The Sun Joe SPX4000 is an electric pressure washer offering a maximum water pressure of 2030 PSI and flow of 1.76 GPM. (Read full specs)
Zoom on the Sun Joe SPX4000
In a nutshell, the Sun Joe SPX4000 is a medium duty pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:
- spot cleaning of hard, paintless surfaces and reaching far-away areas
- intense cleaning of hard, unpainted surfaces
- cleaning of painted or delicate surfaces
- applying detergent and cleaning solutions
Powered by a 14.5 amp motor, its axial pump can deliver a pressure of 2030 PSI (around 34 times more than a standard garden hose) and a flow of up to 1.76 GPM. Combined, these values mean that the Sun Joe SPX4000 has a cleaning power of 3572.8 Cleaning Units.
As it is an electric pressure washer, the motor of the SPX4000 gets easily started by a simple ON/OFF switch. The unit is ready-to-use with peace of mind, thanks to the included 35 ft GFCI cord.
Design & Handling
The Sun Joe SPX4000 offers superb mobility, with a hand truck design and approximate dimensions of D21.2 x W19.3 x H36.6 in. Its sturdy metal frame provides longevity to the assembly. The foam-padded fixed handle adds to the SPX4000 convenience of transport, while offering a comfortable grip.
With a weight of only 27.8 lbs, the unit is very easy to carry around. A set of two 8" wheels also improves the ease of transport of the device.
Along with the Sun Joe SPX4000 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: Detergent is stored in a removable 0.4 gal tank. The detergent dilution ratio is selected manually, via a dedicated dial. If a soap nozzle is attached, the device will proceed to add the detergent to the water automatically.
- Pressure hose: Using a set of convenient hooks, the included 20 ft ⌀1/4" high-pressure hose can be easily stored on the unit when it is not running.
- Spray gun and wand: The included classic ergonomic spray gun and its wand can be easily stored in a side hook.
- Nozzles: The 5 included nozzles, and the respective surfaces they’re appropriate for, are listed in the table below.
|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.
- Total Stop System (TSS): This feature automatically shuts off the pressure washer when the trigger is not engaged, to prolong the pump's lifespan.
- Onboard storage: The Sun Joe SPX4000'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 trigger lock mechanism (which prevents accidental operation).
- Accessories: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the Sun Joe SPX4000 also comes with pressure hose, power cord, nozzle cleaner, wand and spray gun.
The Sun Joe SPX4000's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Sun Joe SPX4000 compare to similarly priced pressure washers.
- Able to deliver a maximum pressure of 2030 PSI, the Sun Joe SPX4000 is one of the electric products that produce an above average water pressure, in the $100 to $150 price range. If you're going after the highest possible power of the water stream, one of the best in this price range is the Realm BIOP that can reach up to 2400 PSI.
- In the aforementioned price range, the 1.76 GPM (gallons per minute) of this washer makes it one of the best performing units in terms of the delivered volume of water.
- With a rather impressive value of 3572.8 Cleaning Units (PSI x GPM), the SPX4000 has a higher cleaning efficiency compared to similarly priced devices. If you consider the highest overall cleaning power as a really important factor, the Realm BY02-BCMH and its 4025 Cleaning Units has one of the highest cleaning efficiency of all the similarly priced units.
Here's a list of the most popular specific comparisons:
As you can see from this interactive chart, when compared to other electric washers between 3500 and 4000 Cleaning Units, the Sun Joe SPX4000 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 (104°F max.)|
|Soap tank||0.4 gal, removable|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||20 ft, ⌀1/4|
(D x W x H)
|Approx. 21.2 x 19.3 x 36.6 in|
|Wheels||2 wheels, ⌀8"|
|Included accessories||Nozzle cleaner, wand, spray gun, high pressure hose, 35 ft GFCI power cord, 5 nozzles|
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.
About Sun Joe
Sun Joe is the brand that the parent Snow Joe Company uses to market its line of summertime outdoor power equipment. Founded in 1994 in Edison, NJ, Snow Joe + Sun Joe has consistently supplied do-it-yourselfers with quality corded electric and battery-powered tools for home and gardening needs. The company strives to be ecologically friendly and prides itself on innovation and low-cost solutions. Their range of products includes snow throwers, lawn mowers, pressure washers, and trimmers. The design team is located in Carlstadt, NJ, while the manufacturing facilities are located in China, India, Taiwan, Japan, as well as in the USA.
The Sun Joe SPX4000 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Sun Joe pressure washers, please consult Sun Joe's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-866-SNOWJOE (866-766-9563).