Sun Joe SPX4500 vs. SPX4501: Electric Pressure Washer Comparison
- Loredo Litherland
- Aug 3, 2019
- 4 min read
Purchasing an electric pressure washer is one of the best decisions that you can make. Pressure washers are fantastic tools, and electric pressure washers, even more so.

What a pressure washer is, is its kind of like a hose. The same kind of hose that you use to water the plants in your garden, and to wash random dirt and muck off of the ground in your backyard. But, a pressure washer isn’t just any regular hose, it’s a hose that uses a powerful motor to force the water out at an incredible speed – or pressure since this is a “pressure washer”.
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When you are using a pressure washer, the water shoots out of the hose at a very quick rate. This water then eliminates the stains, gunk, grime, muck, and dirt that are on any of the surfaces it comes into contact with. Using a pressure washer, you can clean just about anything. That’s why people love pressure washers because they are incredibly powerful and exceptionally versatile.

In this buying guide, you’re going to learn about two great electric pressure washers. The Sun Joe SPX4500, and the Sun Joe SPX4501. These are two of the best electric pressure washers on the market, and you’re going to learn what it is, exactly, that they offer!
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What Does The Sun Joe SPX4500 Offer?
The Sun Joe SPX4500 is a “large” pressure washer. You’ll notice that the motor, along with the other components that are attached to the motor, are somewhat large and bulky. Most of this comes from the fact that the Sun Joe SPX4500 is also one of the most powerful electric pressure washers on the market. That’s why the motor is so large.

Sun Joe Electric Pressure Washer Comparison

Sun JoeSPX4500SPX4501Motor13 amp/2000 W13 amp/2000 WMax PSI (at initial discharge per CSA internal pressure testing)2500 psi2500 psiGPM (with nozzle open at minimum pressure)1.48 gpm1.48 gpmDetergent Tank Capacity1 gal1 galHose ReelN/AYesTSS (Total Stop System)YesYesWeight37 lbs45.9 lbsPriceCheck PriceCheck Price
On the bottom of the Sun Joe SPX4500, there are wheels. These wheels are great. They make it a lot easier for you to move the pressure washer around, from place to place, without having to lug a big motor around. So, while the design is a little clunky, it isn’t that difficult to use.
When it comes to the motor’s power, it gives you 13 amps of power. That is quite a bit of power, and it allows you to generate a significant amount of water pressure. Water pressure that you can then use for just about any cleaning task.
For you to use this water pressure, you’re going to need to connect the Sun Joe SPX4500 to the hose outlet that’s in your yard. And, the hose that Sun Joe provides is about twenty-feet long. But, you can extend it, using an extension, if you need to.

Once you’ve connected the hose, you then need to attach a nozzle. The Sun Joe SPX4500 comes with five different nozzles. Each one of these nozzles is a little different from the others, and they allow you to direct the water with a certain level of pressure and intensity. So, depending on the cleaning task that you have, you might go with a water nozzle that has a smaller opening for water, or a water nozzle with a larger opening.
When everything is connected, you can turn the Sun Joe SPX4500 on and begin to use it. Or, right before that, you can put some detergent into a small tank. This detergent can make the cleaning process a little faster, and a little easier since it helps get rid of muck and grime.
In the end, the Sun Joe SPX4500 is one of the best electric pressure washers available! It’s a very powerful electric pressure washer, and it also gives you plenty of choices and options for how you use it.

What Does The Sun Joe SPX4501 Offer?
If you look at the Sun Joe SPX4500, and then look at the Sun Joe SPX4501, you aren’t going to notice too many differences. And that’s because there aren’t any distinct differences between the two devices. Instead, they’re mostly the same.

Where the Sun Joe SPX4501 does differentiate itself, though, is in the fact that it has a somewhat different design. It’s not immediately apparent, but moving the Sun Joe SPX4501 is a little easier, and this is because it’s a little smaller, and this aids in giving you some more mobility and freedom. And, the hose reel is designed in a simpler manner, so it’s easier to use the hose.
When it comes to the motor power, it’s the same. 13 amps, which is still quite a lot. Using this motor power, you have access to some very strong water pressure – around 2,000 PSI to 2,500 PSI – and you can then use this water pressure to completely eradicate all manner of gunk, grime, muck, stains, and just about anything else. Efficiency is not an issue, with the Sun Joe SPX4501.

Just like the Sun Joe SPX4500, you have five different water nozzles that you can choose from. Each one of these water nozzles is of a different size, and they direct water differently. From this water direction, the water is as intense as you need it to be. Each water nozzle is a little different, but each one gives you the power that you need, for whatever pressure washing task that you are focusing on.
When you have plugged in the Sun Joe SPX4501, taken out the hose, chosen a water nozzle, you can then put some detergent in a small tank. This tank can hold one-gallon of detergent, just like the Sun Joe SPX4500, and while it isn’t a requirement, using some kind of detergent does make it easier to remove certain kinds of stains and gunk.
In the end, the Sun Joe SPX4501 is not that different from the Sun Joe SPX4500. But, that’s okay, because it doesn’t need to be that different. The Sun Joe SPX4500 was already great, and the Sun Joe SPX4501 makes a few design improvements, and these improvements lead to a quicker and more enjoyable experience.
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