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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
578 ratings578 reviews
  1. 5 stars83% (478)
  2. 4 stars13% (75)
  3. 3 stars1% (7)
  4. 2 stars1% (3)
  5. 1 star3% (15)
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Showing 181-190 of 578 reviews
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
Helpful?7AT7XV54Y2LL15224104831
Apr 29, 2026
Atex
4 out of 5 stars review

Great Machine for Cleaning Concrete

Great machine for use with a 20" surface cleaner. Starts easily and has plenty of power. Might have a 2nd qt of motor 10w-30 oil to fill the machine from what is included. 1qt barely fills the engine with 1.2 qt capacity. Also, oil drain opening in frame could have been lined up better for servicing.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
May 18, 2026
Sani
5 out of 5 stars review

PRESSURE WASHER

⭐⭐⭐⭐⭐ The SIMPSON PowerShot PS60843 49-State is an absolute beast of a pressure washer. The Honda GX390 engine starts up easily and runs incredibly smooth, even during long jobs. The power is impressive — it cuts through dirt, mildew, grease, and grime on driveways, sidewalks, fences, and siding without any problem. The build quality feels very heavy-duty and professional. The steel frame, premium hoses, and overall design make it clear this machine is built to last. I also appreciate how easy it is to maneuver despite its size. What really stands out is the cleaning speed. Jobs that used to take hours now get done in a fraction of the time thanks to the strong PSI and high water flow. It’s perfect for homeowners who want commercial-level performance or anyone doing frequent pressure washing work. If you’re looking for a reliable, powerful, professional-grade pressure washer, the PowerShot PS60843 is definitely worth it. Highly recommended.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
Apr 26, 2026
Willywashn
5 out of 5 stars review

Better than expected

Bought this to replace a belt drive that was about 15 years old, wasn’t expecting near the power that the belt drive had but this unit has surprised me. The old unit was 4000 psi 4 gpm and this one’s 4400 psi. 4gpm. I have a large patio and lots of driveway to wash and this machine pushes my 20” surface cleaner great! Very impressed

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831
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
Helpful?7AT7XV54Y2LL15224104831
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 19, 2026
BikeRidingDad49
4 out of 5 stars review

Great for all the home projects

I just bought this last week and we have already used it for multiple projects around the house, including washing all the pollen off of multiple cars and my motorcycle. It has been great at getting them all clean and road ready. I am ready to use it on other projects around my house.

Review from simpsoncleaning.com
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May 19, 2026
Know what I mean, Vern
5 out of 5 stars review

Well built, powerful, quality all around

This machine is a combination of great parts and built well. First off, a Honda Engine. Can’t beat that. Then a ASA triplex pump. Also top notch. Built on a solid frame. This machine cuts off the dirt and mold very easily. Instructions are clear and plentiful. Recommended

Review from simpsoncleaning.com
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May 7, 2026
Milo Retro 27
5 out of 5 stars review

GREAT PRESSURE WASHER!!!

I ordered this for general use around my home including cleaning siding, concrete, my tractor and its equipment, plus getting river mold off of my boat. It does a great job. It was very easy to assemble and I had it ready in just a few minutes. Make no mistake. This washer is a brute!

Review from simpsoncleaning.com
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May 6, 2026
JWard
5 out of 5 stars review

Great Pressure Washer

Very happy i paid a little extra and got the Honda engine. It performed fantastic, no more than 2 pulls to start the engine each time. Unit had plenty of power to soft wash my two story house. I already upgraded with an additional 100 ft of simpson monster hose so i can leave my unit stationary and clean the entire house.

Review from simpsoncleaning.com
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Apr 23, 2026
D Thibs
4 out of 5 stars review

Made to work.

This thing is big, and heavy. The only reason I am giving it 4 stars instead of 5 is because of the typical terrible handle and lance holder. Other than that expected deficiency, setup was easy and started easy, sounds tuned. The power is something you have to get accustomed to when in use.

Review from simpsoncleaning.com
Helpful?7AT7XV54Y2LL15224104831