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Simpson MS60921-S Spec Breakdown

The Simpson MegaShot MS60921-S is a gas-powered pressure washer offering a maximum water pressure of 3300 PSI and flow of 2.4 GPM. (Read full specs)

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Features and Specifications

General
FuelGas-Powered
HandlingWheelbarrow
WaterCold
PSI3300
GPM2.4
Cleaning Units7920
Engine187 cc 6 HP Honda GC190 4-stroke OHC
PumpAxial Cam
SeriesMegaShot
Other model numbers60922
Features
FrameWelded steel
Soap injectionVia siphon hose
Soap dilution7:1
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose25 ft, ⌀1/4
Hose storageHooks
Misc
Dimensions
(D x W x H)
Approx. 23.5 x 21.3 x 22.8 in
Weight71 lbs
Wheels2 wheels, ⌀10", pneumatic
Included accessoriesOil, steel wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityTrigger lock and thermal relief valve
EmissionsEPA
Warranty5 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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Description

With a SIMPSON MegaShot 3300 PSI @ 2.4 GPM pressure washer, you receive an optimum performance for minimum effort. Quickly and easily clean siding, driveways, cars, prep for painting and more.This is a perfect option for homeowners, because it’s lightweight, easy to maneuver and can be transported by one person. The MS60921 is powered by a Honda engine and comes with a 25’ hose, ergonomic spray gun and 5 Quick-Connect nozzles. (source: Simpson (opens in a new tab))

Zoom on the Simpson MS60921-S

In a nutshell, the Simpson MS60921-S is a heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:

  • spot cleaning of hard, unpainted surfaces or high reach areas
  • intense cleaning of tough, paintless surfaces
  • cleaning of painted or delicate surfaces
  • use of detergent and cleaning solutions

The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.

Power

The Simpson MS60921-S in use

The Simpson MS60921-S

Powered by a 187 cc (6 hp) engine, its axial cam pump can deliver a pressure of 3300 PSI (around 55 times more than a standard garden hose) and a flow of up to 2.4 GPM (CETA-certified values). Combined, these values mean that the Simpson MS60921-S has a cleaning power of 7920 Cleaning Units.

The Honda GC190 engine of this gas-powered pressure washer relies on an old-school pull-start mechanism to get started.

Gasoline storage is facilitated by a fuel tank with a maximum capacity of 0.48 gallon.

Design & Handling

The wheelbarrow design of the Simpson MS60921-S grants mobility and stability to the unit. The robust and sturdy welded steel frame offers longevity to the assembly. The handle adds to the MS60921-S convenience of transport.

Weighing 71 lbs, the unit is easy to maneuver by most people. A major component of its weight are its 187 cc Honda GC190 engine and welded steel frame. Nethertheless, thanks to its two 10" pneumatic wheels, the MS60921-S remains very easy to manipulate and maneuver.

Main Features

The Simpson MS60921-S in use

The Simpson MS60921-S

The Simpson MS60921-S's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.

  • Soap injection: Detergent is fed in through a siphon hose, since the device lacks a soap tank. The Simpson MS60921-S has an automatic soap dilution mechanism, which dilutes the detergent using a 7:1 ratio. When a soap nozzle is connected, the detergent will be added automatically to the water.
  • Pressure hose: The included 25 ft ⌀1/4" high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
  • Spray gun and wand: The included classic ergonomic spray gun and its steel wand can be easily stored in a side hook.
  • Nozzles: The 5 nozzles included with the device, and the respective surfaces which they’re the most suitable for, are shown in the following table.
 


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionUse with cautionSuitable

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

Some of the accessories of the Simpson MS60921-S

Some of the included accessories

  • Onboard storage: The Simpson MS60921-S features a handy storage area, which allows you to neatly store nozzles and accessories and be always prepared by having everything needed at hand.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation) and a thermal relief valve (which helps to prevent internal pump damage).
  • Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Simpson MS60921-S comes with spray gun, oil, soap hose, wand and pressure hose.
  • Emissions: The Simpson MS60921-S is NOT CARB-compliant and so you cannot buy it nor sell it in California.

Product Videos

The Simpson MS60921-S's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Simpson MS60921-S compare to similarly priced pressure washers.

  • Able to deliver a maximum pressure of 3300 PSI, the Simpson MS60921-S is one of the gas-powered products that produce an above average water pressure, in the $400 to $500 price range. As for the device with the most powerful water stream, in this price range, one of the top products is the Ryobi RY803423H with 3400 PSI.
  • The achievable water flow of this washer, which reaches 2.4 GPM (gallons per minute) can be described as low, compared to other devices in its price range. If being able to rinse away debris as efficiently as possible is your priority, one of the products with the highest GPM in this price range is the Lifan LFQ3370, with 3 GPM.
  • In comparison to other gas-powered units of similar price, the 7920 Cleaning Units (PSI X GPM) of the MS60921-S are average. When it comes to the highest overall cleaning power in the current price range, one of the products at the very top currently is the Lifan LFQ3370 and its 9900 Cleaning Units.

Here's a list of the most popular specific comparisons:

Price comparison

As you can see from this interactive chart, when compared to other gas-powered washers between 7500 and 8000 Cleaning Units, the Simpson MS60921-S is on the average side of the price range.

Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.

The bottom line

STRENGTHS:
  • In the expected price range
  • Honda engine
  • Designed to be stable
  • Good range of nozzles included
  • Automatic detergent dilution
  • Onboard storage
  • Several security features
  • 5 year (limited) warranty
  • High PSI for the price
AVERAGE SPECS:
  • Decent CU for the price
WEAKNESSES:
  • No soap tank
  • Not CARB-compliant
  • Low GPM for the price

Do you own the Simpson MS60921-S and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About Simpson

Simpson has over 50 years of experience making quality products for the outdoor power equipment industry. Part of the FNA Group based in Pleasant Prairie, Wisconsin since 2006, they are a vertically-integrated company, meaning most of the parts and accessories are manufactured and assembled by them. Their manufacturing facilities are international. With the company motto "Driven by Performance", Simpson continues to offer a great variety of pressure-washing systems for the homeowner or the professional contractor.

Warranty Information

The Simpson MS60921-S is covered under a warranty for up to 5 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Simpson pressure washers, please contact the Simpson Customer Support: 1-877-362-4271.

Simpson MS60921-S
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    Great machine ?

    + PROS: Very Good Product .
    - CONS: No cons love machine.
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