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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
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4.7 out of 5 stars
stars
682 ratings682 reviews
  1. 5 stars84% (572)
  2. 4 stars12% (81)
  3. 3 stars1% (9)
  4. 2 stars1% (4)
  5. 1 star2% (16)

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Showing 661-670 of 682 reviews
Jun 10, 2015
Reviewer name: Golfradict
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Powerful Pressure Washer Here

Strong and reliable you could not ask for better from a Honda powered pressure washer

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Mar 27, 2024
Reviewer name: Steve B
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This washer was an upgrade from a 2800 psi washer I had. The increased power and GPM cut my hard tasks in half. Cleaning my driveways with a 20” surface cleaner went from 8hrs to 3hrs! The ability to adjust the pressure is a game changer.

Great power washer, gets the job done! Highly recommend!

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

That's great to hear, Steve B. We are glad to know your 4400 PSI pressure washer has delivered an impressive power upgrade and it performed in tandem with your surface cleaner to make short work of such a big job. Show off those results any time by tagging #simpsonclean on social media and we'd love to see what you achieved on that driveway. Have fun tackling your projects and thanks for the positive feedback!

Jan 29, 2026
Reviewer name: Nismo
5 out of 5 stars
5 out of 5 stars review

Excelente

Esta máquina tiene mucha presión y funciona muy bien.

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

We're glad you've enjoyed a flawless performance with plenty of power. Enjoy your new Simpson pressure washer, Nismo!

Jun 12, 2020
Reviewer name: DirtdrillerRandy
5 out of 5 stars
5 out of 5 stars review

Pure Cleaning Power, it's a Beast!

I bought this Pressure washer for cleaning hard surfaces such as concrete, brick and stone. I really like the down stream chemical injection system also. It has performed flawlessly so far.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Oct 28, 2025
Reviewer name: Anonymous
4 out of 5 stars
4 out of 5 stars review

Pressure washer 4400 PSI

I bought this 3 weeks ago and it’s working great, only issue is the pressure washer spray nozzle has a broken threaded screw on connection, calling customer service today

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

We're glad to hear you've enjoyed a great performance from your 4400 PSI pressure washer, & we look forward to getting the nozzle issue resolved as quickly as possible. Thanks for taking the time to review!

Nov 2, 2025
Reviewer name: Autopilot
5 out of 5 stars
5 out of 5 stars review

Great washer with Adjustable pressure

Bought April 2025. Very High pressure and is adjustable. Great for washing the vehicles including the tractor and the house as well as concrete. Fires up first pull

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

We're happy to hear your 4400 PSI pressure washer has performed with plenty of power & versatility to tackle such a wide range of jobs, Autopilot. Show it off any time by tagging #simpsonclean on social media with photos of your projects & we'd love to see it at work. Thanks for reviewing!

Jan 14, 2019
Reviewer name: Kyle37R
1 out of 5 stars
1 out of 5 stars review

Pump only lasted about 3 hours

I purchased the Simpson 4200psi and used it for a job and the pump started making a loud noise and quit working. For the price I paid for the pressure washer I expected it to last a long time. Hopefully everyone else’s experience has been better.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Oct 17, 2020
Reviewer name: Bumpa
5 out of 5 stars
5 out of 5 stars review

Very strong and efficient

It reduced the time it took to clean my concrete by 2/3. Very strong and fast. The gas usage was not bad ether. I have had it just under a month and am very happy.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
May 6, 2020
Reviewer name: DKSC
1 out of 5 stars
1 out of 5 stars review

Injector problems

As a pressure washer the stats are impressive however I cannot get the chemical injector to work properly.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Nov 13, 2019
Reviewer name: AlwaysForwardServices
5 out of 5 stars
5 out of 5 stars review

Great Machine

This is the first unit we purchased to start our business. Easy to use and Powerful. I love this thing...IT IS A BEAST!

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
reply from Customer Service

Glad you love it AlwaysForwardServices!!! Best of luck with your new business, you're off to a great start. - SIMPSON Team