The Simpson MS61084-S is a gas-powered pressure washer offering a maximum water pressure of 3400 PSI and flow of 2.5 GPM. (Read full specs)
Zoom on the Simpson MS61084-S
The Simpson MS61084-S, a heavy duty, commercial pressure washer, gives its user an all-around versatile cleaning experience, topped off by the following features:
- spot cleaning of hard, unpainted surfaces and high-reach cleaning
- intense cleaning of tough, paintless surfaces
- cleaning of painted or delicate surfaces
- use of detergent and cleaning solutions
The Simpson MS61084-S's axial cam pump, powered by a 196 cc (6.5 hp) engine, can provide a pressure of up to 3400 PSI (approximately 57 times more than a standard garden hose) and a flow of up to 2.5 GPM (CETA-certified values). The Simpson MS61084-S thus has a cleaning power of 8500 Cleaning Units.
A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Kohler SH265 engine.
Gasoline is stored in a steel fuel tank with a maximum capacity of 3.4 gallons.
Design & Handling
The wheelbarrow design of the Simpson MS61084-S grants mobility and stability to the unit. Its sturdy welded steel frame provides longevity to the assembly. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.
The majority of users will be able to maneuver this unit easily, it only weighs 64 lbs. Its 196 cc Kohler SH265 engine and welded steel frame all add up to a substantial part of that weight. The MS61084-S can still be easily manipulated and maneuvered, thanks to its two 10" pneumatic wheels.
The Simpson MS61084-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 detergent will be added automatically to the water when a soap nozzle is attached.
- Pressure hose: Using a set of convenient hooks, the included 25 ft ⌀5/16" high-pressure hose can be easily stored on the unit when it is not running.
- Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
- Nozzles: The table below shows you the 5 included nozzles, as well as the surfaces they're the most appropriate for.
|Concrete, brick, masonry||Use with caution||Suitable||Suitable||Suitable||Suitable|
|Siding, gutters, house||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Fencing, deck, patio||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Lawn equipment, boat, RV||Not recommended||Use with caution||Use with caution||Use with caution||Suitable|
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.
- Onboard storage: The Simpson MS61084-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), a thermal relief valve (which helps to prevent internal pump damage) and a low oil protection.
- Accessories: Included with the Simpson MS61084-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 pressure hose, spray gun, oil, wand and soap hose.
- Emissions: The Simpson MS61084-S is EPA-approved and CARB-compliant. Thus, selling and purchasing this pressure washer is allowed in each of the 50 states, including California.
The Simpson MS61084-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 MS61084-S compare to similarly priced pressure washers.
- Able to deliver a maximum pressure of 3400 PSI, the Simpson MS61084-S is one of the gas-powered products that can produce the highest water pressure, in the $300 to $400 price range.
- In its respective price range, the water flow of this washer, 2.5 GPM (gallons per minute), ranks as average. If maximum rinsing efficiency is your top priority, one of the devices with the highest water flow in the same price range is the Predator 3100, with a GPM of 2.8.
- Boasting with 8500 Cleaning Units (PSI x GPM), the MS61084-S is one of the more efficient devices in its respective price range. 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 Predator 3200 and its 8960 Cleaning Units.
As you can see from this interactive chart, when compared to other gas-powered washers between 8000 and 8500 Cleaning Units, the Simpson MS61084-S is on the cheap side of the price range.
It can therefore be a really good buy if you're looking to acquire a budget pressure washer.
Features and Specifications
|Water||Cold (90°F max.)|
|Engine||196 cc 6.5 HP Kohler SH265 OHV 4-stroke|
|Pump||OEM Technologies™ Axial Cam|
|Other model numbers||61084, 61085, MS61085|
|Soap injection||Via siphon hose|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||25 ft, ⌀5/16|
(L x W x H)
|Approx. 30.4 x 20.5 x 24 in|
|Wheels||2 wheels, ⌀10", pneumatic|
|Included accessories||Oil, wand, spray gun, high pressure hose, soap hose, 5 nozzles|
|Security||Low oil, trigger lock and thermal relief valve|
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.
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.
The Simpson MS61084-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.