Simpson MSH3125-S 3200 PSI Pressure Washer w/ Honda Engine (Cold Water, Gas)

SKU: MSH3125
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  • $665.00
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For Service Parts Ordering
It is up to the customer to ensure that they are ordering the correct part number. For help obtaining part numbers please contact:

HeatStar: 1-866-447-2194
Enerco: 1-888-849-1899
Mr. Heater, Cleveland Iron Works, and BaseCamp: 1-800-251-0001

2-year limited HONDA GC consumer engine warranty / 1-year limited pump warranty / 5-year limited frame warranty / 90-day limited accessory warranty /  30-day return policy


What's in the Box

  • Pressure washer
  • Gun
  • Hose
  • 5 Quick connect nozzles
  • Detergent siphon tube with filter
  • Engine oil
  • Quick set-up guide
  • Owner's manual (Download digital version)


  • 3200 PSI @ 2.5 GPM
  • HONDA® GC190 engine
  • Maintenance-free OEM Technologies™ axial cam pump
  • MorFlex™ Hose 1/4″ x 25′ is non-marring, kink and abrasion resistant and is equipped with threaded M22 connection
  • Ergonomic spray gun designed for comfort and control
  • 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and Soap
  • Heavy-duty welded steel construction frame
  • 10" Premium pneumatic tires


Want a lot of cleaning power, but don't want to spend a lot?

With the SIMPSON MegaShot 3200 PSI @ 2.5 GPM pressure washer, you get optimum performance for minimum effort. 

This 3200 PSI pressure washer with Honda engine was specially designed to help you at home or around the shop. It’s commonly used for cleaning decks, patios, home exteriors, cars, outdoor furniture and more.

The MSH3125-S is powered by a Honda engine and comes with a 25’ hose, ergonomic spray gun and 5 Quick-Connect nozzles.

The compact construction of this power washer makes it lightweight enough for one person to lift and transport. The unit is easy to operate and known for starting on the first pull.

Homeowners with a do-it-yourself kind of attitude, this is your chance to achieve maximum performance and reliability at a reasonable price point!



Water Pressure 3200 PSI
Flow Rate 2.5 GPM
Engine Honda GC190
Fuel Capacity 1.8 L (1.9 Quart)
Pump Type OEM Technologies™ Axial Cam Pump
Hose MorFlex Hose 1/4" x 25'
Pump / Hose Connection Threaded M22 Connection
Wheels 10" Premium Pneumatic Tires
Wand 16" Steel with Quick Connect and Threaded M22 Connection
Nozzle 0°, 15°, 25°, 40° and Soap
Frame Heavy-Duty Welded Steel Frame

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Customer Reviews
4.8 Based on 8 Reviews
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Filter Reviews:
Kurt H.
Canada Canada
Simpson MSH3125-S 3200 PSI Pressure Washer

Great product and great and fast service!!

Canada Canada
Fast delivery

Excellent fast delivery, good communication with LionCove. Haven't used washer enough to have an opinion one way or the either, pretty good do far

Canada Canada
What a little beast

Nobody else had it in stock, I searched and ordered from the "big box" stores and my order was cancelled twice. Found this company, had it in three days. Awesome machine.

Verified u.
Canada Canada
What a little beast

I searched online everywhere, nobody had it. Ordered it from two big box stores, order cancelled. Ordered from here, had it in 3 days.

Andrew D.
Canada Canada
Great unit but Simpson should pay attention to engine specs.

Unit seems strong and hopefully built to last with the Honda engine, which was my main reason for purchasing this. The inflated tires are easily one of the best features of this unit, large and roll over pretty much anything with ease. I've removed a star from my rating because there is no included soap container even though there is an included syphon hose for a soap container. There's also an issue with oil: the engine oil included with the unit is insufficient for proper operation! The engine manual clearly states that the engine requires 0.58L of oil and Simpson only supplies 0.47L of generic mystery oil, unfortunately I was forced to toss the supplied oil and go out to purchase the appropriate oil required for the engine to function properly.