Sun Joe SPX4000 Pressure Washer:

If you’ve ever experienced the unenviable task of manually scrubbing a dirty and grimy deck, patio or driveway, you’ll appreciate just how time-consuming (and backbreaking!) it can be. It doesn’t matter how much you scrub either, as the dirt ultimately proves stronger than you are, and all you end up with is a half-finished job while feeling tired, sore, and frustrated. Not ideal.

Who says it needs to be such hard work, though? You’ve probably heard the saying that a good workman never blames his tools, but we’re calling BS on that right here.

Enter the Sun Joe SPX4000 Electric Pressure Washer; the smarter choice for anyone looking to handle even the dirtiest of home, outdoor, and auto-cleaning projects as quickly, thoroughly, and hassle-free as possible.

As you’ll see from this article, the SPX4000 comes packed with a variety of features to make it as quick and easy as possible to cut through every last piece of dirt and grime. From its powerful motor that generates an impressive maximum pressure of 2030 PSI, to the variety of quick-connect tips that allow you to tailor the pressure washer’s powerful spray to whatever you’re cleaning, you’ll be able to spend less time (and effort!) cleaning and more time enjoying your handiwork, all thanks to the Sun Joe SPX4000 Electric Pressure Washer.

The heart of any pressure washer is its motor, and in the case of the SPX4000, this is a powerful 14.5 Amp electric motor that generates up to 2030 PSI, or 1.76 gallons per minute, to help you enjoy maximum cleaning power.

The SPX4000’s real strength lies in how easy it is to manage all that power, though. Firstly, it comes with five quick-connect tips (see box and image below) which helps you tailor the powerful spray of the jet washer to whatever you’re cleaning:

Secondly, the Sun Joe SPX4000 features innovative pressure select technology that allows you to adjust the overall pressure when needed. For example, if you’re tackling some light dirt, grease or grime, you can choose the LOW/1450 PSI setting, while leaving the HIGH/2030 PSI setting for particularly stubborn dirt and the toughest cleaning tasks.

Lastly, we touched on the SPX4000’s ability to combine detergent when discussing the nozzles, and this is all thanks to the pressure washer’s built-in detergent tank. Although some jobs can be tackled using water alone, some tasks benefit from using to detergent to allow for more effective dirt removal, and the ability of the Sun Joe SPX4000 to work with a pressure washer specific detergent is a huge advantage.

Just fill up the tank with detergent, fit the dedicated soap nozzle and you’re good to go – you can even adjust the suction volume of the detergent using a handy dial – simple!

One of the most vulnerable parts of a pressure washer is the pump itself, and this usually experiences a lot of stress and strain during day-to-day use and especially when the pressure washer is used incorrectly.

Sun Joe has incorporated an innovative trigger mechanism on the SPX4000, which in addition to having a crucial safety lock to prevent the pressure washer ejecting water by mistake, also includes a micro-switch which is sensitive to water flow. Sun Joe refers to this as the Total Stop System (TSS), and it can detect water flow in the SPX4000’s pump. When the user releases the trigger, water flow stops through the pump, and the TSS automatically turns the motor off to prevent the pump overheating which in turn saves energy and helps prolong the pump’s life.

Weighing only 27.8 lbs, the Sun Joe SPX4000 is very portable. It also features a wheeled frame, meaning you can transport it easily to wherever you need to clean, including carrying it up and down steps or in and out a vehicle with ease if required. The frame itself is also made from metal, helping protect the pressure washer from bumps, scrapes, and knocks during use or while in storage.

You don’t need to worry about cleaning areas far away from a water or power source either, and you can forget about needing to dig out that old extension cable, as the SPX4000 features both a 20-foot hose and a 35-foot power cable, allowing you to clean even the most remote areas with ease.

The SPX4000 is easy to store after use too, all thanks to its compact design which measures just 22″ x 18″ x 36.6″. What’s more, it even has a handy holder for the lance, the five quick-connect tips, the power cord, and the high-pressure hose to help keep everything together without crucial components going missing (see image below).

Sun Joe has an excellent reputation for manufacturing quality products, and the SPX4000 more than lives up to this reputation, all while offering affordability and excellent value for money.

If you’re after a cost-effective pressure washer from a trusted and reputable company, and which features the power and cleaning capabilities akin to more expensive pressure washers from competing brands, you can’t go wrong with the SPX 4000.

Sun Joe SPX3000 vs SPX4000

There isn’t a great deal of difference between the Sun Joe SPX3000 vs SPX4000.

Aside from appearance and weight, the main differences are that the SPX4000 comes with pressure select technology (choose between 1450/2030 PSI using a simple switch), whereas the SPX3000 doesn’t, and the 3000 series includes a dual detergent tank allowing you to hold two different types of detergent (the SPX4000 only has one).

You can read our write-up of the Sun Joe SPX3000 for more information, but here is a basic summary of each model:

(Scroll table if needed)

Model Number:	SPX3000	SPX4000
Manufacturer:	Sun Joe	Sun Joe
Motor:	14.5A, 1800W	14.5A, 1800W
Power Source:	Electric	Electric
Maximum Pressure:	2030 PSI	2030 PSI
Working Pressure:	1450 PSI	1450 PSI
Maximum Flow Rate:	1.76 Gallons/min	1.76 Gallons/min
Decibels (dB):	96	96
Water Capability:	Cold	Cold
Detergent Tank:	Included	Included
Tips Included:	x5	x5
Cord Length:	35 Feet	35 Feet
Onboard Cord Storage:	Yes	Yes
Hose Diameter:	1/4″	1/4″
Hose Thread:	M22	M22
Hose Length:	20 Feet	20 Feet
Wheels:	Yes	Yes
Foldable Handle:	No	No
Product Dimensions:	15.6″ x 13.5″ x 33.9″	22″ x 18″ x 36.6″
Product Weight:	31 lbs	27.8 lbs
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