Simpson Megashot 3300 PSI Pressure Washer Review MS60921

Simpson Megashot 3300 PSI Pressure Washer Review MS60921

Simpson Megashot 3300 PSI Pressure Washer Finds the Sweet Spot for Homeowners

You don’t need a commercial-level pressure washer for the occasional tasks that pop around your home throughout the year. Coming in under $400 with a Honda engine, we decided to dive deeper into what you should expect from the homeowner-targeted Simpson Megashot 3300 PSI pressure washer.


  • Excellent pressure and flow rate for typical homeowner jobs
  • Honda GC190 engine
  • Small profile doesn’t take up a ton of floor space
  • 10-inch pneumatic tires roll well across lawns
  • Excellent value


  • Short handle design requires you to bend to reach

Check out our best pressure washer article to see our top picks

Simpson Megashot 3300 PSI Pressure Washer

Power Plant

Simpson turns to the ever-popular Honda GC190 engine to power the MS60921. In addition to pressure washers, it’s one of the most reliable power plants on lawn mowers, including the Husqvarna self-propelled lawn mower I use on my lawn.

Simpson Megashot 3300 PSI Pressure Washer Review MS60921

For a pressure washer targeting homeowners, I love the call to use this engine. Expect multiple seasons of reliable starting with minimal maintenance and years of trouble-free service with basic maintenance.


The Simpson Megashot 3300 PSI pressure washer uses an OEM Technologies axial cam pump to turn the engine’s power into a gunk-removing spray. While we see a lot of AAA-branded pumps on Simpson products, they opt for an OEM Technologies one here.

Simpson Megashot 3300 PSI Pressure Washer Pump

Commercial-grade models will step up to a triplex pump. However, the pump choice is appropriate for this unit as an occasional-use model.


At 3300 PSI and 2.4 GPM, the Simpson Megashot 3300 PSI pressure washer hits the sweet spot for homeowners. It has higher pressure and water flow than electric models and gets your jobs done faster. It’s also great for pairing with a surface cleaner to knock out concrete jobs in record time.

Cleaning concrete

What you can do with the power you have is pretty versatile.

  • Decks
  • Patios
  • Screens
  • Fences
  • Outdoor furniture
  • Siding
  • Paint prep
  • Concrete/stone

Where you hit limitations are on things like graffiti removal. You need to move up to the 4,000 PSI range before you start seeing real effectiveness there and it’s not an application most homeowners need to tackle.


The Simpson Megashot MS60921 comes with a standard suite of nozzles: 0º, 15º, 25º, 40º and a soap nozzle. Between those five, it’s very unlikely you’ll need anything other than specialty accessories.

Simpson Megashot 3300 PSI Pressure Washer Handle

The hose is a 1/4-inch x 25-foot MorFlex non-marring hose that’s a good fit on this model. Combined with a 100-foot garden hose, you’ll have a large range to work around your house.

Additional Field Notes

We like Simpson’s minimalist frame design. It’s made from steel tubing and welded together before receiving a powder coating to stave off rust. It gives you easy access to the engine and pump when you need it while still giving it a reasonable level of protection during transport.

Honda GC190 starting

The handle sits low and most people will have to bend down to reach it. The positive side is that it takes up less space and you can even flip the handle around when you’re done to make it more compact.

Simpson’s 10-inch pneumatic tires are nice to have. They’re easier to roll across the yard or even bare ground than the narrower, smaller-diameter wheels you find on some models.

One feature you won’t find is a soap dispenser and we’re okay with that call. Having a dedicated dispenser built it is helpful if all you’re using is the same kind of soap. However, if you use different cleaners for different jobs, it’s a pain to clean it out effectively.

When you connect the siphon hose to a detergent container, it’s going to pull at a 7:1 ratio using the soap nozzle—for every 7 gallons of water, it will pull 1 gallon of detergent.


The Simpson Megashot 3300 PSI pressure washer in this review is available from Tractor Supply Company for $399.99. That’s a solid value compared to what we see on models that use that Honda GC190 engine and an axial cam pump.

If Tractor Supply isn’t convenient for you, here are a few similar Simpson models from other retailers:

Pressure3300 PSI3200 PSI3300 PSI
PSI2.4 GPM2.5 GPM2.4 GPM
EngineHonda GC190Honda GC190Honda GC190
RetailerTractor SupplyAmazonLowe’s
*MS61033-S includes a 15-inch surface cleaner attachment

You might be able to save some money by going with an OEM engine or less expensive manufacturer, and they’ll do fine with proper maintenance. However, we prefer the long-term reliability of Honda engines when we can get them.

Ryobi RY80588AGenerac 10000007122Karcher G 3200 X
Pressure3200 PSI3200 PSI3200 PSI
Flow2.5 GPM2.7 GPM2.4 GPM
Pump Axial CamAxial CamAxial Cam

The Bottom Line

If you’re on the hunt for a gas pressure washer to use around the house, the Simpson Megashot 3300 PSI pressure washer (or one of its close cousins) really hits the sweet spot between performance and value. Powered by a Honda GC190 engine, it runs about the same price as other brands with an OEM engine in the same performance range. It’s highly unlikely you will find more bang for your buck with any other brand.

Simpson Megashot 3300 PSI Pressure Washer Specifications

  • Model: Simpson MS60921
  • Pressure Rating: 3300 PSI
  • Flow Rate: 2.4 GPM
  • Engine: Honda GC190
  • Pump: Axial cam
  • Hose: 1/4-inch x 25-foot
  • Nozzles: 0º, 15º, 25º, 40º, soap
  • Warranty: 2-year engine, 1-year pump, 5-year frame, 90-day accessory (warranty is based on consumer use, not commercial)
  • Price: $399.99

Get more info from the Simpson website.

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