The Stanley FatMax® SXPW3425 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 Stanley SXPW3425
The Stanley SXPW3425, 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
Powered by a powerful 208 cc engine, its axial cam pump can deliver a pressure of 3400 PSI (around 57 times more than a standard garden hose) and a flow of up to 2.5 GPM (values claimed by the manufacturer). Combined, these values mean that the Stanley SXPW3425 has a cleaning power of 8500 Cleaning Units.
The Kohler engine of this gas-powered pressure washer gets started by a classic pull-start mechanism.
A fuel tank with a maximum capacity of 0.26 gallon is used to store gasoline.
Design & Handling
The wheelbarrow design of the Stanley SXPW3425 grants mobility and stability to the unit. The strong steel frame assures assembly longevity. The handle adds to the SXPW3425 convenience of transport.
With a weight of 67 lbs, the unit can be easily maneuvered by most users. Its 208 cc Kohler engine and steel frame account for a good chunk of that weight. The SXPW3425 can still be easily manipulated and maneuvered, thanks to its two 12" never-flat wheels.
The Stanley SXPW3425'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: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. Whenever a soap nozzle is connected, the detergent is automatically added to the water.
- Pressure hose: The 35 ft ⌀5/16" high-pressure hose, which is included with the device, can be stored neatly on the unit itself when idle, using a set of convenient hooks.
- 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 Stanley SXPW3425 allows you to be always fully prepared, as it features a handy storage area, where nozzles and accessories can be stored.
- Pressure control: Water pressure can be manually changed, using the adjustable throttle of the trigger gun.
- 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: The Stanley SXPW3425 comes with an owner's manual (opens in a new tab) and some basic documentation to get you quickly started. On top of that, you also get wand, spray gun, pressure hose and nozzle cleaner.
- Emissions: The Stanley SXPW3425 is NOT CARB-compliant. Thus, it cannot be purchased or sold in California.
The Stanley SXPW3425's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Stanley SXPW3425 compare to similarly priced pressure washers.
- The Stanley SXPW3425, which can reach up to 3400 PSI, has one of the highest pressure outputs of the gas-powered units that cost between $300 and $400.
- Considering its water flow, this washer, with a GPM (gallons per minute) of 2.5 is in the average 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.
- Reaching up to 8500 Cleaning Units (PSI x GPM), the SXPW3425 is one of the more efficient amongst its similarly priced peers. If you are after the highest overall cleaning power, the Lifan LFQ3370 with its 9900 Cleaning Units is one of the products that can achieve the highest cleaning efficiency in this price range.
As you can see from this interactive chart, when compared to other gas-powered washers between 8000 and 8500 Cleaning Units, the Stanley SXPW3425 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.
Features and Specifications
|Water||Cold (90°F max.)|
|Engine||208 cc Kohler 4-stroke OHV|
|Pump||OEM Technologies™ Axial Cam|
|Soap injection||Via siphon hose|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||35 ft, ⌀5/16|
(L x W x H)
|Approx. 33.3 x 18.3 x 19.8 in|
|Wheels||2 wheels, ⌀12", never flat|
|Included accessories||Nozzle cleaner, wand, spray gun, high pressure hose, 5 nozzles|
|Security||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.
Founded in 1843 by Frederick Stanley in New Britain, Connecticut, Stanley has become one of the most famous names in hand tools worldwide. The Stanley Works company merged with Black & Decker in March 2010 to form Stanley Black & Decker. Building on its reputation for the quality and reliability of its manual hand tools, the company has also branched out into electric tools and outdoor power equipment, such as pressure washers and wet-dry vacuums. By using technology and innovation, the company is committed to the continued production of quality products in an environmentally sustainable way.
The Stanley SXPW3425 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 Stanley pressure washers, please contact the Stanley Customer Support: 1-877-362-4271.