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Customer reviews for PowerShot PS4240 49-State 4200 PSI at 4.0 GPM HONDA® GX390 with Industrial Triplex Pump Cold Water Professional Gas Pressure Washer for
PowerShot PS4240 49-State 4200 PSI at 4.0 GPM HONDA® GX390 with Industrial Triplex Pump Cold Water Professional Gas Pressure Washer
4.7 out of 5 stars
stars413 ratings413 reviews
  1. 5 stars82% (340)
  2. 4 stars13% (53)
  3. 3 stars1% (5)
  4. 2 stars1% (3)
  5. 1 star3% (12)
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Showing 71-80 of 413 reviews
Apr 5, 2018
GA DIY Guy
5 out of 5 stars review

Verified Purchase

One Powerful Pressure Washer

I purchased this unit recently and used it for a couple days. It is very powerful and exceeded my expectations. The engine started with a couple pulls and I had no operational issues. The hose is very heavy duty but is somewhat cumbersome to use. The wand was great and nozzles met my expectations. The one area of improvement could be the hose.

Review from simpsoncleaning.com
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Apr 27, 2026
Michael D
1 out of 5 stars review

Junk!

I bought this machine a week ago because it was rated high for all categories. I got the machine and hooked it up……chemical injector doesn’t work the black valve cap on the regulator keeps popping off and the machine hydro locked on me. Horrible investment. Don’t waste your time or money

Review from simpsoncleaning.com
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reply from Simpson Team

Hello, Michael D. We're concerned to hear about this rocky start & would like to learn more about the issues you've encountered with the injector/valve cap. Would you give our team a call directly at 877-362-4271 or email us at productsupport@simpsoncleaning.com? We hope to determine how to smooth out this experience as quickly as we can. Thanks for the review & we hope to be hearing from you soon!

Apr 30, 2026
ry@lrs
5 out of 5 stars review

Great Machine!

Purchased the pressure washer with an additional (2) 100’ lines and the pressure regulator. Super simple to put together and use. Definitely awesome to have the pressure regulator when you have this much pressure. Allows for peace of mind when washing company vehicles. The pressure washer is a beast and is surprisingly fairly quiet compared to other pressure washers. Can’t wait to see what else it can handle!

Review from simpsoncleaning.com
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May 16, 2020
Pressured4400
4 out of 5 stars review

Verified Purchase

Powerful

This 4400 psi unit has incredible power. After about 4 uses, something inside the spray gun failed causing it to spray continuously even when the trigger wasn’t being pulled. It was still within the 90 day accessory warranty, so they quickly sent out a replacement (I had it within 3 days of calling). I only wish the accessory warranty was a bit longer. Had this happened just two weeks further out, it would have technically been out of warranty.

Review from simpsoncleaning.com
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Sep 10, 2017
Eric
5 out of 5 stars review

Verified Purchase

Professional equipment, with professional results.

I purchased this machine a month ago, and have been using it almost every day with no problems. This machine has real power perfect for commercial application. My only complaint would be it is hard to start at times. Would recommend electric start for this beast. Other wise "GREAT PRESSURE WASHER. You guys are the best....

Review from simpsoncleaning.com
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Oct 9, 2019
KMac
5 out of 5 stars review

Verified Purchase

Power!!!! Wow

I’ve been pressure washing houses for about 10 yrs. This is the best washer I have bought. It also comes at a good price. I have had no problem with the Simpson motor. I couldn’t pay for the overpriced Honda motor. From my experience Honda makes a good motor but the pressure washer usually wears out before any motor I’ve ever had. This washer has so much power it is hard to hold onto if you have it at full psi. It does adjust, but does not have a gauge. I just bought a new gauge to see how much power it actually has with my 150 ft hose. Great product, easy to start.

Review from simpsoncleaning.com
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reply from Customer Service

Keith, Wow. The best washer you've ever bought? - THANK YOU for such a wonderful compliment. We are so happy to know your feedback - SIMPSON Team

Jul 19, 2019
Johnnie Walker
5 out of 5 stars review

Verified Purchase

Plenty of cleaning power

I bought this pressure washer a few weeks ago. I was hesitant about buying it with Simpson engine rather than Honda but the Simpson engine starts easily and runs fantastic With 4400 PSI, you can clean anything in no time especially with the 4500 PSI Simpson turbo nozzle. This is a Great pressure washer. Took about 5 minutes to assemble and put in supplied oil.

Review from simpsoncleaning.com
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Nov 11, 2019
AM00
4 out of 5 stars review

Verified Purchase

Very good pressure washer

I had no previous expereince with pressure washers. The purchase of the PS60843 was my first experience. The packaging was good, the labeling and literature was good. I felt the literature could have discussed/identified the pressure offloader and the thermal offloader some more. After about 2 hours of using the unit, water started leaking out from the pressure offloader valve (I think it is). This is the brass spring loaded valve pointing downwards on the water output. I thought this is how the valve should operate, but the leak was costant, even when the engine was shut off. The leak caused the engine to pulse when the trigger was not depressed. I then checked the valve and it needed tightening. This should have been tightened at the factory and should not have come loose after 2 hours of use. However, this was a minor inconvenience. The engine starts well, if you turn down the pressure regulator to the lowest, and trigger the wand to release pressure. If the engine did not start after two firm pulls, depress the wand trigger again to release the pressure. I would like to have seen a simple fuel level indicator. Currently you have to remove fuel filter from the fuel tank and look inside. This should be fairly easy, but the filter has no real way to be held on too and lifted out without getting jammed against the surfaces of the tank surrounding it. Removing the filter is actually a very delicate and somewhat timely exercise. I made a wire hook to lift the filter out. It is simple and works, but another factory supplied method would have been nice.Perhaps a transparent fuel hose from the tank would be a good indicator. The lowest pressure I was able to get is 2000 PSI. I ran the unit at 3500PSI, but I could have gotten 4,000 or more. I did not want to max out the unit as it is new....break it in slowly. I am yet to play with adjusting the engine trottle using the supplied lever, and see if the pressure would decrease. I have not used the unit since, but will in a few days time. I cannot comment on reliability as yet, but sure hope this unit is reliable....very reliable. Overall, as of now, I believe this is an excellent unit. I am so far pleased with it. Would I purchase it again, yes.

Review from simpsoncleaning.com
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reply from Customer Service

Hello Customer, On behalf of SIMPSON, we truly appreciate the thorough feedback that you've provided in regards to our product services. Please know that we are in the process of continuing to improve our product each and every year. - SIMPSON Team.

Jul 11, 2020
Scott64
4 out of 5 stars review

Verified Purchase

Great washer, not so great carburetor

Fantastic pressure washer, only problem is that the needle/seat doesn't seal so it drains the tank into the cylinder and I had to remove the plug and pull the rope to get all the gas out then from that point on I have to close the fuel shut-off valve every time I stop the engine.

Review from simpsoncleaning.com
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Nov 2, 2017
Martin
5 out of 5 stars review

Verified Purchase

Professional grade!

I originally bought a less powerful model from another manufacturer. I wasn't pleased and set out to get a better power washer for my home. I checked many models, features, and cost. The Simpson PS4240 is the bomb -- by far the best product and cost. Has the power to do any job and the durability to last a long time.

Review from simpsoncleaning.com
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