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Customer reviews for PowerShot 4200 PSI at 4.0 GPM HONDA® GX390 with Industrial Triplex Pump Cold Water Professional Gas Pressure Washer for
PowerShot 4200 PSI at 4.0 GPM HONDA® GX390 with Industrial Triplex Pump Cold Water Professional Gas Pressure Washer
4.7 out of 5 stars
stars
580 ratings580 reviews
  1. 5 stars83% (479)
  2. 4 stars13% (75)
  3. 3 stars1% (7)
  4. 2 stars1% (3)
  5. 1 star3% (16)

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Showing 131-140 of 580 reviews
Jun 8, 2026
Keegan wamsley
5 out of 5 stars review

Super powerful. Really reliable. Always first pull. Never broke once. Not one problem with it.

I got this for my side hustle and it's amazing. I had a 2600 psi 2.5 gpm pressure washer and it was nowhere enough. This is plenty. It's so much more reliable. Makes cleaning concrete and siding so easy. Couldn't love it more! Simpson did a great job making sure the customer had everything they needed.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Jun 19, 2026
Jamez
5 out of 5 stars review

Absolute monster

Dealt with a few pressure washers. First time having a Simpsons, and this cleans extremely well. The 4.0gpm makes a lot of difference and its pressure stays consistent while also efficient on gas consumption. Overall very impressed by this machine. Well worth every penny if you want the job done right while also with speed.

Review from simpsoncleaning.com
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Jun 17, 2026
Brad Boggess
1 out of 5 stars review

Poor quality washer Model # PS4240-S

I am having to get warranty work done for the second time in just over a year losing over two months of operation and time/money taking to service center that is close to an hour away. My friend purchased the same unit around the same time (April 2025) and has had his fixed once already for the same exact reason.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
reply from Simpson Team

Hello, Brad Boggess. This certainly isn't a normal performance, & we appreciate you alerting us to the condition of these particular units. We hope the matter is resolved quickly & finally so you can enjoy a better experience as quickly as possible. Please don't hesitate to contact our team at 877-362-4271 or email us at productsupport@simpsoncleaning.com if we can assist with the process in any way. We will be sure to document this content in full for our records & appreciate you taking the time to review!

May 29, 2026
RAM RIDER
5 out of 5 stars review

ITS EXACTLY WHAT I NEEDED!

I JUST RECEIVED MY UNIT AND ITS VERY WELL BUILT I KNOW THIS ONE WILL LAST ME FOR A GREAT GREAT SEASON! PLUS I DESIRE TO ONLY HAVE A SIMPSON PRESSURE WASHER PRODUCT BECAUSE OF THE LOYALTY I HAVE DIVINELY EXPERIENCED FROM OF THEIR PRODUCTS! I HAVE NEVER EXPERIENCED ANY KIND OF PROBLEMS WHATSOEVER WITH THEIR PRODUCTS BECAUSE I HAVE ANOTHER PRESSURE WASHER THAT I HAVE HAD FOR A GOOD WHILE AND IT IS STILL RUNNING LIKE ITS BRAND NEW! AND I ONLY BROUGHT THIS ONE BECAUSE I BROUGHT A NEW SURFACE CLEANER THAT CALLED FOR A PRESSURE WASHER 3500PSI -4500PSI!

Review from simpsoncleaning.com
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Jul 12, 2020
blake1
4 out of 5 stars review

Verified Purchase

good product..

the simpson name says it all..had another model for 8 plus years..it finally gave out..so im giving this 1 a try..great power but it takes a few pulls to get it started..so far so good though

Review from simpsoncleaning.com
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May 8, 2019
rmholt4000
4 out of 5 stars review

Verified Purchase

Excellent features

Bought this equipment based on the psi not realizing how powerful it really is. The 4000 psi is more for professional use. The equipment does everything and more. I have only one negative thing, the operating manual is difficult follow.

Review from simpsoncleaning.com
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May 9, 2022
Rob27day
5 out of 5 stars review

Verified Purchase

Very happy

I've used my machine 3 times now in the last month. Very satisfied. Very easy to put together. Starts on the first pull. I just ordered all the attachments. Overall pleased with machine from price to function.

Review from simpsoncleaning.com
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reply from Marketing

Thanks, Rob27day. We are glad to hear you have enjoyed the easy-start & operation of your 4400 PSI pressure washer & have counted it a great value. Any time you care to share your results you can tag #simpsonclean with your before/after photos & we would love to see it. Enjoy your machine & thanks again for taking the time to review.

Sep 12, 2023
NameO
2 out of 5 stars review

Verified Purchase

Lots of power, AAA pump is not going to last.

Tons of power. No disappointment there. The unloader valve has failed at about 15 hours. I would also give it a low score for ease of use. The tube frame/cart is very awkward. Parts are hard to find.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
reply from Simpson Team

Hi, NameO. We're glad you've enjoyed the power of your unit, but sorry to hear about the unloader valve. This certainly is not the experience we strive for. If you would contact our team directly at 877-362-4271 or email us at productsupport@simpsoncleaning.com we would be happy to assist you in finding the parts you need and hope to get you up and running flawlessly as quickly as possible. We appreciate your valuable feedback and hope to be hearing from you soon. Thanks for sharing your experience!

Jun 23, 2020
DirtdrillerRandy
5 out of 5 stars review

Verified Purchase

Powerful Cleaning Tool

I bought this PW to clean hard surfaces like concrete, brick, stone, etc. I use a surface cleaner and it really does a super job! I would recommend this PW.

Review from simpsoncleaning.com
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May 22, 2019
CAWL
5 out of 5 stars review

Verified Purchase

Great Power Washer for the Price

I have been using this power washer for over a month now and it has been an excellent addition to my equipment. Performs as expected. To prevent back pressure on the pump, pull the trigger while starting the engine.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831