough power to clean all areas around the house. It starts like a dream, and with the smallest nozzle cleaned mold of vinyl siding at 20 feet up.

Pressure Washers Direct!?!?!Everything, as advertised, delivered into my garage, two days. No delivery charges!

Set up was simple. Although I swear i saw in the instructions, a funnel or something to put the supplied oil into the engine.That was a little tricky...and... more
Scott Recommends This Simpson Product
Was this review helpful?
10
David M.
Daniel Island, SC
Purchased from Pressure Washers Direct
Purchased 5/15/16
Total Reviews
2 Reviews
REVIEWED
JUN.
27
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Everything A Homeowner Will Ever Need
This pressure washer is a beast. It' easy to start runs smoothly is relatively quiet stores compactly.

To increase it's versatility, I also purchased the Simpson Dial-n-Wash Pressure Regulator. This reduces the chance of etching wood or soft surfaces.

I highly recommend Simpson products. Solidly-built and easy to use and maintain.
David Recommends This Simpson Product
David's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Professional in all respects.Great value great service."
 more
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00
Clark A.
Owatonna, MN
Purchased from Pressure Washers Direct
Purchased 6/3/16
Total Reviews
4 Reviews
REVIEWED
JUN.
27
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Power Washer
Out of the box it started 1st pull. First project was a 16x16 deck, I also bought the turbo nozzle with this and works better than expected.

The 1st day I ran for many hours and went thru 5 tanks of fuel. My only complaint is the handle, wish it was about one foot taller
Pros: Easy To Use, Price, I'd Buy It Again, Exceeded Expectations
Cons: Low Handle
Clark Recommends This Simpson Product
Mike, the Pressure Washer Expert
Product Expert
Clark,
The handle is designed so the unit can be shipped by UPS or FedEX ground service instead of by freight truck. This allows for a significantly lower price, and hopefully offsets any inconvenience.
more
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00
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