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Simpson MS60921-S - 3300 PSI 2.4 GPM Gas Pressure Washer With Honda Engine

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

FuelGas-Powered
HandlingWheelbarrow
WaterCold
PSI3300
GPM2.4
Cleaning Units7920
Engine187cc 6 HP Honda GC190 4-stroke OHC
PumpAxial Cam
SeriesMegaShot
Other model numbers60922
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
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.

Zoom on the Simpson MS60921-S

The Simpson MS60921-S, a heavy duty, commercial pressure washer, gives its user an all-around versatile cleaning experience, topped off by the following features:

  • pinpoint spot cleaning of hard, unpainted surfaces, accessing high areas, and successfully removing stubborn stains
  • general cleaning of hard surfaces , washing vehicles, and preparing surfaces for painting
  • gentle cleaning of delicate surfaces, and low pressure cleaning of larger areas
  • utilizing cleaning solutions, and rinsing surfaces clean

Ahead are presented its power characteristics and design, its main features and any other additional features.

Power

The Simpson MS60921-S in use

The Simpson MS60921-S

The Simpson MS60921-S's axial cam pump, powered by a 187cc (6 hp) engine, can provide a pressure of up to 3300 PSI (approximately 55 times more than a standard garden hose) and a flow of up to 2.4 GPM (CETA-certified values). Thus, the Simpson MS60921-S achieves a cleaning power of 7920 Cleaning Units.

Starting the Honda GC190 engine of this gas pressure washer involves using a conventional pull-start method.

Gasoline is stored in a fuel tank with a maximum capacity of 0.48 gallon.

Design & Handling

With its wheelbarrow design, the Simpson MS60921-S delivers superior maneuverability and stability, facilitating easy transport and steady performance across various surfaces. Built to endure, the welded steel frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The handle adds to the MS60921-S convenience of transport.

At 71 lbs, we can't really say that the unit is lightweight, and manually lifting or transporting it could be a significant challenge for users, especially if they need to move it frequently or navigate over uneven terrain. The major reasons for its heavy weight are its 187cc Honda GC190 engine and welded steel frame. Nevertheless, with its two 10" pneumatic wheels, users can manage the MS60921-S with less difficulty, even over uneven terrain.

Main Features

The Simpson MS60921-S in use

The Simpson MS60921-S

The Simpson MS60921-S comes with a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are detailed below.

  • Soap injection: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. The Simpson MS60921-S includes an automatic soap dilution mechanism, allowing detergent to be diluted to the ratio of 7:1 with ease. Upon attaching a soap nozzle, the pressure washer seamlessly integrates the detergent into the water flow.
  • Pressure hose: Utilizing a set of convenient hooks, the unit offers a convenient solution for storing the included 25 ft ⌀1/4" high-pressure hose when it's not in use, keeping it neatly organized.
  • Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its steel wand.
  • Nozzles: In the table below, you can see the 5 included nozzles alongside their respective recommended surface uses.


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

Kindly note: The shapes of the nozzles depicted above are for illustrative purposes and may vary. Symbols indicate suitability, with a red cross signifying 'Not recommended,' a green check for 'Suitable,' and an orange check for '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's handy storage area lets you store nozzles and accessories, and thus, you’ll be always prepared and have everything necessary for the job at hand.
  • Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage) and a trigger lock mechanism (which prevents accidental operation).
  • Accessories: Included with the Simpson MS60921-S are also the owner's manual (opens in a new tab) and some basic documentation to get you promptly started, along with several accessories, such as soap hose, oil, spray gun, wand and pressure hose.

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.

  • The Simpson MS60921-S, reaching a PSI of up to 3300, is one of the more powerful gas-powered units in $400-500 price range. If the highest possible power of the water stream is your priority, one of the champions in this price range is the Simpson PS61201 with 3500 PSI.
  • This washer, with a GPM of 2.4 (gallons per minute) has a somewhat lower water flow value compared to devices in its price range. When it comes to efficiently rinsing away debris, one standout option within this price range is the Lifan LFQ3370E, delivering an impressive 3 GPM.
  • Boasting 7920 Cleaning Units (PSI X GPM) in total, the MS60921-S positions itself in the average cleaning efficiency range for devices of similar pricing and fuel type. If prioritizing the highest overall cleaning power, the Lifan LFQ3370E with its 9900 Cleaning Units may stand out for its exceptional cleaning efficiency among similarly priced units.

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

Price comparison

As you can see from these interactive charts, 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
  • 5 year (limited) warranty
  • Honda engine
  • Designed to be stable
  • Good range of nozzles included
  • Automatic detergent dilution
  • Onboard storage
  • Several security features
  • High PSI for the price
AVERAGE SPECS:
  • Decent CU for the price
WEAKNESSES:
  • No soap tank
  • 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, but their gas-powered pressure washers are made in the USA. 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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  1. 5
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    Great machine ?

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