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Stanley SXPW3425 Spec Review

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)

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Stanley SXPW3425 3400PSI Gas Pressure WasherStanley SXPW3425 3400PSI Gas Pressure Washer
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Description

Zoom on the Stanley SXPW3425

In summary, the Stanley SXPW3425 is a heavy duty, commercial pressure washer, that offers an all-around versatile cleaning experience, and also:

  • spot cleaning of hard, paint-free surfaces and out-of-reach areas
  • thorough cleaning of hard, paint-free surfaces
  • cleaning of painted and frail surfaces
  • applying detergent and cleaning solutions

Its power characteristics and design, its main features and all its additional features are presented ahead.

Power

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.

This gas-powered pressure washer’s Kohler engine is started by a traditional 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. Its sturdy steel frame provides longevity to the assembly. The handle adds to the SXPW3425 convenience of transport.

The majority of users will be able to maneuver this unit easily, it only weighs 67 lbs. One of the largest contributors to its weight are its 208 cc Kohler engine and its steel frame. Since the SXPW3425 has a set of two 12" never-flat wheels, it is still easily maneuvered and manipulated.

Main Features

Along with the Stanley SXPW3425 itself, the package also includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are discussed in further detail below.

  • Soap injection: While the device doesn't feature a soap tank, detergent supply is ensured by a siphon hose. The detergent will be added automatically to the water when a soap nozzle is attached.
  • Pressure hose: The included 35 ft ⌀5/16" high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
  • Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its wand.
  • 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

The specs of the Stanley SXPW3425

The Stanley SXPW3425

  • Onboard storage: With the Stanley SXPW3425's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
  • 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: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Stanley SXPW3425 comes with nozzle cleaner, wand, spray gun and pressure hose.
  • 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, with a max water pressure of 3400 PSI, has one of the highest PSI values of the gas-powered products in the $300-400 price range.
  • 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 maximum rinsing efficiency is your top priority, one of the devices with the highest water flow in the same price range is the Lifan LFQ3370, with a GPM of 3.
  • With a rather impressive value of 8500 Cleaning Units (PSI x GPM), the SXPW3425 has a higher cleaning efficiency compared to similarly priced devices. If you consider the highest overall cleaning power as a really important factor, the Lifan LFQ3370 and its 9900 Cleaning Units has one of the highest cleaning efficiency of all the similarly priced units.

Price comparison

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.

The bottom line

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

Do you own the Stanley SXPW3425 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
FuelGas-Powered
HandlingWheelbarrow
WaterCold (90°F max.)
PSI3400
GPM2.5
Cleaning Units8500
Engine208 cc Kohler 4-stroke OHV
PumpOEM Technologies™ Axial Cam
Features
FrameSteel
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose35 ft, ⌀5/16
Hose storageHooks
Misc
Dimensions
(L x W x H)
Approx. 33.3 x 18.3 x 19.8 in
Weight67 lbs
Pressure controlGun
Wheels2 wheels, ⌀12", never flat
Included accessoriesNozzle cleaner, wand, spray gun, high pressure hose, 5 nozzles
SecurityTrigger lock and thermal relief valve
EmissionsN/A
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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About Stanley

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.

Warranty Information

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.

Stanley SXPW3425
2 Total Score
1 review
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1 Review
  1. 1
    Ease Of Use
    20
    Value
    20
    Quality
    20
    Performance
    20

    Stanley is no longer the company it once was I can tell ya that ! First off I bought this model in February of 2020 used it once did have some major problems getting it to start but finally it did. It did set over 6 months went to use it on a job started up pulled trigger and engine died instantly over and over again . I sent a warranty request to Stanley who referred me to dewalt who still has yet to give me any answers I’ve been playing this game for 6 weeks now and quite frankly this things is too new to be messing up already I just want my machine fixed and I feel like I’m being jerked around I even offered since they are owned by dewalt now to give this pos back and pay the difference for a dewalt washer which is much more expensive but as long as the machine works I don’t have a problem with it . Even after offering that they still have not responded . They will surely blame the slowness on covid and people need to get off the covid train already I’m sick of it affecting everything you got lazy people working from home now doing what they want and it’s sickening !

    + PROS: Looks real nice
    - CONS: Doesn’t work . And when it does start up it don’t have any pressure it’s a pos !
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